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Contract OI history

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May 21, 2027 EXPIRATION

MDB $380.00 Call

MDB270521C00380000

Latest saved OI146Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $380.00 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. 148740 2026-10-09: 148 OI2026-10-13: 148 OI2026-10-14: 148 OI2026-10-15: 148 OI2026-10-16: 148 OI2026-10-21: 146 OI2026-10-23: 146 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, 20261460
Oct 21, 2026Viewing146-2
Oct 16, 20261480
Oct 15, 20261480
Oct 14, 20261480
Oct 13, 20261480
Oct 09, 2026148No prior observation