OITracker Cboe delayed data

Contract OI history

Back to MSFT

Dec 17, 2027 EXPIRATION

MSFT $340.00 Call

MSFT271217C00340000

Latest saved OI263Oct 23, 2026
Last change-9vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $340.00 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. 2721360 2026-10-09: 250 OI2026-10-13: 250 OI2026-10-14: 250 OI2026-10-15: 250 OI2026-10-16: 272 OI2026-10-21: 272 OI2026-10-23: 263 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, 2026Viewing263-9
Oct 21, 20262720
Oct 16, 2026272+22
Oct 15, 20262500
Oct 14, 20262500
Oct 13, 20262500
Oct 09, 2026250No prior observation