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Contract OI history

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Nov 20, 2026 EXPIRATION

MDB $290.00 Put

MDB261120P00290000

Latest saved OI1,179Oct 23, 2026
Last change+21vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $290.00 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. 1,1795890 2026-10-09: 1,165 OI2026-10-13: 1,150 OI2026-10-14: 1,150 OI2026-10-15: 1,149 OI2026-10-16: 1,149 OI2026-10-21: 1,158 OI2026-10-23: 1,179 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, 20261,179+21
Oct 21, 2026Viewing1,158+9
Oct 16, 20261,1490
Oct 15, 20261,149-1
Oct 14, 20261,1500
Oct 13, 20261,150-15
Oct 09, 20261,165No prior observation