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Contract OI history

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Jan 21, 2028 EXPIRATION

KOS $1.50 Put

KOS280121P00001500

Latest saved OI640Oct 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 $1.50 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. 6403200 2026-10-02: 640 OI2026-10-06: 640 OI2026-10-07: 640 OI2026-10-08: 640 OI2026-10-09: 640 OI2026-10-13: 640 OI2026-10-14: 640 OI2026-10-15: 640 OI2026-10-16: 640 OI2026-10-20: 640 OI2026-10-23: 640 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, 2026Viewing6400
Oct 20, 20266400
Oct 16, 20266400
Oct 15, 20266400
Oct 14, 20266400
Oct 13, 20266400
Oct 09, 20266400
Oct 08, 20266400
Oct 07, 20266400
Oct 06, 20266400
Oct 02, 2026640No prior observation