OITracker Cboe delayed data

Contract OI history

Back to MSFT

Jun 16, 2028 EXPIRATION

MSFT $300.00 Put

MSFT280616P00300000

Latest saved OI3,600Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $300.00 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. 3,6021,8010 2026-10-09: 3,566 OI2026-10-13: 3,595 OI2026-10-14: 3,595 OI2026-10-15: 3,595 OI2026-10-16: 3,602 OI2026-10-21: 3,602 OI2026-10-23: 3,600 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, 2026Viewing3,600-2
Oct 21, 20263,6020
Oct 16, 20263,602+7
Oct 15, 20263,5950
Oct 14, 20263,5950
Oct 13, 20263,595+29
Oct 09, 20263,566No prior observation