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Contract OI history

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Oct 23, 2026 EXPIRATION

MDB $370.00 Put

MDB261023P00370000

Latest saved OI543Oct 23, 2026
Last change+477vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $370.00 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. 5432710 2026-10-09: 34 OI2026-10-13: 39 OI2026-10-14: 39 OI2026-10-15: 44 OI2026-10-16: 51 OI2026-10-21: 66 OI2026-10-23: 543 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, 2026Viewing543+477
Oct 21, 202666+15
Oct 16, 202651+7
Oct 15, 202644+5
Oct 14, 2026390
Oct 13, 202639+5
Oct 09, 202634No prior observation