K12 (LRN) reached a significant support level, and could be a good pick for investors from a technical perspective. Recently, LRN broke through the 20-day moving average, which suggests a short-term bullish trend.A well-liked tool among traders, the 20-day simple moving average offers a look back at a stock's price over a 20-day period. This is very beneficial to short-term traders, as it smooths out short-term price trends and gives more trend reversal signals than longer-term moving averages.Like other SM ...