OITracker Cboe delayed data

Contract OI history

Back to FSM

Jan 15, 2027 EXPIRATION

FSM $12.50 Put

FSM270115P00012500

Latest saved OI388Oct 23, 2026
Last change+6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FSM $12.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3881940 2026-10-02: 358 OI2026-10-05: 358 OI2026-10-06: 363 OI2026-10-07: 363 OI2026-10-08: 369 OI2026-10-09: 375 OI2026-10-13: 377 OI2026-10-14: 377 OI2026-10-15: 377 OI2026-10-16: 383 OI2026-10-21: 382 OI2026-10-23: 388 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

FSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing388+6
Oct 21, 2026382-1
Oct 16, 2026383+6
Oct 15, 20263770
Oct 14, 20263770
Oct 13, 2026377+2
Oct 09, 2026375+6
Oct 08, 2026369+6
Oct 07, 20263630
Oct 06, 2026363+5
Oct 05, 20263580
Oct 02, 2026358No prior observation