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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $455.00 Put

MSFT261120P00455000

Latest saved OI4,705Oct 23, 2026
Last change-35vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $455.00 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. 7,2613,6300 2026-10-09: 7,261 OI2026-10-13: 5,337 OI2026-10-14: 5,337 OI2026-10-15: 5,309 OI2026-10-16: 5,297 OI2026-10-21: 4,740 OI2026-10-23: 4,705 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, 2026Viewing4,705-35
Oct 21, 20264,740-557
Oct 16, 20265,297-12
Oct 15, 20265,309-28
Oct 14, 20265,3370
Oct 13, 20265,337-1,924
Oct 09, 20267,261No prior observation