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Contract OI history

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Oct 23, 2026 EXPIRATION

MSFT $537.50 Call

MSFT261023C00537500

Latest saved OI3,547Oct 23, 2026
Last change+1,219vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $537.50 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. 3,5471,7730 2026-10-09: 328 OI2026-10-13: 1,170 OI2026-10-14: 1,170 OI2026-10-15: 1,208 OI2026-10-16: 1,216 OI2026-10-21: 2,328 OI2026-10-23: 3,547 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, 2026Viewing3,547+1,219
Oct 21, 20262,328+1,112
Oct 16, 20261,216+8
Oct 15, 20261,208+38
Oct 14, 20261,1700
Oct 13, 20261,170+842
Oct 09, 2026328No prior observation