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Contract OI history

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Jun 17, 2027 EXPIRATION

MDB $390.00 Call

MDB270617C00390000

Latest saved OI278Oct 23, 2026
Last change+14vs 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. 2781390 2026-10-09: 156 OI2026-10-13: 156 OI2026-10-14: 156 OI2026-10-15: 164 OI2026-10-16: 164 OI2026-10-21: 264 OI2026-10-23: 278 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, 2026278+14
Oct 21, 2026Viewing264+100
Oct 16, 20261640
Oct 15, 2026164+8
Oct 14, 20261560
Oct 13, 20261560
Oct 09, 2026156No prior observation