Cassava Sciences (NASDAQ:SAVA) stock is a hot topic among traders on Tuesday alongside a few important pieces of news that investors need to know about this morning. First off, traders will note that SAVA is a trending stock today. This had it claiming one of the top 10 spots on Yahoo Finance's Trending Tickers tab earlier this morning. While interest has waned a little since then, investors are still wondering what's behind the extra attention for the stock. One thing that's worth noting is that SAVA stock ...