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Contract OI history

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Dec 18, 2026 EXPIRATION

MRAM $12.50 Put

MRAM261218P00012500

Latest saved OI357Oct 23, 2026
Last change+11vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
MRAM $12.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 3721860 2026-10-08: 371 OI2026-10-09: 372 OI2026-10-13: 348 OI2026-10-14: 348 OI2026-10-16: 353 OI2026-10-20: 346 OI2026-10-23: 357 OI Oct 08, 2026Oct 23, 2026

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

MRAM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing357+11
Oct 20, 2026346-7
Oct 16, 2026353+5
Oct 14, 20263480
Oct 13, 2026348-24
Oct 09, 2026372+1
Oct 08, 2026371No prior observation