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Contract OI history

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Mar 19, 2027 EXPIRATION

MDB $370.00 Put

MDB270319P00370000

Latest saved OI171Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $370.00 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. 172860 2026-10-09: 166 OI2026-10-13: 166 OI2026-10-14: 166 OI2026-10-15: 172 OI2026-10-16: 172 OI2026-10-21: 172 OI2026-10-23: 171 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, 2026171-1
Oct 21, 2026Viewing1720
Oct 16, 20261720
Oct 15, 2026172+6
Oct 14, 20261660
Oct 13, 20261660
Oct 09, 2026166No prior observation