Reasonability Notices

Pre Open Reasonability Edit

May 17, 2019 09:28:47

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  BIDU, SSNC.

Pre Open Reasonability Edit

May 17, 2019 09:22:12

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CUB, SFE.

Pre Open Reasonability Edit

May 17, 2019 08:57:41

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BOOT, CRAY, EDC, YANG.

Pre Open Reasonability Edit

May 16, 2019 09:08:23

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRG , LITE , MRTX , NICE.

Pre Open Reasonability Edit

May 16, 2019 08:48:40

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AGIO , IOVA , MMYT , NKTR , QIWI , WIFI , WIX , ZEUS.

Pre Open Reasonability Edit

May 15, 2019 09:24:51

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRZU, NRG, UNIT, VIRT, WERN.

Pre Open Reasonability Edit

May 15, 2019 09:09:59

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AMRC, CBD, EGHT, GGAL, IMGN, SSYS, TCS.

Pre Open Reasonability Edit

May 15, 2019 07:55:11

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

May 14, 2019 09:09:03

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: DQ, GDS, IONS, SLDB, SPSM, UVXY, YANG.

Pre Open Reasonability Edit

May 14, 2019 08:56:57

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CYBR, FCEL, IMMR, KNDI, XNET.

Pre Open Reasonability Edit

May 13, 2019 09:21:13

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AMBR , EHTH , TECL , VIXY.

Pre Open Reasonability Edit

May 13, 2019 09:07:19

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRZU , BZQ , BZUN , CHAU , CPRX , EDC , EEV , INSY , LABD , LABU , OILU , PI , QLD , SHLX , SNAP , SPXU , SRPT , SVXY , TNA , TQQQ , UPRO , UVXY , VIIX , WFT , XOG , YANG , ZUMZ.

Pre Open Reasonability Edit

May 10, 2019 09:24:34

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BIO, BLD, BPL, CARG, FSCT, GH, MOMO.

Pre Open Reasonability Edit

May 10, 2019 08:49:59

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALRM, ARGT, FDC, FGEN, JD, JOBS, NVRO, PBYI, SYMC, TRUE, TRXC, UBNT, WYNN, YELP, Z, ZG.

Pre Open Reasonability Edit

May 09, 2019 09:18:56

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CDNA, ROKU.

Pre Open Reasonability Edit

May 09, 2019 08:55:49

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AERI, AXGN, CNDT, CPA, CXW, ELF, ETSY, FOXA, GDOT, ICPT, KAR, NVEE, NWPX, RYAM, SRCL, STMP.

Pre Open Reasonability Edit

May 08, 2019 09:21:27

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ESPR, IPHI, NVTA, RGNX.

Pre Open Reasonability Edit

May 08, 2019 09:07:16

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CECE, DDD,EA, GTN, INGN, MCHP, MTCH, NYT, PAGP, PBPB, PTLA, PZZA, SLRC, SUPN, TRIP, TWOU, YRCW, ZAYO.

Pre Open Reasonability Edit

May 08, 2019 08:18:32

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

May 07, 2019 09:04:36

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BAM , DISH , VECO.

Pre Open Reasonability Edit

May 07, 2019 08:46:20

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AIG , AKRX , ARMK , ASNA , CPRX , CROX , GWPH , HIIQ , KALU , MNK , NLS , OILU , OLLI ,  PICK , PTCT , RACE , SEDG , TXMD , UVXY , UYG , XENT , YANG.

Pre Open Reasonability Edit

May 06, 2019 09:30:09

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALFA, AMZN, IWO, MKSI.

Pre Open Reasonability Edit

May 06, 2019 09:01:12

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ACAD, ADAP, ADNT, ASHR, ASHS, BLUE, BRKS, BRZU, BZUN, CHAD, CHAU, CQP, DNKN, DQ, EDC, EDZ, EPAY, ESPR, HMSY, HTHT, ILMN, LABU, LNG, MOMO, SBGI, TAL, TECL, TQQQ, UVXY, VCRA, VICR, VIIX, VIXY, VXX, WB, WUBA, XPP, YANG, YINN.

