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Contract OI history

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Dec 18, 2026 EXPIRATION

MDB $250.00 Put

MDB261218P00250000

Latest saved OI1,389Oct 23, 2026
Last change-15vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $250.00 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. 1,4417200 2026-10-09: 1,441 OI2026-10-13: 1,416 OI2026-10-14: 1,416 OI2026-10-15: 1,413 OI2026-10-16: 1,411 OI2026-10-21: 1,404 OI2026-10-23: 1,389 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, 20261,389-15
Oct 21, 2026Viewing1,404-7
Oct 16, 20261,411-2
Oct 15, 20261,413-3
Oct 14, 20261,4160
Oct 13, 20261,416-25
Oct 09, 20261,441No prior observation