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Contract OI history

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Mar 19, 2027 EXPIRATION

MDB $390.00 Call

MDB270319C00390000

Latest saved OI687Oct 23, 2026
Last change+114vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $390.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6873430 2026-10-09: 474 OI2026-10-13: 474 OI2026-10-14: 474 OI2026-10-15: 474 OI2026-10-16: 474 OI2026-10-21: 573 OI2026-10-23: 687 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, 2026687+114
Oct 21, 2026Viewing573+99
Oct 16, 20264740
Oct 15, 20264740
Oct 14, 20264740
Oct 13, 20264740
Oct 09, 2026474No prior observation