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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $345.00 Put

MSFT270115P00345000

Latest saved OI2,016Oct 23, 2026
Last change+11vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $345.00 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. 2,0161,0080 2026-10-09: 1,991 OI2026-10-13: 1,994 OI2026-10-14: 1,994 OI2026-10-15: 1,998 OI2026-10-16: 1,998 OI2026-10-21: 2,005 OI2026-10-23: 2,016 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, 2026Viewing2,016+11
Oct 21, 20262,005+7
Oct 16, 20261,9980
Oct 15, 20261,998+4
Oct 14, 20261,9940
Oct 13, 20261,994+3
Oct 09, 20261,991No prior observation