This circular arc diagram visualizes correlations between financial market entities, showing nodes arranged horizontally with curved links of varying thickness representing connection strength. The interactive visualization uses D3 v7 with React, loading JSON data from a GitHub gist. On mouseover, the selected node and its related links are highlighted, while all other elements are dimmed. The implementation combines React state management via useEffect hooks with D3's selection and data joining APIs, including selectAll, join, and scalePoint for positioning.