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Contract OI history

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Dec 17, 2027 EXPIRATION

MSFT $530.00 Put

MSFT271217P00530000

Latest saved OI981Oct 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 $530.00 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. 9824910 2026-10-09: 980 OI2026-10-13: 980 OI2026-10-14: 980 OI2026-10-15: 981 OI2026-10-16: 981 OI2026-10-21: 982 OI2026-10-23: 981 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, 2026Viewing981-1
Oct 21, 2026982+1
Oct 16, 20269810
Oct 15, 2026981+1
Oct 14, 20269800
Oct 13, 20269800
Oct 09, 2026980No prior observation