OITracker Cboe delayed data

Contract OI history

Back to MSFT

Nov 20, 2026 EXPIRATION

MSFT $395.00 Put

MSFT261120P00395000

Latest saved OI2,584Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $395.00 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. 2,5841,2920 2026-10-09: 2,330 OI2026-10-13: 2,331 OI2026-10-14: 2,331 OI2026-10-15: 2,356 OI2026-10-16: 2,336 OI2026-10-21: 2,581 OI2026-10-23: 2,584 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, 2026Viewing2,584+3
Oct 21, 20262,581+245
Oct 16, 20262,336-20
Oct 15, 20262,356+25
Oct 14, 20262,3310
Oct 13, 20262,331+1
Oct 09, 20262,330No prior observation