Yahoo! Inc.(NASDAQ:YHOO) sold its core business. This means its main and only asset is its Alibaba Group Holding Ltd (NYSE:BABA). Because they trade together, the stock chart of Yahoo! can be used to determine the stock direction of Alibaba. I am using this method right now to look at short on Alibaba. Yahoo! has a dramatic topping tail on the daily stock chart. A topping tail is one of the biggest bearish signals you can get when looking at a chart at its 52 week highs. Thus, Yahoo! is a short, but so is Alibaba. This dramatic sell signal can be mapped out to yield a downside target on Yahoo! to $37.65. In tune with that, Alibaba will likely sell off the same percentage, yielding a price target of $90.00. That is a hefty reward for either shorting Yahoo! or Alibaba. Check please! Time to go place a trade!