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Contract OI history

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Jan 21, 2028 EXPIRATION

KOS $4.50 Call

KOS280121C00004500

Latest saved OI53Oct 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 $4.50 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. 53260 2026-10-02: 50 OI2026-10-06: 50 OI2026-10-07: 50 OI2026-10-08: 51 OI2026-10-09: 51 OI2026-10-13: 51 OI2026-10-14: 51 OI2026-10-15: 51 OI2026-10-16: 51 OI2026-10-20: 51 OI2026-10-23: 53 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, 2026Viewing53+2
Oct 20, 2026510
Oct 16, 2026510
Oct 15, 2026510
Oct 14, 2026510
Oct 13, 2026510
Oct 09, 2026510
Oct 08, 202651+1
Oct 07, 2026500
Oct 06, 2026500
Oct 02, 202650No prior observation