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Contract OI history

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Apr 16, 2027 EXPIRATION

KOS $2.50 Put

KOS270416P00002500

Latest saved OI1,221Oct 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 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. 1,2216100 2026-10-02: 982 OI2026-10-06: 1,002 OI2026-10-07: 1,002 OI2026-10-08: 992 OI2026-10-09: 992 OI2026-10-13: 1,002 OI2026-10-14: 1,012 OI2026-10-15: 1,131 OI2026-10-16: 1,196 OI2026-10-20: 1,221 OI2026-10-23: 1,221 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, 2026Viewing1,2210
Oct 20, 20261,221+25
Oct 16, 20261,196+65
Oct 15, 20261,131+119
Oct 14, 20261,012+10
Oct 13, 20261,002+10
Oct 09, 20269920
Oct 08, 2026992-10
Oct 07, 20261,0020
Oct 06, 20261,002+20
Oct 02, 2026982No prior observation