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Contract OI history

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Dec 18, 2026 EXPIRATION

GERN $1000.00 Call

GERN261218C00001000

Latest saved OI209Oct 23, 2026
Last change+37vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GERN $1000.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2091040 2026-10-08: 171 OI2026-10-09: 171 OI2026-10-13: 171 OI2026-10-14: 171 OI2026-10-16: 171 OI2026-10-20: 172 OI2026-10-23: 209 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, 2026Viewing209+37
Oct 20, 2026172+1
Oct 16, 20261710
Oct 14, 20261710
Oct 13, 20261710
Oct 09, 20261710
Oct 08, 2026171No prior observation