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Contract OI history

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Jun 17, 2027 EXPIRATION

MSFT $390.00 Put

MSFT270617P00390000

Latest saved OI2,858Oct 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 $390.00 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. 2,8741,4370 2026-10-09: 2,874 OI2026-10-13: 2,871 OI2026-10-14: 2,871 OI2026-10-15: 2,858 OI2026-10-16: 2,858 OI2026-10-21: 2,858 OI2026-10-23: 2,858 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, 2026Viewing2,8580
Oct 21, 20262,8580
Oct 16, 20262,8580
Oct 15, 20262,858-13
Oct 14, 20262,8710
Oct 13, 20262,871-3
Oct 09, 20262,874No prior observation