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Contract OI history

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Nov 20, 2026 EXPIRATION

MAMA $12.50 Call

MAMA261120C00012500

Latest saved OI29Oct 23, 2026
Last change+11vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
MAMA $12.50 call open interest history 6 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 29140 2026-10-08: 10 OI2026-10-13: 10 OI2026-10-14: 10 OI2026-10-16: 12 OI2026-10-20: 18 OI2026-10-23: 29 OI Oct 08, 2026Oct 23, 2026

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

MAMA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202629+11
Oct 20, 2026Viewing18+6
Oct 16, 202612+2
Oct 14, 2026100
Oct 13, 2026100
Oct 08, 202610No prior observation