OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $515.00 Put

MSFT270115P00515000

Latest saved OI1,031Oct 23, 2026
Last change+39vs 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. 1,0315150 2026-10-09: 881 OI2026-10-13: 895 OI2026-10-14: 895 OI2026-10-15: 968 OI2026-10-16: 962 OI2026-10-21: 992 OI2026-10-23: 1,031 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, 2026Viewing1,031+39
Oct 21, 2026992+30
Oct 16, 2026962-6
Oct 15, 2026968+73
Oct 14, 20268950
Oct 13, 2026895+14
Oct 09, 2026881No prior observation