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Contract OI history

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Dec 18, 2026 EXPIRATION

MDB $420.00 Call

MDB261218C00420000

Latest saved OI365Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $420.00 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. 3951970 2026-10-09: 385 OI2026-10-13: 390 OI2026-10-14: 390 OI2026-10-15: 395 OI2026-10-16: 368 OI2026-10-21: 368 OI2026-10-23: 365 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, 2026Viewing365-3
Oct 21, 20263680
Oct 16, 2026368-27
Oct 15, 2026395+5
Oct 14, 20263900
Oct 13, 2026390+5
Oct 09, 2026385No prior observation