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Contract OI history

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Nov 20, 2026 EXPIRATION

CGEN $2.50 Put

CGEN261120P00002500

Latest saved OI2Oct 23, 2026
Last change+1vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CGEN $2.50 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. 210 2026-10-09: 1 OI2026-10-13: 1 OI2026-10-14: 2 OI2026-10-16: 2 OI2026-10-20: 1 OI2026-10-23: 2 OI Oct 09, 2026Oct 23, 2026

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

CGEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2+1
Oct 20, 20261-1
Oct 16, 202620
Oct 14, 20262+1
Oct 13, 202610
Oct 09, 20261No prior observation