Harry Browne wrote about the pitfalls of using stop-loss (and other signals) in Why The Best-Laid Investment Plans Usually Go Wrong. He was a fan of using stop-loss orders for speculative purposes, but he was against them for non-speculative investing. The biggest problem is that you can often a false signal or a price reversal. You sell one asset and the next thing you know it goes up for the next 24 months. That would not be good.moda0306 wrote:Regarding the PP portion of your portfolio, if the PP were to take a 10%+ loss, would you stop-loss it? Or would you view it as more fundamentally sound as-is and hope/plan for a quick rebound?
That price-reversal flaw leads some people to use moving average systems instead. But he also shows that moving average systems can often give false signals as well — causing the investor to be jerked around with many buy and sell orders and sometimes even with accumulated losses after many transactions.
If you're going to use stop-loss or moving average systems, only do it with your VP.