OITracker Cboe delayed data

Contract OI history

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Nov 02, 2026 EXPIRATION

MSFT $530.00 Put

MSFT261102P00530000

Latest saved OI2,134Oct 23, 2026
Last change+1,085vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $530.00 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 2,1341,0670 2026-10-21: 1,049 OI2026-10-23: 2,134 OI Oct 21, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MSFT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,134+1,085
Oct 21, 20261,049No prior observation