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Contract OI history

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Nov 20, 2026 EXPIRATION

FMS $22.50 Put

FMS261120P00022500

Latest saved OI825Oct 23, 2026
Last change+596vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FMS $22.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8254120 2026-10-02: 219 OI2026-10-05: 219 OI2026-10-06: 229 OI2026-10-07: 229 OI2026-10-08: 229 OI2026-10-09: 229 OI2026-10-13: 229 OI2026-10-14: 229 OI2026-10-16: 229 OI2026-10-20: 229 OI2026-10-23: 825 OI Oct 02, 2026Oct 23, 2026

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

FMS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing825+596
Oct 20, 20262290
Oct 16, 20262290
Oct 14, 20262290
Oct 13, 20262290
Oct 09, 20262290
Oct 08, 20262290
Oct 07, 20262290
Oct 06, 2026229+10
Oct 05, 20262190
Oct 02, 2026219No prior observation