OITracker Cboe delayed data

Contract OI history

Back to KOS

Jan 15, 2027 EXPIRATION

KOS $2.50 Put

KOS270115P00002500

Latest saved OI17,996Oct 23, 2026
Last change+58vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
KOS $2.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 17,9968,9980 2026-10-02: 17,335 OI2026-10-06: 17,358 OI2026-10-07: 17,343 OI2026-10-08: 17,362 OI2026-10-09: 17,362 OI2026-10-13: 17,856 OI2026-10-14: 17,812 OI2026-10-15: 17,905 OI2026-10-16: 17,915 OI2026-10-20: 17,938 OI2026-10-23: 17,996 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, 2026Viewing17,996+58
Oct 20, 202617,938+23
Oct 16, 202617,915+10
Oct 15, 202617,905+93
Oct 14, 202617,812-44
Oct 13, 202617,856+494
Oct 09, 202617,3620
Oct 08, 202617,362+19
Oct 07, 202617,343-15
Oct 06, 202617,358+23
Oct 02, 202617,335No prior observation