OITracker Cboe delayed data

Contract OI history

Back to GSK

Dec 18, 2026 EXPIRATION

GSK $45.00 Put

GSK261218P00045000

Latest saved OI88Oct 23, 2026
Last change+2vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
GSK $45.00 put open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 88440 2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 86 OI2026-10-23: 88 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, 2026Viewing88+2
Oct 21, 202686+86
Oct 16, 202600
Oct 15, 20260No prior observation