Displays real-time candles of top 40 constituents of S&P 500 Index (SPX) for a given time frame, side-by-side. This gives an overall idea of breadth and depth of market movements in the time-frame.
Please note that, this is not a standard chart rendered bar-wise and may take time to load as it requests multiple securities. You could modify the contents, from settings, to include stocks from your portfolio or indices of different sectors.