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Contract OI history

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Nov 20, 2026 EXPIRATION

GSK $51.00 Call

GSK261120C00051000

Latest saved OI437Oct 23, 2026
Last change+406vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
GSK $51.00 call open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 4372180 2026-10-21: 31 OI2026-10-23: 437 OI Oct 21, 2026Oct 23, 2026

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

GSK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing437+406
Oct 21, 202631No prior observation