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Contract OI history

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Oct 23, 2026 EXPIRATION

M $21.50 Call

M261023C00021500

Latest saved OI61Oct 23, 2026
Last change+8vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $21.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 61300 2026-10-02: 3 OI2026-10-05: 3 OI2026-10-06: 10 OI2026-10-07: 22 OI2026-10-08: 22 OI2026-10-09: 22 OI2026-10-13: 36 OI2026-10-14: 36 OI2026-10-15: 37 OI2026-10-16: 37 OI2026-10-21: 53 OI2026-10-23: 61 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, 2026Viewing61+8
Oct 21, 202653+16
Oct 16, 2026370
Oct 15, 202637+1
Oct 14, 2026360
Oct 13, 202636+14
Oct 09, 2026220
Oct 08, 2026220
Oct 07, 202622+12
Oct 06, 202610+7
Oct 05, 202630
Oct 02, 20263No prior observation