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Contract OI history

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Jan 15, 2027 EXPIRATION

GSK $55.00 Call

GSK270115C00055000

Latest saved OI2,019Oct 23, 2026
Last change+544vs 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. 2,0191,0090 2026-10-02: 795 OI2026-10-05: 791 OI2026-10-06: 788 OI2026-10-07: 794 OI2026-10-09: 852 OI2026-10-13: 853 OI2026-10-14: 853 OI2026-10-15: 847 OI2026-10-16: 879 OI2026-10-21: 1,475 OI2026-10-23: 2,019 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, 2026Viewing2,019+544
Oct 21, 20261,475+596
Oct 16, 2026879+32
Oct 15, 2026847-6
Oct 14, 20268530
Oct 13, 2026853+1
Oct 09, 2026852+58
Oct 07, 2026794+6
Oct 06, 2026788-3
Oct 05, 2026791-4
Oct 02, 2026795No prior observation