If you miss a good stock when it breaks out, the 50-day moving average offers a second chance. Quality growth stocks with good institutional sponsorship often find support around this line, which tracks a stock’s average price over the prior 50 days. That’s because mutual funds and other big investors may add to their positions when a favored stock pulls back to or just below the 50-day. The first such pullback offers the best opportunity. The more extended a stock gets from its initial breakout, the higher the chance of a sizable correction.