Because FAS is in a short term agressive uptrend. It has also had large unexplained volume increases. This stands out to traders like a pimple on your nose as they are looking for where the smart money is going and why.
Sometimes unexplained volume increases can be put down to low liquidity or change in sentiment. Other times they can be put down to insiders getting in befoer a big announcment. Many traders look for these trends in various stocks to take a position before she goes pop.
Not saying that this is going to happen, but any trader who bought at 2.8c a month or 2 ago is sitting on rather large profits at the moment.
FAS Price at posting:
5.9¢ Sentiment: Buy Disclosure: Held