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Contract OI history

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Dec 17, 2027 EXPIRATION

MSFT $510.00 Put

MSFT271217P00510000

Latest saved OI702Oct 23, 2026
Last change+1vs 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. 7023510 2026-10-09: 674 OI2026-10-13: 673 OI2026-10-14: 673 OI2026-10-15: 701 OI2026-10-16: 701 OI2026-10-21: 701 OI2026-10-23: 702 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, 2026Viewing702+1
Oct 21, 20267010
Oct 16, 20267010
Oct 15, 2026701+28
Oct 14, 20266730
Oct 13, 2026673-1
Oct 09, 2026674No prior observation