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Contract OI history

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Nov 20, 2026 EXPIRATION

GERN $1000.00 Put

GERN261120P00001000

Latest saved OI89Oct 23, 2026
Last change+19vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GERN $1000.00 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. 89440 2026-10-08: 0 OI2026-10-09: 10 OI2026-10-13: 10 OI2026-10-14: 10 OI2026-10-16: 10 OI2026-10-20: 70 OI2026-10-23: 89 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, 2026Viewing89+19
Oct 20, 202670+60
Oct 16, 2026100
Oct 14, 2026100
Oct 13, 2026100
Oct 09, 202610+10
Oct 08, 20260No prior observation