OITracker Cboe delayed data

Contract OI history

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Nov 06, 2026 EXPIRATION

MSFT $515.00 Put

MSFT261106P00515000

Latest saved OI430Oct 23, 2026
Last change-31vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $515.00 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. 5242620 2026-10-09: 328 OI2026-10-13: 514 OI2026-10-14: 514 OI2026-10-15: 524 OI2026-10-16: 521 OI2026-10-21: 461 OI2026-10-23: 430 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, 2026Viewing430-31
Oct 21, 2026461-60
Oct 16, 2026521-3
Oct 15, 2026524+10
Oct 14, 20265140
Oct 13, 2026514+186
Oct 09, 2026328No prior observation