OITracker Cboe delayed data

Contract OI history

Back to MSFT

Oct 23, 2026 EXPIRATION

MSFT $532.50 Put

MSFT261023P00532500

Latest saved OI1,292Oct 23, 2026
Last change+115vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $532.50 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. 1,3416700 2026-10-09: 122 OI2026-10-13: 1,341 OI2026-10-14: 1,341 OI2026-10-15: 1,020 OI2026-10-16: 1,049 OI2026-10-21: 1,177 OI2026-10-23: 1,292 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, 2026Viewing1,292+115
Oct 21, 20261,177+128
Oct 16, 20261,049+29
Oct 15, 20261,020-321
Oct 14, 20261,3410
Oct 13, 20261,341+1,219
Oct 09, 2026122No prior observation