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Contract OI history

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Nov 20, 2026 EXPIRATION

MDB $380.00 Put

MDB261120P00380000

Latest saved OI241Oct 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 $380.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2451220 2026-10-09: 219 OI2026-10-13: 231 OI2026-10-14: 231 OI2026-10-15: 231 OI2026-10-16: 245 OI2026-10-21: 244 OI2026-10-23: 241 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, 2026Viewing241-3
Oct 21, 2026244-1
Oct 16, 2026245+14
Oct 15, 20262310
Oct 14, 20262310
Oct 13, 2026231+12
Oct 09, 2026219No prior observation