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Contract OI history

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Nov 20, 2026 EXPIRATION

FMS $20.00 Put

FMS261120P00020000

Latest saved OI794Oct 23, 2026
Last change+649vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FMS $20.00 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. 7943970 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 140 OI2026-10-07: 170 OI2026-10-08: 171 OI2026-10-09: 145 OI2026-10-13: 145 OI2026-10-14: 145 OI2026-10-16: 145 OI2026-10-20: 145 OI2026-10-23: 794 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, 2026Viewing794+649
Oct 20, 20261450
Oct 16, 20261450
Oct 14, 20261450
Oct 13, 20261450
Oct 09, 2026145-26
Oct 08, 2026171+1
Oct 07, 2026170+30
Oct 06, 2026140+140
Oct 05, 202600
Oct 02, 20260No prior observation