You mean from a charting perspective? If that's the case, I'm not much of a chartist. I find little use for them. I would assume from an apriori, before the fact, standpoint, you'd never really know for sure what company was a scam.
I just follow the volume. If you see massive volume with no reason behind it, or just a lot of posters touting the stock for no reason (a company with little to no revenues, few if any employees, a history of reverse splits) you're probably looking at a scam or at best a paid stock promotion with pumpers being given free shares, which they'll dump on the way up. Or you may find out that, if the volume isn't accompanied by sustained price increases with decent size trades going through, the company is selling shares. There are just so many factors.
Best advice...if someone on these boards is recommending a stock to you and posting everywhere about it...don't buy lol. It's all a gamble though.
