This example demonstrates an interactive multi-line chart for exploring monthly stock price data from a CSV dataset containing symbols, dates, and prices for MSFT and AMZN. Built with D3 v4 and rendered as SVG, the visualization initially displays all available time series. A click-to-filter interaction lets users toggle individual stocks on and off, dynamically hiding or showing lines to focus on specific trends. The chart encodes time on the x-axis and price on the y-axis, with each line color-coded by stock symbol. The dataset is loaded from an external gist, and the visualization supports hover interactions for detailed values.