OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

GSK $45.00 Put

GSK280121P00045000

Latest saved OI1,129Oct 23, 2026
Last change-2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GSK $45.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,1315650 2026-10-02: 1,118 OI2026-10-05: 1,120 OI2026-10-06: 1,120 OI2026-10-07: 1,120 OI2026-10-09: 1,123 OI2026-10-13: 1,131 OI2026-10-14: 1,131 OI2026-10-15: 1,131 OI2026-10-16: 1,131 OI2026-10-21: 1,131 OI2026-10-23: 1,129 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, 2026Viewing1,129-2
Oct 21, 20261,1310
Oct 16, 20261,1310
Oct 15, 20261,1310
Oct 14, 20261,1310
Oct 13, 20261,131+8
Oct 09, 20261,123+3
Oct 07, 20261,1200
Oct 06, 20261,1200
Oct 05, 20261,120+2
Oct 02, 20261,118No prior observation