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Contract OI history

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Dec 18, 2026 EXPIRATION

MDB $380.00 Put

MDB261218P00380000

Latest saved OI1,115Oct 23, 2026
Last change-10vs 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. 1,1575780 2026-10-09: 1,157 OI2026-10-13: 1,126 OI2026-10-14: 1,126 OI2026-10-15: 1,126 OI2026-10-16: 1,126 OI2026-10-21: 1,125 OI2026-10-23: 1,115 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, 20261,115-10
Oct 21, 2026Viewing1,125-1
Oct 16, 20261,1260
Oct 15, 20261,1260
Oct 14, 20261,1260
Oct 13, 20261,126-31
Oct 09, 20261,157No prior observation