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Contract OI history

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Jan 15, 2027 EXPIRATION

MDB $420.00 Call

MDB270115C00420000

Latest saved OI250Oct 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 $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. 2571280 2026-10-09: 249 OI2026-10-13: 253 OI2026-10-14: 253 OI2026-10-15: 257 OI2026-10-16: 255 OI2026-10-21: 236 OI2026-10-23: 250 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, 2026250+14
Oct 21, 2026Viewing236-19
Oct 16, 2026255-2
Oct 15, 2026257+4
Oct 14, 20262530
Oct 13, 2026253+4
Oct 09, 2026249No prior observation