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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $490.00 Put

MSFT261120P00490000

Latest saved OI6,514Oct 23, 2026
Last change-483vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $490.00 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. 6,9973,4980 2026-10-09: 5,469 OI2026-10-13: 6,134 OI2026-10-14: 6,134 OI2026-10-15: 5,931 OI2026-10-16: 5,935 OI2026-10-21: 6,997 OI2026-10-23: 6,514 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, 2026Viewing6,514-483
Oct 21, 20266,997+1,062
Oct 16, 20265,935+4
Oct 15, 20265,931-203
Oct 14, 20266,1340
Oct 13, 20266,134+665
Oct 09, 20265,469No prior observation