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Contract OI history

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Dec 18, 2026 EXPIRATION

MSFT $505.00 Call

MSFT261218C00505000

Latest saved OI1,294Oct 23, 2026
Last change-34vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $505.00 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. 1,3736860 2026-10-09: 1,338 OI2026-10-13: 1,373 OI2026-10-14: 1,373 OI2026-10-15: 1,361 OI2026-10-16: 1,362 OI2026-10-21: 1,328 OI2026-10-23: 1,294 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, 2026Viewing1,294-34
Oct 21, 20261,328-34
Oct 16, 20261,362+1
Oct 15, 20261,361-12
Oct 14, 20261,3730
Oct 13, 20261,373+35
Oct 09, 20261,338No prior observation