Reasonability Notices

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Last Updated 10:36:54 GMT

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.