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Contract OI history

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Dec 18, 2026 EXPIRATION

KOS $2.50 Call

KOS261218C00002500

Latest saved OI41Oct 23, 2026
Last change+10vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
KOS $2.50 call open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 41200 2026-10-15: 0 OI2026-10-16: 0 OI2026-10-20: 31 OI2026-10-23: 41 OI Oct 15, 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, 2026Viewing41+10
Oct 20, 202631+31
Oct 16, 202600
Oct 15, 20260No prior observation