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Contract OI history

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Nov 20, 2026 EXPIRATION

GERN $1.50 Put

GERN261120P00001500

Latest saved OI415Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GERN $1.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 4152070 2026-10-08: 14 OI2026-10-09: 14 OI2026-10-13: 414 OI2026-10-14: 414 OI2026-10-16: 414 OI2026-10-20: 414 OI2026-10-23: 415 OI Oct 08, 2026Oct 23, 2026

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

GERN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing415+1
Oct 20, 20264140
Oct 16, 20264140
Oct 14, 20264140
Oct 13, 2026414+400
Oct 09, 2026140
Oct 08, 202614No prior observation