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Contract OI history

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Jan 21, 2028 EXPIRATION

KOS $4.00 Call

KOS280121C00004000

Latest saved OI14,929Oct 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 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. 14,9297,4640 2026-10-02: 14,176 OI2026-10-06: 14,851 OI2026-10-07: 14,852 OI2026-10-08: 14,852 OI2026-10-09: 14,852 OI2026-10-13: 14,875 OI2026-10-14: 14,876 OI2026-10-15: 14,928 OI2026-10-16: 14,928 OI2026-10-20: 14,929 OI2026-10-23: 14,929 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, 2026Viewing14,9290
Oct 20, 202614,929+1
Oct 16, 202614,9280
Oct 15, 202614,928+52
Oct 14, 202614,876+1
Oct 13, 202614,875+23
Oct 09, 202614,8520
Oct 08, 202614,8520
Oct 07, 202614,852+1
Oct 06, 202614,851+675
Oct 02, 202614,176No prior observation