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Contract OI history

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Nov 20, 2026 EXPIRATION

KOS $2.50 Put

KOS261120P00002500

Latest saved OI5,299Oct 23, 2026
Last change+494vs 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. 5,2992,6490 2026-10-02: 2,785 OI2026-10-06: 3,116 OI2026-10-07: 3,122 OI2026-10-08: 3,157 OI2026-10-09: 3,157 OI2026-10-13: 3,420 OI2026-10-14: 3,449 OI2026-10-15: 4,435 OI2026-10-16: 4,516 OI2026-10-20: 4,805 OI2026-10-23: 5,299 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, 2026Viewing5,299+494
Oct 20, 20264,805+289
Oct 16, 20264,516+81
Oct 15, 20264,435+986
Oct 14, 20263,449+29
Oct 13, 20263,420+263
Oct 09, 20263,1570
Oct 08, 20263,157+35
Oct 07, 20263,122+6
Oct 06, 20263,116+331
Oct 02, 20262,785No prior observation