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Contract OI history

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Nov 06, 2026 EXPIRATION

M $21.50 Put

M261106P00021500

Latest saved OI69Oct 23, 2026
Last change+19vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $21.50 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. 69340 2026-10-02: 2 OI2026-10-05: 2 OI2026-10-06: 12 OI2026-10-07: 13 OI2026-10-08: 13 OI2026-10-09: 38 OI2026-10-13: 39 OI2026-10-14: 39 OI2026-10-15: 42 OI2026-10-16: 43 OI2026-10-21: 50 OI2026-10-23: 69 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, 2026Viewing69+19
Oct 21, 202650+7
Oct 16, 202643+1
Oct 15, 202642+3
Oct 14, 2026390
Oct 13, 202639+1
Oct 09, 202638+25
Oct 08, 2026130
Oct 07, 202613+1
Oct 06, 202612+10
Oct 05, 202620
Oct 02, 20262No prior observation