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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $200.00 Put

MSFT270115P00200000

Latest saved OI1,991Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $200.00 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. 1,9919950 2026-10-09: 1,979 OI2026-10-13: 1,982 OI2026-10-14: 1,982 OI2026-10-15: 1,982 OI2026-10-16: 1,983 OI2026-10-21: 1,991 OI2026-10-23: 1,991 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, 2026Viewing1,9910
Oct 21, 20261,991+8
Oct 16, 20261,983+1
Oct 15, 20261,9820
Oct 14, 20261,9820
Oct 13, 20261,982+3
Oct 09, 20261,979No prior observation