OITracker Cboe delayed data

Contract OI history

Back to KOS

Jan 15, 2027 EXPIRATION

KOS $2.50 Call

KOS270115C00002500

Latest saved OI18,508Oct 23, 2026
Last change-492vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
KOS $2.50 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. 19,0009,5000 2026-10-02: 16,415 OI2026-10-06: 16,419 OI2026-10-07: 16,422 OI2026-10-08: 16,459 OI2026-10-09: 16,459 OI2026-10-13: 16,477 OI2026-10-14: 15,594 OI2026-10-15: 15,628 OI2026-10-16: 17,064 OI2026-10-20: 19,000 OI2026-10-23: 18,508 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, 2026Viewing18,508-492
Oct 20, 202619,000+1,936
Oct 16, 202617,064+1,436
Oct 15, 202615,628+34
Oct 14, 202615,594-883
Oct 13, 202616,477+18
Oct 09, 202616,4590
Oct 08, 202616,459+37
Oct 07, 202616,422+3
Oct 06, 202616,419+4
Oct 02, 202616,415No prior observation