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Ep. 989: Four Trend Players with Michael Covel on Trend Following Radio

Michael Covel's Trend Following

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The History of the Bollinger Band

The very first version of Bollinger bands, probably 1982. I had one of the early microcomputers, and this was in the days before PCs. One day, I calculated volatility, and I copied the formula down a row of cells. And I saw that volatility was changing.

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