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Contract OI history

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Oct 23, 2026 EXPIRATION

M $22.50 Put

M261023P00022500

Latest saved OI223Oct 23, 2026
Last change-9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $22.50 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. 2321160 2026-10-02: 24 OI2026-10-05: 24 OI2026-10-06: 46 OI2026-10-07: 61 OI2026-10-08: 61 OI2026-10-09: 64 OI2026-10-13: 72 OI2026-10-14: 72 OI2026-10-15: 63 OI2026-10-16: 73 OI2026-10-21: 232 OI2026-10-23: 223 OI Oct 02, 2026Oct 23, 2026

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

M contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing223-9
Oct 21, 2026232+159
Oct 16, 202673+10
Oct 15, 202663-9
Oct 14, 2026720
Oct 13, 202672+8
Oct 09, 202664+3
Oct 08, 2026610
Oct 07, 202661+15
Oct 06, 202646+22
Oct 05, 2026240
Oct 02, 202624No prior observation