OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

GSK $50.00 Put

GSK270115P00050000

Latest saved OI1,784Oct 23, 2026
Last change+539vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GSK $50.00 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. 1,7848920 2026-10-02: 583 OI2026-10-05: 584 OI2026-10-06: 632 OI2026-10-07: 662 OI2026-10-09: 662 OI2026-10-13: 702 OI2026-10-14: 702 OI2026-10-15: 842 OI2026-10-16: 842 OI2026-10-21: 1,245 OI2026-10-23: 1,784 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, 2026Viewing1,784+539
Oct 21, 20261,245+403
Oct 16, 20268420
Oct 15, 2026842+140
Oct 14, 20267020
Oct 13, 2026702+40
Oct 09, 20266620
Oct 07, 2026662+30
Oct 06, 2026632+48
Oct 05, 2026584+1
Oct 02, 2026583No prior observation