Pre Open Reasonability Edit

May 03, 2019 09:18:44

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ANET, APPN, BRKR, CTSH, DATA, EPAY, EXPE, FND, FTNT, G, GMED, HCC, HLF, ICPT, NMST, RPD, SRCL.

Pre Open Reasonability Edit

May 03, 2019 08:53:30

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AMZN, CRC, FCAU, MARA, MELI, OLED, RMD, SHAK, XRAY, ZIXI.

Pre Open Reasonability Edit

May 02, 2019 09:20:25

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: DMRC, EB, FARO, FNV, TPX, TSLA, WLL.

Pre Open Reasonability Edit

May 02, 2019 08:48:51

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ABMD, AMOT, APO, CREE, FLR, PENN, RTRX, SSYS, UA, UAA, W, XPO, ZNGA.

Pre Open Reasonability Edit

May 01, 2019 09:25:31

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAPL, AKAM, BMCH, BPOP, CAMP, CVS, ENPH, EXTR, FTR, HRTX, IPHI, LIVN, MGPI, MTOR, NUS, NVS, PCRX, RCL, SM, TNDM, TWLO, VCYT.


Pre Open Reasonability Edit

May 01, 2019 07:58:36

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

April 30, 2019 09:20:53

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CVLT, IIN, MKSI, PRGO, STX, TDG, VRNX.

Pre Open Reasonability Edit

April 30, 2019 09:07:12

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: IIN, PRGO, STX, VRNX.

Pre Open Reasonability Edit

April 30, 2019 09:05:44

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CGNX, CRTO, FLWS, FOLD, GHL, GOOG, GOOGL, MLM, NXPI, PI, SANM, TREX, TTS, TXRH, WAGE, WDC, WWD, YUMC.


Pre Open Reasonability Edit

April 29, 2019 09:17:25

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: GDI, IR, VNE.

Pre Open Reasonability Edit

April 29, 2019 08:50:26

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CYOU, HCC, MELI, MOMO, NHTC.

Pre Open Reasonability Edit

April 26, 2019 09:23:33

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AEO, ATEN, BEAT, BGG, BLMN, GRUB, GT, HEP, HP, INTC, INTU, INVA, MDCO, PETX, POWI, PTEN, QRVO, RING, SFLY, SOXL, SSTK, TREE, WDC.

Pre Open Reasonability Edit

April 25, 2019 09:29:53

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: DLX, ORLY SSTK, WWE.

Pre Open Reasonability Edit

April 25, 2019 08:48:15

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAN, ACHC, BCOV, CLF, CNSL, CRC, FB, FBHS, HEES, ITW, LEG, LKQ, MMLP, MMM, MSFT, NOW, NTGR, PRLB, PTC, ROK, SAVE, TERP, TZOO, XLNX.

Pre Open Reasonability Edit

April 24, 2019 08:58:51

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: MANH, TEL.

Pre Open Reasonability Edit

April 24, 2019 08:38:56

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: APC, APH, DPZ, HCC, IRBT, OC, OXY, RES, RHI, SAP, SLAB, TER.

Pre Open Reasonability Edit

April 24, 2019 08:25:05

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

April 23, 2019 09:04:41

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ASTE, CDNS, CHDN, GNC, HAS, LMT, TWTR, WAT, WHR.

Pre Open Reasonability Edit

April 22, 2019 08:41:28

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AKRX , CRC , DGS , ENS , FTEK , GGAL , GIII , ISRG , KEYW , MDSO , MX , OILU , PKI , RAD , SDRL , TZOO , UCO.

Pre Open Reasonability Edit

April 18, 2019 09:30:55

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CGC, CHKP, CP, PLXS, PODD, SNA, SNBR.


Pre Open Reasonability Edit

April 18, 2019 08:41:05

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BGNE, BX, HTHT, NXRT, PLXS, SKX, TEAM, URI.

Pre Open Reasonability Edit

April 17, 2019 09:18:35

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SOXL.

Pre Open Reasonability Edit

April 17, 2019 09:15:49

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BK, CEVA, JJC, SBNY, TXT.

