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Contract OI history

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Oct 23, 2026 EXPIRATION

MSFT $435.00 Put

MSFT261023P00435000

Latest saved OI503Oct 23, 2026
Last change+95vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $435.00 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. 5032510 2026-10-09: 253 OI2026-10-13: 253 OI2026-10-14: 253 OI2026-10-15: 283 OI2026-10-16: 346 OI2026-10-21: 408 OI2026-10-23: 503 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, 2026Viewing503+95
Oct 21, 2026408+62
Oct 16, 2026346+63
Oct 15, 2026283+30
Oct 14, 20262530
Oct 13, 20262530
Oct 09, 2026253No prior observation