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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $500.00 Put

MSFT270115P00500000

Latest saved OI7,529Oct 23, 2026
Last change+379vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $500.00 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. 7,5293,7640 2026-10-09: 6,749 OI2026-10-13: 6,814 OI2026-10-14: 6,814 OI2026-10-15: 6,910 OI2026-10-16: 7,171 OI2026-10-21: 7,150 OI2026-10-23: 7,529 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, 2026Viewing7,529+379
Oct 21, 20267,150-21
Oct 16, 20267,171+261
Oct 15, 20266,910+96
Oct 14, 20266,8140
Oct 13, 20266,814+65
Oct 09, 20266,749No prior observation