Callum Thomas published a new weekly S&P 500 ChartStorm update, extending his regular chart-based review of the index. The latest post also points readers to ke

Callum Thomas published a new weekly S&P 500 ChartStorm update, extending his regular chart-based review of the index. The latest post also points readers to key market-chart sources including Mike Zaccardi, topdowncharts and Jason Goepfert.