In the last six months, Applied Materials, Inc. (NASDAQ:AMAT) has surged almost non-stop, jumping a whopping 42%. Today that should all end. The stock is reversing strong early gains and trading near the lows of the day. If this holds, it will form a topping tail, a major bearish reversal signals. Considering Applied Materials is due for a correction, this may be the signal it is starting. Short the stock.