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Contract OI history

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Dec 18, 2026 EXPIRATION

GBX $35.00 Call

GBX261218C00035000

Latest saved OI17Oct 23, 2026
Last change+3vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GBX $35.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1780 2026-10-02: 7 OI2026-10-05: 7 OI2026-10-06: 11 OI2026-10-07: 12 OI2026-10-08: 12 OI2026-10-09: 12 OI2026-10-13: 13 OI2026-10-14: 13 OI2026-10-16: 13 OI2026-10-20: 14 OI2026-10-23: 17 OI Oct 02, 2026Oct 23, 2026

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

GBX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing17+3
Oct 20, 202614+1
Oct 16, 2026130
Oct 14, 2026130
Oct 13, 202613+1
Oct 09, 2026120
Oct 08, 2026120
Oct 07, 202612+1
Oct 06, 202611+4
Oct 05, 202670
Oct 02, 20267No prior observation