Pre Open Reasonability Edit

April 17, 2019 08:48:08

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ABB, AEO, EBS, HOLI, NFLX, POL, QCOM.

Pre Open Reasonability Edit

April 17, 2019 08:08:47

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only:  SPX.

Pre Open Reasonability Edit

April 16, 2019 09:23:09

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  BRS, IP, KAR, MGP, PACW, SGMS.

Pre Open Reasonability Edit

April 16, 2019 08:45:03

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AJRD, CHAU, RECN.

Pre Open Reasonability Edit

April 15, 2019 09:12:23

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ADSW , AMRS , VIA.

Pre Open Reasonability Edit

April 15, 2019 08:31:38

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AJRD , ASMB , AXTA , BOOM , CLVS , GOGO.

Pre Open Reasonability Edit

April 12, 2019 09:15:55

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CXO, DIS, XEC.

Pre Open Reasonability Edit

April 12, 2019 08:43:33

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AMRS, APA, APC, BRZU, BSMX, DLS, DRIP, GASX, GUSH, KBE, PXD, WES.


Pre Open Reasonability Edit

April 11, 2019 08:48:49

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: APOG, BBBY, ESV, ICPT.

Pre Open Reasonability Edit

April 10, 2019 09:18:37

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: FSLR, GH, HGV, MSM, MYGN, NTRA, WVE.

Pre Open Reasonability Edit

April 10, 2019 08:53:44

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CALX, TPX.

Pre Open Reasonability Edit

April 10, 2019 08:01:51

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

April 09, 2019 08:53:21

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CERN, HOLI, LNN, NVS, PNR, RUTH, ZGNX.

Pre Open Reasonability Edit

April 09, 2019 08:50:07

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CERN, HOLI, LNN, NVS, PNR, RUTH, ZGNX.

Pre Open Reasonability Edit

April 08, 2019 16:50:23

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BA, BPT,FICO, ROKU, SPR.

Pre Open Reasonability Edit

April 08, 2019 16:48:55

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BPI, FRO, MARA, QDEL, TGI, Z.

Pre Open Reasonability Edit

April 05, 2019 09:21:43

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CCS, LIVN, NXST, SYRS, TGI.

Pre Open Reasonability Edit

April 05, 2019 09:14:02

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BOOT, BPI, MACK, PKD, QSR, SAM, SIX, SJR.

Pre Open Reasonability Edit

April 04, 2019 09:16:29

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: LNDC.

Pre Open Reasonability Edit

April 04, 2019 08:58:41

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BPI, BZUN, JBL, ODP, PH, RECN, RRGB, TSLA.

Pre Open Reasonability Edit

April 03, 2019 09:26:31

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: SUI, ZNH.

Pre Open Reasonability Edit

April 03, 2019 09:25:07

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: SUI, ZNH.

Pre Open Reasonability Edit

April 03, 2019 08:48:02

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ADXS, AMD, BOOM, GME, MSM, NUVA, PLAY, USNA, VVUS.

Pre Open Reasonability Edit

April 03, 2019 08:02:57

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

April 02, 2019 09:28:07

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ADMA, R.

Pre Open Reasonability Edit

April 02, 2019 09:21:04

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: VIVO, XNET.

Pre Open Reasonability Edit

April 02, 2019 08:41:00

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: APU, COMM, MGP, SGMO, SNH, UGI, WBA.

Pre Open Reasonability Edit

April 01, 2019 09:18:28

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BHF, BOOM, CHAU, PBYI, SCOR, SOXL.

Pre Open Reasonability Edit

April 01, 2019 09:00:16

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ADXS, AIR, AJRD, BRZU, CALM, ENVA, KTOS, MT, ON, PKX, RYAAY, SID, SORL.

Pre Open Reasonability Edit

March 29, 2019 09:26:48

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ELAN, GLPG, HNP, MAN, SGH.

Pre Open Reasonability Edit

March 29, 2019 08:51:49

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AZN, BRZU, CHAU, EXP, HOV, KMX, OILD, OILU, OXM, PRGS, RH, SAIC, ZNH.

