OITracker Cboe delayed data

Contract OI history

Back to MDB

Oct 30, 2026 EXPIRATION

MDB $270.00 Put

MDB261030P00270000

Latest saved OI127Oct 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 $270.00 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. 127630 2026-10-09: 110 OI2026-10-13: 110 OI2026-10-14: 110 OI2026-10-15: 110 OI2026-10-16: 110 OI2026-10-21: 119 OI2026-10-23: 127 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, 2026127+8
Oct 21, 2026Viewing119+9
Oct 16, 20261100
Oct 15, 20261100
Oct 14, 20261100
Oct 13, 20261100
Oct 09, 2026110No prior observation