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Contract OI history

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Nov 20, 2026 EXPIRATION

GKOS $155.00 Put

GKOS261120P00155000

Latest saved OI368Oct 23, 2026
Last change+9vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GKOS $155.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3681840 2026-10-02: 28 OI2026-10-05: 28 OI2026-10-06: 28 OI2026-10-08: 28 OI2026-10-09: 38 OI2026-10-13: 359 OI2026-10-14: 359 OI2026-10-16: 359 OI2026-10-20: 359 OI2026-10-23: 368 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

GKOS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing368+9
Oct 20, 20263590
Oct 16, 20263590
Oct 14, 20263590
Oct 13, 2026359+321
Oct 09, 202638+10
Oct 08, 2026280
Oct 06, 2026280
Oct 05, 2026280
Oct 02, 202628No prior observation