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Contract OI history

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Jan 21, 2028 EXPIRATION

SEI $15.00 Put

SEI280121P00015000

Latest saved OI15Oct 23, 2026
Last change+1vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SEI $15.00 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. 1570 2026-10-02: 14 OI2026-10-06: 14 OI2026-10-07: 14 OI2026-10-08: 14 OI2026-10-09: 14 OI2026-10-13: 14 OI2026-10-15: 14 OI2026-10-20: 14 OI2026-10-23: 15 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, 2026Viewing15+1
Oct 20, 2026140
Oct 15, 2026140
Oct 13, 2026140
Oct 09, 2026140
Oct 08, 2026140
Oct 07, 2026140
Oct 06, 2026140
Oct 02, 202614No prior observation