OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $330.00 Put

MSFT270115P00330000

Latest saved OI5,119Oct 23, 2026
Last change-10vs 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. 5,1412,5700 2026-10-09: 5,125 OI2026-10-13: 5,135 OI2026-10-14: 5,135 OI2026-10-15: 5,140 OI2026-10-16: 5,141 OI2026-10-21: 5,129 OI2026-10-23: 5,119 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, 2026Viewing5,119-10
Oct 21, 20265,129-12
Oct 16, 20265,141+1
Oct 15, 20265,140+5
Oct 14, 20265,1350
Oct 13, 20265,135+10
Oct 09, 20265,125No prior observation