Pre Open Reasonability Edit

March 28, 2019 09:20:56

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only:  QTNA.

Pre Open Reasonability Edit

March 28, 2019 09:05:38

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AIR, AMRN, COLM, CPLP, EDIT, FIVE, LULU, MGK, MOV, NLSN, PVH, PXH, VRNT, WBC.

Pre Open Reasonability Edit

March 27, 2019 09:24:43

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ACIA, BZQ, WCG.

Pre Open Reasonability Edit

March 27, 2019 09:02:25

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRZU, CNC, CRR, HOME, SCVL, TITN, TUR, XHR.

Pre Open Reasonability Edit

March 27, 2019 08:22:12

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

March 26, 2019 09:14:52

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALDX, CRMD, TR, XLRN.

Pre Open Reasonability Edit

March 26, 2019 08:41:36

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BBBY, BGNE, CDNS, COLL, MLHR, PSTG, UVXY.

Pre Open Reasonability Edit

March 25, 2019 09:20:58

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AVYA, IPHT, NCTY, PTI, SYF.

Pre Open Reasonability Edit

March 25, 2019 09:09:24

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CGNX, CRIS, EPAM, FGEN, GIL.

Pre Open Reasonability Edit

March 22, 2019 09:11:04

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: ZUO.

Pre Open Reasonability Edit

March 22, 2019 08:50:29

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRZU, BZQ, HIBB, YANG.

Pre Open Reasonability Edit

March 21, 2019 08:55:37

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AGN, CHDN, ENS, GES, MLHR, RAVN, WIFI.

Pre Open Reasonability Edit

March 20, 2019 09:21:26

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SMAR.

Pre Open Reasonability Edit

March 20, 2019 09:02:05

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AIR, FDX, NVRO, SAGE, TWI, VRTV.

Pre Open Reasonability Edit

March 19, 2019 08:54:15

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: COLM, FOE, LSI, THC, WAGE, YEXT.

Pre Open Reasonability Edit

March 19, 2019 08:25:33

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPX.

Pre Open Reasonability Edit

March 18, 2019 09:19:51

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BBU , ATNI.

Pre Open Reasonability Edit

March 18, 2019 08:37:23

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: DK , GES , IOVA , SYNA , THO.

Pre Open Reasonability Edit

March 15, 2019 09:16:50

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: DOCU , HEAR , ULTA.

Pre Open Reasonability Edit

March 15, 2019 08:45:07

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ADMP , ASNA , ASUR , AVGO , HIIQ , IRDM , KPTI , MDCA , REFR , SMTX , ZUMZ.

Pre Open Reasonability Edit

March 14, 2019 08:47:49

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ASMB , BBW , BMS , CLDR , EGAN , ESPR , GGAL , ICON , ORA , SMSI , SMTC , TLRD.

Pre Open Reasonability Edit

March 13, 2019 08:41:20

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: APEI , CARA , CLNE , OLN , SNCR , WLL.

Pre Open Reasonability Edit

March 13, 2019 08:31:05

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: SPXW.

Pre Open Reasonability Edit

March 12, 2019 08:58:17

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: SFIX.

Pre Open Reasonability Edit

March 12, 2019 08:46:28

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BA , FANH , FRO , NM , ZFGN.

Pre Open Reasonability Edit

March 11, 2019 09:02:21

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BA

Pre Open Reasonability Edit

March 11, 2019 08:36:24

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BSQR , CFX , MT.

Pre Open Reasonability Edit

March 08, 2019 09:22:09

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: EB

Pre Open Reasonability Edit

March 08, 2019 08:45:09

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALT , COST , CTRE , CYTK , ERII , FIZZ , INSY , KFY , MDCA , NSTG , NVEE , OKTA , SGYP , TRVN.

Pre Open Reasonability Edit

March 07, 2019 09:01:52

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALT, RGNX.

Pre Open Reasonability Edit

March 07, 2019 08:42:02

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CMTL, GWRE, HIIQ, JILL, NXPI, OHRP, REVG, SQM.

