After reaching an important support level, Guardant Health, Inc. (GH) could be a good stock pick from a technical perspective. GH recently experienced a "golden cross" event, which saw its 50-day simple moving average breaking out above its 200-day simple moving average.A golden cross is a technical chart pattern that can signify a potential bullish breakout. It's formed from a crossover involving a security's short-term moving average breaking above a longer-term moving average, with the most common moving ...