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Contract OI history

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Nov 06, 2026 EXPIRATION

MSFT $540.00 Put

MSFT261106P00540000

Latest saved OI589Oct 23, 2026
Last change+5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $540.00 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. 5892940 2026-10-09: 124 OI2026-10-13: 463 OI2026-10-14: 463 OI2026-10-15: 462 OI2026-10-16: 585 OI2026-10-21: 584 OI2026-10-23: 589 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, 2026Viewing589+5
Oct 21, 2026584-1
Oct 16, 2026585+123
Oct 15, 2026462-1
Oct 14, 20264630
Oct 13, 2026463+339
Oct 09, 2026124No prior observation