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Contract OI history

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Apr 16, 2027 EXPIRATION

KOS $3.50 Call

KOS270416C00003500

Latest saved OI991Oct 23, 2026
Last change+2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
KOS $3.50 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 9914950 2026-10-02: 932 OI2026-10-06: 932 OI2026-10-07: 932 OI2026-10-08: 932 OI2026-10-09: 932 OI2026-10-13: 946 OI2026-10-14: 946 OI2026-10-15: 973 OI2026-10-16: 976 OI2026-10-20: 989 OI2026-10-23: 991 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, 2026Viewing991+2
Oct 20, 2026989+13
Oct 16, 2026976+3
Oct 15, 2026973+27
Oct 14, 20269460
Oct 13, 2026946+14
Oct 09, 20269320
Oct 08, 20269320
Oct 07, 20269320
Oct 06, 20269320
Oct 02, 2026932No prior observation