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Contract OI history

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Dec 18, 2026 EXPIRATION

GEN $30.00 Call

GEN261218C00030000

Latest saved OI3,619Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GEN $30.00 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. 3,6191,8090 2026-10-09: 3,591 OI2026-10-13: 3,568 OI2026-10-14: 3,614 OI2026-10-15: 3,614 OI2026-10-16: 3,615 OI2026-10-21: 3,617 OI2026-10-23: 3,619 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, 2026Viewing3,619+2
Oct 21, 20263,617+2
Oct 16, 20263,615+1
Oct 15, 20263,6140
Oct 14, 20263,614+46
Oct 13, 20263,568-23
Oct 09, 20263,591No prior observation