Why did the markets move? Most investors, analysts and even financial journalists will look, first and foremost, for news. Perhaps the jobs data were published, a firm announced it was being acquired or a central banker gave a sombre speech. Yet a small, dedicated cult of “chartists” or “technical analysts” believes that the movement of stocks, bonds and currencies can be divined by the making and interpreting of charts.
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Their methods are many, varied and wackily named. A “death cross” is when a short-term moving average of an asset’s price falls below a long-term moving average. “Fibonacci retracement levels” rely on the idea that an asset climbing in price will fall back before rising again. Such backsliding is supposed to stop at levels based on Fibonacci numbers, like a 61.8% drop. The…