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Contract OI history

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Dec 18, 2026 EXPIRATION

KOPN $3.50 Put

KOPN261218P00003500

Latest saved OI304Oct 23, 2026
Last change+52vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KOPN $3.50 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. 3041520 2026-10-09: 252 OI2026-10-13: 252 OI2026-10-14: 252 OI2026-10-16: 253 OI2026-10-20: 252 OI2026-10-23: 304 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, 2026Viewing304+52
Oct 20, 2026252-1
Oct 16, 2026253+1
Oct 14, 20262520
Oct 13, 20262520
Oct 09, 2026252No prior observation