Value Averaging Doesn’t Work
Andrew Hallam wrote a piece in the Globe and Mail that likened enhancing performance in sports by blood doping to an investing method due to Michael Edelson called “value averaging” . Value averaging is simple enough to understand, and if you use the wrong method of evaluating its results, it seems to boost returns. However, the reality is that it doesn’t boost returns, and it drives up your investing costs. The idea of value averaging is to keep your portfolio increasing at some target rate, regardless of what happens in the market. For example, if you target a 0.5% return each month, if the market goes up more than 0.5%, you sell some of your portfolio; otherwise, you add more cash to buy more assets. No matter what happens in the market, your portfolio rises steadily. An immediate problem arises: where do I get this cash to pour into my investments when the market drops? The answer is that you’re supposed to keep a side pot of cash that you either put money into or take mon...