OITracker Cboe delayed data

Contract OI history

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Jan 19, 2029 EXPIRATION

MSFT $330.00 Put

MSFT290119P00330000

Latest saved OI1,130Oct 23, 2026
Last change+341vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $330.00 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. 1,1305650 2026-10-09: 789 OI2026-10-13: 790 OI2026-10-14: 790 OI2026-10-15: 789 OI2026-10-16: 788 OI2026-10-21: 789 OI2026-10-23: 1,130 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, 2026Viewing1,130+341
Oct 21, 2026789+1
Oct 16, 2026788-1
Oct 15, 2026789-1
Oct 14, 20267900
Oct 13, 2026790+1
Oct 09, 2026789No prior observation