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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $510.00 Put

MSFT261120P00510000

Latest saved OI4,732Oct 23, 2026
Last change-24vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $510.00 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. 5,1432,5710 2026-10-09: 4,931 OI2026-10-13: 5,012 OI2026-10-14: 5,012 OI2026-10-15: 5,143 OI2026-10-16: 4,750 OI2026-10-21: 4,756 OI2026-10-23: 4,732 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, 2026Viewing4,732-24
Oct 21, 20264,756+6
Oct 16, 20264,750-393
Oct 15, 20265,143+131
Oct 14, 20265,0120
Oct 13, 20265,012+81
Oct 09, 20264,931No prior observation