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Contract OI history

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Jan 21, 2028 EXPIRATION

KOS $2.50 Call

KOS280121C00002500

Latest saved OI6,604Oct 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 $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. 6,6233,3110 2026-10-02: 6,585 OI2026-10-06: 6,600 OI2026-10-07: 6,604 OI2026-10-08: 6,606 OI2026-10-09: 6,606 OI2026-10-13: 6,612 OI2026-10-14: 6,612 OI2026-10-15: 6,612 OI2026-10-16: 6,623 OI2026-10-20: 6,604 OI2026-10-23: 6,604 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, 2026Viewing6,6040
Oct 20, 20266,604-19
Oct 16, 20266,623+11
Oct 15, 20266,6120
Oct 14, 20266,6120
Oct 13, 20266,612+6
Oct 09, 20266,6060
Oct 08, 20266,606+2
Oct 07, 20266,604+4
Oct 06, 20266,600+15
Oct 02, 20266,585No prior observation