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Contract OI history

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Dec 18, 2026 EXPIRATION

GSK $55.00 Call

GSK261218C00055000

Latest saved OI509Oct 23, 2026
Last change+405vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
GSK $55.00 call open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 5092540 2026-10-15: 0 OI2026-10-16: 5 OI2026-10-21: 104 OI2026-10-23: 509 OI Oct 15, 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, 2026Viewing509+405
Oct 21, 2026104+99
Oct 16, 20265+5
Oct 15, 20260No prior observation