Consider using the simple moving average (MA) rule of Gartley to determine when to
buy stocks, and when to sell them and switch to the risk-free rate. In comparison, how might the
performance be affected if the frequency is changed to the use of MA calculations? The empirical
results show that, on average, the lower is the frequency, the higher are average daily returns, even
though the volatility is virtually unchanged when the frequency is lower. The volatility from the
highest to the lowest frequency is about 30% lower as compared with the buy-and-hold strategy
volatility, but the average returns approach the buy-and-hold returns when frequency is lower.
The 30% reduction in volatility appears if we invest randomly half the time in stock markets and half
in the risk-free rate.