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Contract OI history

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Dec 18, 2026 EXPIRATION

GPRK $10.00 Call

GPRK261218C00010000

Latest saved OI346Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GPRK $10.00 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. 5402700 2026-10-02: 540 OI2026-10-05: 540 OI2026-10-06: 540 OI2026-10-07: 540 OI2026-10-08: 540 OI2026-10-09: 538 OI2026-10-13: 346 OI2026-10-14: 346 OI2026-10-16: 346 OI2026-10-20: 346 OI2026-10-23: 346 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

GPRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20263460
Oct 20, 2026Viewing3460
Oct 16, 20263460
Oct 14, 20263460
Oct 13, 2026346-192
Oct 09, 2026538-2
Oct 08, 20265400
Oct 07, 20265400
Oct 06, 20265400
Oct 05, 20265400
Oct 02, 2026540No prior observation