Pre Open Reasonability Edit

March 06, 2019 09:07:49

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: NIO , WLTW.

Pre Open Reasonability Edit

March 06, 2019 08:55:11

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALNY , AMBA , ANF , AON , AVAV , THO , ZAYO.

Pre Open Reasonability Edit

March 06, 2019 08:03:04

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

March 05, 2019 09:18:13

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  ADMS, ALGN, TGT, VRTV, WB.

Pre Open Reasonability Edit

March 05, 2019 08:51:11

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AEO, CTRP, IHF, INDL, KSS, PTR. TDW.

Pre Open Reasonability Edit

March 04, 2019 09:29:29

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: ABEO.

Pre Open Reasonability Edit

March 04, 2019 08:42:29

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CSII, FWONK, GALT, SE, WRE.

Pre Open Reasonability Edit

March 01, 2019 09:28:30

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALRM, BIO, CHIC, EBIX, FNKO, FTCH, IMGN, MGPI, SPLK, WPP, ZS.

Pre Open Reasonability Edit

March 01, 2019 09:05:31

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ESPR, FL, GPS, HABT, INGN, KIRK, NTNX, PBYI, PTLA, RETL, SRCL, TGNA, TSLA, UVE, WUBA, XON, XRAY.

Pre Open Reasonability Edit

February 28, 2019 09:20:39

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ANSS, BKNG, BID, ESTC, RGNX, SEAS, VAC.

Pre Open Reasonability Edit

February 28, 2019 08:58:28

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BOX, BSQR, BUD, CELG, CRC, CROX, CVNA, FIT, HPQ, HZNP, JCP, JD, KW, MNST, NVAX, ORBC, PRTY, RUBI, SQ, TDOC, TGTX, WBC, WIFI.

Pre Open Reasonability Edit

February 27, 2019 09:14:36

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAXN, HZNP, JAZZ, MED, SRPT, VSM.


Pre Open Reasonability Edit

February 27, 2019 08:48:14

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BBY, BGS, BNFT, DF, DY, ELF, GWPH, INGN, KPTI, MELI, MIDD, MYL, OILD, OILU, PANW, PGTI, PLNT, SE, SHOO, SMLP, TNDM, WATT, WLL, WTW.

Pre Open Reasonability Edit

February 27, 2019 08:24:59

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

February 26, 2019 09:25:09

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ASHS, AYX, MEDP, MLNT, RP, USCR, WP.

Pre Open Reasonability Edit

February 26, 2019 08:49:39

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AERI, AZO, CDEV, DDS, ETSY, GSM, HSII, HTZ, I, MNK, MOS, PRFT, RDFN, SAGE, SJM, THC, TREE, TWOU, UCTT, ZYNE. 

Pre Open Reasonability Edit

February 25, 2019 09:33:27

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CRSP, MANU, PLAN RGNX, SINA, YINN.

Pre Open Reasonability Edit

February 25, 2019 08:55:18

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ASHR, ATH, BLUE, BZUN, CHAD, CHAU, CRI, CRTO, DHR, EDIT, FENG,  JD, LABD, LABU, MOMO, OILD, OILU, ONCE, QURE, RDWR, RRGB, TEX, WB, YANG.

Pre Open Reasonability Edit

February 22, 2019 09:26:21

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAOI, APPN, BEAT, BOOM, CASA, CATM, DPLO, ORC, ROKU, WGO, Z, ZG.

Pre Open Reasonability Edit

February 22, 2019 08:41:07

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  B, BJRI, BYD, CHAU, FIX, INT, KHC, MDRX, NHTC, NVRO, OLED, STMP, SWM, TREE, TTD, UCTT, W, XOG.

Pre Open Reasonability Edit

February 21, 2019 09:17:55

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BG, CBLK, CYH, GIL, KL, PEGA, VIPS.

Pre Open Reasonability Edit

February 21, 2019 08:42:03

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALB, CAR, CNSL, DIN, DPZ, EGRX, EVTC, FARO, JACK, LOPE, MANU, MIC, NCLH, SATS, SFM.

