Hecla Mining (HL) reached a significant support level, and could be a good pick for investors from a technical perspective. Recently, HL broke through the 20-day moving average, which suggests a short-term bullish trend. The 20-day simple moving average is a popular investing tool. Traders like this SMA because it offers a look back at a stock's price over a shorter period and helps smooth out price fluctuations. The 20-day can also show more trend reversal signals than longer-term moving averages. Like oth ...