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Contract OI history

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Nov 06, 2026 EXPIRATION

MDB $355.00 Put

MDB261106P00355000

Latest saved OI322Oct 23, 2026
Last change-6vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $355.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3281640 2026-10-09: 40 OI2026-10-13: 40 OI2026-10-14: 40 OI2026-10-15: 328 OI2026-10-16: 328 OI2026-10-21: 328 OI2026-10-23: 322 OI Oct 09, 2026Oct 23, 2026

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

MDB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026322-6
Oct 21, 2026Viewing3280
Oct 16, 20263280
Oct 15, 2026328+288
Oct 14, 2026400
Oct 13, 2026400
Oct 09, 202640No prior observation