Pre Open Reasonability Edit

February 20, 2019 09:08:33

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AJRD, CODI, CRMT, EVBG, INST, OSPN, POOL.

Pre Open Reasonability Edit

February 20, 2019 08:45:08

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAWW, BRZU, CDNS, CXO, DVN, FIVN, GRMN, HSIC, UBS, WIX.

Pre Open Reasonability Edit

February 20, 2019 07:54:08

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

February 19, 2019 09:20:46

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  CNDT, ICPT, PCG, WIN.

Pre Open Reasonability Edit

February 19, 2019 08:52:25

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ARNA, CALA, HRTX, UNIT, WTW.

Pre Open Reasonability Edit

February 19, 2019 08:46:54

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ARNA, CALA, HRTX, UNIT, WTW.

Pre Open Reasonability Edit

February 15, 2019 08:32:21

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ACET , AKAO , ANET , CAAS , CZR , LOGM , NVDA , NWL , TNET , XPO , TRUE.

Pre Open Reasonability Edit

February 14, 2019 09:13:05

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: IFF , MFGP , SNBR.

Pre Open Reasonability Edit

February 14, 2019 09:06:12

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AVX , AZN , BKD , BWA , CPA , CTL , CYBR , DUG , FOSL , HUBS , ONO , NSIT , NTAP , PTX , SIX , SWIR , TRU.

Pre Open Reasonability Edit

February 13, 2019 09:11:09

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: APTV, IAC, MDY, WYND.

Pre Open Reasonability Edit

February 13, 2019 08:48:54

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ACCO, AVX, BLL, CFX, CRAY, CRTO, CVE, DBD, DISH, IPG, LPX, LSCC, MYGN, QLYS, TEVA, TRIP, UIS.

Pre Open Reasonability Edit

February 13, 2019 08:45:49

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPX.

Pre Open Reasonability Edit

February 12, 2019 09:17:51

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: IPGP , MAS , MDGL , MIME , NKTR , PYX , RAMP , RNG , VRNS.

Pre Open Reasonability Edit

February 12, 2019 09:08:36

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRS , BRZU , CHGG , CLD , COTY , DIG , DKL , EA , ELLI , ESPR , FRO , MDSO , OILD , OILU , OMC , ONDK , POOL , PTX , SHOP , TAP , TRVN , VECO.

Pre Open Reasonability Edit

February 11, 2019 09:00:29

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CAMT, DXCM, NSP.

Pre Open Reasonability Edit

February 11, 2019 08:48:59

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BOIL, CAR, HES, KOLD, L, NUVA, RDY.

Pre Open Reasonability Edit

February 08, 2019 09:19:23

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: EGAN, FSCT, MHK, SSL, UBNT.

Pre Open Reasonability Edit

February 08, 2019 08:50:43

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BECN, BLMN, CARB, CGNX, COLM, COTY, DXC, EXPE, HAS, LGND, MAT, MDC, PSX, QNST, QRVO, QURE, RPD, SGEN, SYNA, VCRA, VSAT.

Pre Open Reasonability Edit

February 07, 2019 09:19:46

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ADS , ESTC , NXPI , SNA , TPR , TWTR , UVXY

Pre Open Reasonability Edit

February 07, 2019 09:11:24

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ADNT , AVDL , CAH , CMG , DNKN , ELGX , FCA , FEYE , HAIN , IRBT , LCI , LCII , MD , MTCH , MTN , OSUR , PRLB , SPRT , STI , USAT , ZNGA.

Pre Open Reasonability Edit

February 06, 2019 09:28:54

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ARLO, ATVI, BPMC, BRKS, BZQ, MKL, MTSI, TRVG.

Pre Open Reasonability Edit

February 06, 2019 08:39:28

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRZU, CSIQ, CSTE, EA, MCHP, PAYC, PLT, SFLY, SNAP, SWKS, TTWO, USNA, VNDA, ZEN.

Pre Open Reasonability Edit

February 06, 2019 08:20:58

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

February 05, 2019 09:10:42

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALLT , AMRS , CE , CHD , CNC , CTRL , EL , GLUU , OPK , PVH , RDWR , RL , SCHF , SCHG , SCHV , STAA , STX.

