A Trend-Following Strategy for the S&P 500 (opens in new tab)

A trend following strategy for the S&P 500 is one of those ideas that sounds almost too simple to work: buy when the market is going up, sell \(or step aside\) when it’s going down\. Yet, despite its simplicity, it has quietly survived decades of market cycles, crashes, and booms\. At its core, it’s not about predicting the future\. Instead, it’s about reacting to what the market is doing and staying aligned with that direction for as long as it persists\. The famous Turtle Experiment by Rich...