OITracker Cboe delayed data

Contract OI history

Back to MSFT

Oct 26, 2026 EXPIRATION

MSFT $537.50 Call

MSFT261026C00537500

Latest saved OI667Oct 23, 2026
Last change-38vs previous saved observation
Saved market days6Oct 13, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $537.50 call open interest history 6 saved observations from 2026-10-13 to 2026-10-23. Exact values and changes are listed in the table below. 7053520 2026-10-13: 1 OI2026-10-14: 1 OI2026-10-15: 8 OI2026-10-16: 193 OI2026-10-21: 705 OI2026-10-23: 667 OI Oct 13, 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, 2026Viewing667-38
Oct 21, 2026705+512
Oct 16, 2026193+185
Oct 15, 20268+7
Oct 14, 202610
Oct 13, 20261No prior observation