OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $535.00 Put

MSFT270115P00535000

Latest saved OI968Oct 23, 2026
Last change+7vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $535.00 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. 9684840 2026-10-09: 755 OI2026-10-13: 749 OI2026-10-14: 749 OI2026-10-15: 766 OI2026-10-16: 958 OI2026-10-21: 961 OI2026-10-23: 968 OI Oct 09, 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, 2026Viewing968+7
Oct 21, 2026961+3
Oct 16, 2026958+192
Oct 15, 2026766+17
Oct 14, 20267490
Oct 13, 2026749-6
Oct 09, 2026755No prior observation