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Contract OI history

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Jun 17, 2027 EXPIRATION

MAMA $12.50 Put

MAMA270617P00012500

Latest saved OI40Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
MAMA $12.50 put open interest history 6 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 40200 2026-10-08: 37 OI2026-10-13: 40 OI2026-10-14: 40 OI2026-10-16: 40 OI2026-10-20: 40 OI2026-10-23: 40 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, 2026400
Oct 20, 2026Viewing400
Oct 16, 2026400
Oct 14, 2026400
Oct 13, 202640+3
Oct 08, 202637No prior observation