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Contract OI history

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Nov 20, 2026 EXPIRATION

GSK $55.00 Call

GSK261120C00055000

Latest saved OI2,422Oct 23, 2026
Last change+161vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GSK $55.00 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. 2,4221,2110 2026-10-02: 1,945 OI2026-10-05: 1,939 OI2026-10-06: 1,961 OI2026-10-07: 1,962 OI2026-10-09: 1,960 OI2026-10-13: 1,975 OI2026-10-14: 1,975 OI2026-10-15: 1,976 OI2026-10-16: 1,977 OI2026-10-21: 2,261 OI2026-10-23: 2,422 OI Oct 02, 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, 2026Viewing2,422+161
Oct 21, 20262,261+284
Oct 16, 20261,977+1
Oct 15, 20261,976+1
Oct 14, 20261,9750
Oct 13, 20261,975+15
Oct 09, 20261,960-2
Oct 07, 20261,962+1
Oct 06, 20261,961+22
Oct 05, 20261,939-6
Oct 02, 20261,945No prior observation