MIAX Options will remove the availability of the Fill-or-Kill (“FOK”) message type as outlined below.
- On Monday, 4/12, FOK orders will be rejected on Cloud 21.
- On Tuesday, 4/13, FOK orders will be rejected on Clouds 18-20.
- On Wednesday, 4/14, FOK orders will be rejected on Clouds 1-8.
- On Thursday, 4/15, FOK orders will be rejected on Clouds 9-17 and 22-24.
Please refer to MIAX Options Regulatory Circular 2021-21 for more information.