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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $370.00 Put

MSFT261120P00370000

Latest saved OI5,431Oct 23, 2026
Last change+974vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $370.00 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. 5,4312,7150 2026-10-09: 4,455 OI2026-10-13: 4,452 OI2026-10-14: 4,452 OI2026-10-15: 4,440 OI2026-10-16: 4,445 OI2026-10-21: 4,457 OI2026-10-23: 5,431 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, 2026Viewing5,431+974
Oct 21, 20264,457+12
Oct 16, 20264,445+5
Oct 15, 20264,440-12
Oct 14, 20264,4520
Oct 13, 20264,452-3
Oct 09, 20264,455No prior observation