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Contract OI history

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Jan 21, 2028 EXPIRATION

KOS $3.00 Put

KOS280121P00003000

Latest saved OI1,684Oct 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 $3.00 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. 1,6848420 2026-10-02: 1,617 OI2026-10-06: 1,617 OI2026-10-07: 1,617 OI2026-10-08: 1,627 OI2026-10-09: 1,627 OI2026-10-13: 1,680 OI2026-10-14: 1,684 OI2026-10-15: 1,684 OI2026-10-16: 1,684 OI2026-10-20: 1,684 OI2026-10-23: 1,684 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, 2026Viewing1,6840
Oct 20, 20261,6840
Oct 16, 20261,6840
Oct 15, 20261,6840
Oct 14, 20261,684+4
Oct 13, 20261,680+53
Oct 09, 20261,6270
Oct 08, 20261,627+10
Oct 07, 20261,6170
Oct 06, 20261,6170
Oct 02, 20261,617No prior observation