Pre Open Reasonability Edit

February 04, 2019 09:10:33

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CLX , ELLI , VGK.

Pre Open Reasonability Edit

February 04, 2019 09:02:14

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AM , AMSC , BOIL ,LN ,MTCH ,ULTI ,UPL , ZYNE.

Pre Open Reasonability Edit

February 01, 2019 09:21:17

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: EPAY.

Pre Open Reasonability Edit

February 01, 2019 09:02:09

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AMZN, BAH, CI, CLS, CYOU, DECK, FND, IDXX, KLIC, NEPT, PFPT, SYMC, TECK.

Pre Open Reasonability Edit

January 31, 2019 08:35:02

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRZU, CHTR, DISCA, DISCK, FB, FLEX, GHL, HRB, MDC, MLNX, NOW, VLO, WDAY.

Pre Open Reasonability Edit

January 30, 2019 09:41:22

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  ALGN, DFEN, EVR, RCL.

Pre Open Reasonability Edit

January 30, 2019 08:40:32

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAP, AMD, ANTM, BA, COHR, CONN, EGHT, GNTX, JNPR, MLNX, MRCY, NSTG, OSK, RTRX, SLAB, SYK, TECL, TUP.

Pre Open Reasonability Edit

January 30, 2019 08:13:05

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

January 29, 2019 09:08:29

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: HRS, HOG, TVTY.

Pre Open Reasonability Edit

January 29, 2019 08:49:00

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRZU, CE, DDD, GLW, GME, MMM, MTOR, PII, SANM, SSYS, VZ, WHR, WWD, XRX.

Pre Open Reasonability Edit

January 28, 2019 09:14:10

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BRZU, NEP, NVDA, VALE.

Pre Open Reasonability Edit

January 28, 2019 08:46:12

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ARCB, ATHM, BOIL, CAT, CHFC, DLNG, INDL, KOLD, TCF, UNG.

Pre Open Reasonability Edit

January 25, 2019 09:27:14

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ABBV, STX,

Pre Open Reasonability Edit

January 25, 2019 09:01:56

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CGC, WGP.

Pre Open Reasonability Edit

January 25, 2019 08:36:28

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: INTC, INTL, OSIS, PCG, RMD, WAL, WDC.

Pre Open Reasonability Edit

January 24, 2019 09:08:28

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AMAT, B, BG, CP, SOXL, TER.

Pre Open Reasonability Edit

January 24, 2019 08:34:47

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  AAL, AZPN, BGG, CTXS, LRCX, LUV, MKC, PTC, SLM, TXT, XLNX.



Pre Open Reasonability Edit

January 23, 2019 09:05:23

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: EHTH, IBM, POR, SINA, VIA.

Pre Open Reasonability Edit

January 23, 2019 08:55:28

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: LRN, PTCT, QSR, SYF, TSE.

Pre Open Reasonability Edit

January 23, 2019 08:40:45

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPXW.

Pre Open Reasonability Edit

January 22, 2019 09:22:17

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: EDU, OILD.

Pre Open Reasonability Edit

January 22, 2019 08:44:55

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAXN, ARNC, BAK, BOIL, DIG, EBAY, GTT, PETS, PTR, RYAAY, SWK, TGTX, UNG.

Pre Open Reasonability Edit

January 18, 2019 09:08:39

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  JBHT, VFC.

Pre Open Reasonability Edit

January 18, 2019 08:40:13

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALRM, BOIL, HRTX, KOF, NLS, TSLA.

Pre Open Reasonability Edit

January 17, 2019 09:08:53

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  CARS, SSTK.

Pre Open Reasonability Edit

January 17, 2019 08:37:21

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BOIL, FUL, OILD, PLXS, SBLK, SIG, UCO, ZFGN.

Pre Open Reasonability Edit

January 16, 2019 09:08:02

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  BAC, FISV, PCG.

Pre Open Reasonability Edit

January 16, 2019 08:35:52

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  BAM, BOIL, JWN, MERC.

