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Contract OI history

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Jan 21, 2028 EXPIRATION

KOS $500.00 Put

KOS280121P00000500

Latest saved OI6,325Oct 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 $500.00 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. 6,3253,1620 2026-10-02: 6,325 OI2026-10-06: 6,325 OI2026-10-07: 6,325 OI2026-10-08: 6,325 OI2026-10-09: 6,325 OI2026-10-13: 6,325 OI2026-10-14: 6,325 OI2026-10-15: 6,325 OI2026-10-16: 6,325 OI2026-10-20: 6,325 OI2026-10-23: 6,325 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, 2026Viewing6,3250
Oct 20, 20266,3250
Oct 16, 20266,3250
Oct 15, 20266,3250
Oct 14, 20266,3250
Oct 13, 20266,3250
Oct 09, 20266,3250
Oct 08, 20266,3250
Oct 07, 20266,3250
Oct 06, 20266,3250
Oct 02, 20266,325No prior observation