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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $510.00 Put

MSFT270115P00510000

Latest saved OI2,721Oct 23, 2026
Last change-15vs 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. 2,7361,3680 2026-10-09: 2,233 OI2026-10-13: 2,404 OI2026-10-14: 2,404 OI2026-10-15: 2,411 OI2026-10-16: 2,464 OI2026-10-21: 2,736 OI2026-10-23: 2,721 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, 2026Viewing2,721-15
Oct 21, 20262,736+272
Oct 16, 20262,464+53
Oct 15, 20262,411+7
Oct 14, 20262,4040
Oct 13, 20262,404+171
Oct 09, 20262,233No prior observation