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Contract OI history

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Feb 19, 2027 EXPIRATION

GSK $55.00 Call

GSK270219C00055000

Latest saved OI317Oct 23, 2026
Last change+17vs 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. 3171580 2026-10-02: 214 OI2026-10-05: 214 OI2026-10-06: 214 OI2026-10-07: 216 OI2026-10-09: 214 OI2026-10-13: 222 OI2026-10-14: 222 OI2026-10-15: 259 OI2026-10-16: 273 OI2026-10-21: 300 OI2026-10-23: 317 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, 2026Viewing317+17
Oct 21, 2026300+27
Oct 16, 2026273+14
Oct 15, 2026259+37
Oct 14, 20262220
Oct 13, 2026222+8
Oct 09, 2026214-2
Oct 07, 2026216+2
Oct 06, 20262140
Oct 05, 20262140
Oct 02, 2026214No prior observation