This interactive tree visualization shows the evolution of five major tech companies (Apple, Microsoft, Meta, Google, and Amazon) across five years, with each company branching into yearly nodes that display financial attributes like open, close, high, low, and volume. The hierarchy is constructed from CSV data using `d3.hierarchy`, then rendered with `d3.tree()` and `d3.linkHorizontal()` to create the branching paths, while node rectangles and circles are positioned via SVG transforms. Interactive tooltips appear on hover, and the layout animates within an SVG canvas using D3 v7.