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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $180.00 Put

MSFT270115P00180000

Latest saved OI223Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $180.00 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. 2481240 2026-10-09: 243 OI2026-10-13: 243 OI2026-10-14: 243 OI2026-10-15: 244 OI2026-10-16: 248 OI2026-10-21: 223 OI2026-10-23: 223 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, 2026Viewing2230
Oct 21, 2026223-25
Oct 16, 2026248+4
Oct 15, 2026244+1
Oct 14, 20262430
Oct 13, 20262430
Oct 09, 2026243No prior observation