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Contract OI history

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Dec 18, 2026 EXPIRATION

GPRK $15.00 Call

GPRK261218C00015000

Latest saved OI222Oct 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 $15.00 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. 4112050 2026-10-02: 409 OI2026-10-05: 409 OI2026-10-06: 411 OI2026-10-07: 411 OI2026-10-08: 411 OI2026-10-09: 411 OI2026-10-13: 411 OI2026-10-14: 411 OI2026-10-16: 411 OI2026-10-20: 222 OI2026-10-23: 222 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, 20262220
Oct 20, 2026Viewing222-189
Oct 16, 20264110
Oct 14, 20264110
Oct 13, 20264110
Oct 09, 20264110
Oct 08, 20264110
Oct 07, 20264110
Oct 06, 2026411+2
Oct 05, 20264090
Oct 02, 2026409No prior observation