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Contract OI history

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Mar 19, 2027 EXPIRATION

MSFT $230.00 Put

MSFT270319P00230000

Latest saved OI547Oct 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 $230.00 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. 5632810 2026-10-09: 563 OI2026-10-13: 563 OI2026-10-14: 563 OI2026-10-15: 563 OI2026-10-16: 545 OI2026-10-21: 547 OI2026-10-23: 547 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, 2026Viewing5470
Oct 21, 2026547+2
Oct 16, 2026545-18
Oct 15, 20265630
Oct 14, 20265630
Oct 13, 20265630
Oct 09, 2026563No prior observation