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Contract OI history

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Jan 15, 2027 EXPIRATION

KOS $4.00 Put

KOS270115P00004000

Latest saved OI566Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
KOS $4.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5662830 2026-10-02: 566 OI2026-10-06: 566 OI2026-10-07: 566 OI2026-10-08: 566 OI2026-10-09: 566 OI2026-10-13: 566 OI2026-10-14: 566 OI2026-10-15: 566 OI2026-10-16: 566 OI2026-10-20: 566 OI2026-10-23: 566 OI Oct 02, 2026Oct 23, 2026

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

KOS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5660
Oct 20, 20265660
Oct 16, 20265660
Oct 15, 20265660
Oct 14, 20265660
Oct 13, 20265660
Oct 09, 20265660
Oct 08, 20265660
Oct 07, 20265660
Oct 06, 20265660
Oct 02, 2026566No prior observation