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Contract OI history

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Feb 19, 2027 EXPIRATION

GSK $35.00 Put

GSK270219P00035000

Latest saved OI72Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GSK $35.00 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. 72360 2026-10-02: 65 OI2026-10-05: 65 OI2026-10-06: 65 OI2026-10-07: 65 OI2026-10-09: 68 OI2026-10-13: 72 OI2026-10-14: 72 OI2026-10-15: 72 OI2026-10-16: 72 OI2026-10-21: 72 OI2026-10-23: 72 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, 2026Viewing720
Oct 21, 2026720
Oct 16, 2026720
Oct 15, 2026720
Oct 14, 2026720
Oct 13, 202672+4
Oct 09, 202668+3
Oct 07, 2026650
Oct 06, 2026650
Oct 05, 2026650
Oct 02, 202665No prior observation