OITracker Cboe delayed data

Contract OI history

Back to MSFT

Oct 23, 2026 EXPIRATION

MSFT $535.00 Call

MSFT261023C00535000

Latest saved OI6,458Oct 23, 2026
Last change+709vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $535.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6,4583,2290 2026-10-09: 2,428 OI2026-10-13: 2,167 OI2026-10-14: 2,167 OI2026-10-15: 2,448 OI2026-10-16: 2,480 OI2026-10-21: 5,749 OI2026-10-23: 6,458 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, 2026Viewing6,458+709
Oct 21, 20265,749+3,269
Oct 16, 20262,480+32
Oct 15, 20262,448+281
Oct 14, 20262,1670
Oct 13, 20262,167-261
Oct 09, 20262,428No prior observation