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Contract OI history

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Oct 23, 2026 EXPIRATION

MDB $357.50 Put

MDB261023P00357500

Latest saved OI188Oct 23, 2026
Last change+44vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $357.50 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. 188940 2026-10-09: 77 OI2026-10-13: 138 OI2026-10-14: 138 OI2026-10-15: 137 OI2026-10-16: 143 OI2026-10-21: 144 OI2026-10-23: 188 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, 2026Viewing188+44
Oct 21, 2026144+1
Oct 16, 2026143+6
Oct 15, 2026137-1
Oct 14, 20261380
Oct 13, 2026138+61
Oct 09, 202677No prior observation