OITracker Cboe delayed data

Contract OI history

Back to MSFT

Dec 15, 2028 EXPIRATION

MSFT $500.00 Put

MSFT281215P00500000

Latest saved OI752Oct 23, 2026
Last change+92vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $500.00 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. 7523760 2026-10-09: 637 OI2026-10-13: 642 OI2026-10-14: 642 OI2026-10-15: 635 OI2026-10-16: 635 OI2026-10-21: 660 OI2026-10-23: 752 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, 2026Viewing752+92
Oct 21, 2026660+25
Oct 16, 20266350
Oct 15, 2026635-7
Oct 14, 20266420
Oct 13, 2026642+5
Oct 09, 2026637No prior observation