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Contract OI history

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Nov 20, 2026 EXPIRATION

GNTX $20.00 Put

GNTX261120P00020000

Latest saved OI163Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GNTX $20.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 164820 2026-10-09: 121 OI2026-10-13: 121 OI2026-10-14: 142 OI2026-10-15: 143 OI2026-10-16: 143 OI2026-10-21: 164 OI2026-10-23: 163 OI Oct 09, 2026Oct 23, 2026

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

GNTX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing163-1
Oct 21, 2026164+21
Oct 16, 20261430
Oct 15, 2026143+1
Oct 14, 2026142+21
Oct 13, 20261210
Oct 09, 2026121No prior observation