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Contract OI history

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Jan 21, 2028 EXPIRATION

PROK $4.00 Call

PROK280121C00004000

Latest saved OI2,567Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PROK $4.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,5671,2830 2026-10-09: 2,517 OI2026-10-13: 2,567 OI2026-10-14: 2,567 OI2026-10-16: 2,567 OI2026-10-20: 2,567 OI2026-10-23: 2,567 OI Oct 09, 2026Oct 23, 2026

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

PROK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,5670
Oct 20, 20262,5670
Oct 16, 20262,5670
Oct 14, 20262,5670
Oct 13, 20262,567+50
Oct 09, 20262,517No prior observation