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Contract OI history

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Feb 19, 2027 EXPIRATION

SEI $57.50 Put

SEI270219P00057500

Latest saved OI18Oct 23, 2026
Last change0vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SEI $57.50 put open interest history 9 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1890 2026-10-02: 4 OI2026-10-06: 4 OI2026-10-07: 4 OI2026-10-08: 4 OI2026-10-09: 5 OI2026-10-13: 9 OI2026-10-15: 18 OI2026-10-20: 18 OI2026-10-23: 18 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

SEI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing180
Oct 20, 2026180
Oct 15, 202618+9
Oct 13, 20269+4
Oct 09, 20265+1
Oct 08, 202640
Oct 07, 202640
Oct 06, 202640
Oct 02, 20264No prior observation