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Contract OI history

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Dec 18, 2026 EXPIRATION

GEN $25.00 Call

GEN261218C00025000

Latest saved OI2,139Oct 23, 2026
Last change+7vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GEN $25.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,1421,0710 2026-10-09: 2,138 OI2026-10-13: 2,138 OI2026-10-14: 2,142 OI2026-10-15: 2,142 OI2026-10-16: 2,132 OI2026-10-21: 2,132 OI2026-10-23: 2,139 OI Oct 09, 2026Oct 23, 2026

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

GEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,139+7
Oct 21, 20262,1320
Oct 16, 20262,132-10
Oct 15, 20262,1420
Oct 14, 20262,142+4
Oct 13, 20262,1380
Oct 09, 20262,138No prior observation