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Contract OI history

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Oct 30, 2026 EXPIRATION

MSFT $510.00 Put

MSFT261030P00510000

Latest saved OI1,224Oct 23, 2026
Last change+215vs 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. 1,2246120 2026-10-09: 563 OI2026-10-13: 648 OI2026-10-14: 648 OI2026-10-15: 714 OI2026-10-16: 712 OI2026-10-21: 1,009 OI2026-10-23: 1,224 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, 2026Viewing1,224+215
Oct 21, 20261,009+297
Oct 16, 2026712-2
Oct 15, 2026714+66
Oct 14, 20266480
Oct 13, 2026648+85
Oct 09, 2026563No prior observation