The stock market is well known for extreme price swings and the Covid-19 bear market will go down as one of the biggest in history. But even with the beating some portfolios have taken investors can use a downtrend to lower the break even of stock holdings. Here's how. Ideally, stocks could be sold as soon as a sell signal is detected. However, the reality is some investors will ride a stock down no matter how far it falls. Whether it's a buy and hold philosophy or an attachm