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Contract OI history

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Mar 19, 2027 EXPIRATION

FSM $10.00 Put

FSM270319P00010000

Latest saved OI455Oct 23, 2026
Last change+7vs 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. 4552270 2026-10-02: 345 OI2026-10-05: 345 OI2026-10-06: 341 OI2026-10-07: 341 OI2026-10-08: 443 OI2026-10-09: 443 OI2026-10-13: 448 OI2026-10-14: 448 OI2026-10-15: 448 OI2026-10-16: 448 OI2026-10-21: 448 OI2026-10-23: 455 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, 2026Viewing455+7
Oct 21, 20264480
Oct 16, 20264480
Oct 15, 20264480
Oct 14, 20264480
Oct 13, 2026448+5
Oct 09, 20264430
Oct 08, 2026443+102
Oct 07, 20263410
Oct 06, 2026341-4
Oct 05, 20263450
Oct 02, 2026345No prior observation