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Contract OI history

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Oct 26, 2026 EXPIRATION

MSFT $525.00 Put

MSFT261026P00525000

Latest saved OI529Oct 23, 2026
Last change+153vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $525.00 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. 5292640 2026-10-09: 0 OI2026-10-13: 67 OI2026-10-14: 67 OI2026-10-15: 132 OI2026-10-16: 130 OI2026-10-21: 376 OI2026-10-23: 529 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, 2026Viewing529+153
Oct 21, 2026376+246
Oct 16, 2026130-2
Oct 15, 2026132+65
Oct 14, 2026670
Oct 13, 202667+67
Oct 09, 20260No prior observation