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Contract OI history

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Dec 18, 2026 EXPIRATION

MRAM $17.50 Put

MRAM261218P00017500

Latest saved OI328Oct 23, 2026
Last change-5vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
MRAM $17.50 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. 3571780 2026-10-08: 325 OI2026-10-09: 325 OI2026-10-13: 355 OI2026-10-14: 356 OI2026-10-16: 357 OI2026-10-20: 333 OI2026-10-23: 328 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, 2026Viewing328-5
Oct 20, 2026333-24
Oct 16, 2026357+1
Oct 14, 2026356+1
Oct 13, 2026355+30
Oct 09, 20263250
Oct 08, 2026325No prior observation