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Contract OI history

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Jan 15, 2027 EXPIRATION

MDB $340.00 Put

MDB270115P00340000

Latest saved OI517Oct 23, 2026
Last change+8vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $340.00 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. 5172580 2026-10-09: 137 OI2026-10-13: 502 OI2026-10-14: 502 OI2026-10-15: 506 OI2026-10-16: 506 OI2026-10-21: 509 OI2026-10-23: 517 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, 2026517+8
Oct 21, 2026Viewing509+3
Oct 16, 20265060
Oct 15, 2026506+4
Oct 14, 20265020
Oct 13, 2026502+365
Oct 09, 2026137No prior observation