By CCN: The US stock market teeters at its third-most expensive valuation in history, just a hair shy of ballooning past Black Tuesday and the 1929 stock market. That’s based on the Shiller P/E ratio, which is derived from average inflation-adjusted earnings from the previous ten years. Given the lofty heights of the stock market, it would take a 50 percent stock market crash to revert valuations to the mean. In other words, it’s time to be on the lookout for what might trigger this inevitable downturn. These are the three most likely culprits to cause a stock market crash. 1.

The post A Stock Market Crash is Inevitable – Here Are 3 Nightmare Scenarios appeared first on CCN