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Contract OI history

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Dec 18, 2026 EXPIRATION

KOPN $4.00 Put

KOPN261218P00004000

Latest saved OI234Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KOPN $4.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2351170 2026-10-09: 234 OI2026-10-13: 235 OI2026-10-14: 235 OI2026-10-16: 235 OI2026-10-20: 234 OI2026-10-23: 234 OI Oct 09, 2026Oct 23, 2026

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

KOPN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2340
Oct 20, 2026234-1
Oct 16, 20262350
Oct 14, 20262350
Oct 13, 2026235+1
Oct 09, 2026234No prior observation