Pre Open Reasonability Edit

January 16, 2019 08:25:45

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ADNT, EFII, FDC, PCB, SNAP, UAL.

Pre Open Reasonability Edit

January 16, 2019 08:03:09

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SPX.

Pre Open Reasonability Edit

January 15, 2019 09:26:25

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALNY, CVI, OILD, PPG, SHW, UTHR, VHC.

Pre Open Reasonability Edit

January 15, 2019 09:15:48

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: APRN, PCG, PLAY, SSYS.

Pre Open Reasonability Edit

January 14, 2019 09:21:34

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  ALSN, ASNA, NEM, SNV.

Pre Open Reasonability Edit

January 14, 2019 08:41:22

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ATHM, BOIL, BOOT, GCI, KOLD, PCG, PE, TA,TLRD, UNG.

Pre Open Reasonability Edit

January 11, 2019 09:11:00

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: MTN, PVH, TLRY.

Pre Open Reasonability Edit

January 11, 2019 08:33:28

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ALKS, ATHM, ATVI, LKQ, SNX, WTW.

Pre Open Reasonability Edit

January 10, 2019 09:22:54

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: RXL, WGO.

Pre Open Reasonability Edit

January 10, 2019 08:42:42

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only:  MDB.

Pre Open Reasonability Edit

January 10, 2019 08:37:32

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAL, BBBY, BBL, CXW, HEI, JWN, KSS, LB, M, URBN, YELP.

Pre Open Reasonability Edit

January 09, 2019 09:23:33

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: SGH.

Pre Open Reasonability Edit

January 09, 2019 09:14:59

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AMCX, BRZU, FMX, NEO, OILD, OSK, SCO, STE, STZ, TRNO, TTC,  WD, WOR.

Pre Open Reasonability Edit

January 09, 2019 08:44:34

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CLVS, GMED, ST, SUPN, TCBI, TDC, TGI, VIRT.

Pre Open Reasonability Edit

January 09, 2019 08:14:25

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only:  SPXW.

Pre Open Reasonability Edit

January 08, 2019 09:15:58

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAXN, CPG, MOH.

Pre Open Reasonability Edit

January 08, 2019 08:38:16

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: HCA, LKQ, MYGN, RBA, RH, UNP, VET.

Pre Open Reasonability Edit

January 07, 2019 09:21:14

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only:  BPMC, DXCM, EXAS, FANG, ICPT, LABD, LYB, NHTC, OILD, PCG, SRPT.

Pre Open Reasonability Edit

January 07, 2019 08:38:18

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: CLVS, INSM, LOXO, LXFT, NEPT, SAGE.

Pre Open Reasonability Edit

January 04, 2019 09:16:08

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: RMD, SCO, TECS, XPO.

Pre Open Reasonability Edit

January 04, 2019 08:42:24

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BBL, BOIL, CHAU, CRTO, DRIP, EPZM, ERY, ESPR, FTEC, GME, HTHT, KOLD, OILD, RPM, TGP, UVXY, W, WY, YANG, YINN.

Pre Open Reasonability Edit

January 03, 2019 09:24:58

Pre-opening price reasonability checks have been turned off for the following class on Cboe Options only: WIX.

Pre Open Reasonability Edit

January 03, 2019 09:08:15

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ARR, BGNE, CRUS, LOGI, PCRX, SBS, TECL.

Pre Open Reasonability Edit

January 03, 2019 08:38:24

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AAPL, BMY, CELG, DQ, LITE, TECL, TECS.

Pre Open Reasonability Edit

January 02, 2019 09:19:41

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: BHE , FBHS , SQQQ.

Pre Open Reasonability Edit

January 02, 2019 09:05:42

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: OILD , TQQQ.

Pre Open Reasonability Edit

January 02, 2019 09:00:13

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: ANET , BITA , MT , NTGR , QLD , SPXU , TECS , TSLA , WRE , YANG.

Pre Open Reasonability Edit

January 02, 2019 08:39:38

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: DVN , LABU , SPXL , SPXS , UVXY.