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One of the most successful strategies for long-term investment returns is to buy and hold a broad-coverage index fund.
The SPY is an exchange-traded fund (ETF) that tracks the S&P 500, and is a good example of broad-coverage index fund.
A simple strategy can be devised to obtain even better than buy-and-hold long-term returns, employing fast- and slow-moving averages.
We explain and test a one-year moving average strategy that in the long term performs significantly better than buying and holding SPY.