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Contract OI history

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Nov 20, 2026 EXPIRATION

FSM $10.00 Put

FSM261120P00010000

Latest saved OI1,024Oct 23, 2026
Last change+49vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FSM $10.00 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. 1,0245120 2026-10-02: 401 OI2026-10-05: 411 OI2026-10-06: 433 OI2026-10-07: 433 OI2026-10-08: 542 OI2026-10-09: 552 OI2026-10-13: 621 OI2026-10-14: 825 OI2026-10-15: 903 OI2026-10-16: 918 OI2026-10-21: 975 OI2026-10-23: 1,024 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, 2026Viewing1,024+49
Oct 21, 2026975+57
Oct 16, 2026918+15
Oct 15, 2026903+78
Oct 14, 2026825+204
Oct 13, 2026621+69
Oct 09, 2026552+10
Oct 08, 2026542+109
Oct 07, 20264330
Oct 06, 2026433+22
Oct 05, 2026411+10
Oct 02, 2026401No prior observation