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Contract OI history

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Jun 17, 2027 EXPIRATION

MDB $390.00 Put

MDB270617P00390000

Latest saved OI102Oct 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 $390.00 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. 102510 2026-10-09: 101 OI2026-10-13: 99 OI2026-10-14: 99 OI2026-10-15: 99 OI2026-10-16: 99 OI2026-10-21: 99 OI2026-10-23: 102 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, 2026102+3
Oct 21, 2026Viewing990
Oct 16, 2026990
Oct 15, 2026990
Oct 14, 2026990
Oct 13, 202699-2
Oct 09, 2026101No prior observation