Please be advised that due to a system issue, FLEX SPX AIM orders are currently being rejected by the Cboe Options ("C1" or "the Exchange") system. To address this issue, SPX AIM will be systematically enabled on C1 for the remainder of today, Monday June 29, 2020. However, the Exchange is not permitting AIM for SPX, and TPHs are advised not to submit non-FLEX SPX AIM orders. While such orders will not be rejected, the submission of such orders may be a regulatory rule violation and any resulting trades may be busted.
Please contact the Cboe Trade Desk with any questions.
Cboe Trade Desk