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Contract OI history

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Oct 30, 2026 EXPIRATION

MDB $350.00 Put

MDB261030P00350000

Latest saved OI193Oct 23, 2026
Last change+14vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDB $350.00 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. 193960 2026-10-09: 141 OI2026-10-13: 144 OI2026-10-14: 144 OI2026-10-15: 146 OI2026-10-16: 150 OI2026-10-21: 179 OI2026-10-23: 193 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, 2026Viewing193+14
Oct 21, 2026179+29
Oct 16, 2026150+4
Oct 15, 2026146+2
Oct 14, 20261440
Oct 13, 2026144+3
Oct 09, 2026141No prior observation