BALTIMORE ( Stockpickr) -- And just like that, investors like stocks again.Well, maybe it wasn't "just like that" -- it took Ben Bernanke agreeing to spend $40 billion a month on mortgage-backed securities for the foreseeable future. But the results are the same: Investors are getting comfortable buying stocks again. That's evidenced by the fact that the S&P 500 closed another week with nearly 2% gains, shoving Mr. Market's total gains in 2012 to an impressive 16.6%. >>5 Stocks Poised for Breakouts This new wave of equity optimism is setting the stage for even higher price levels by the end of September. That's why we're turning to a new set of Rocket Stocks this week. For the uninitiated, "Rocket Stocks" are our list of companies with short-term gain catalysts and longer-term growth potential. To find them, I run a weekly quantitative screen that seeks out stocks with a combination of analyst upgrades and positive earnings surprises to identify rising analyst expectations, a bullish signal for stocks in any market. After all, where analysts' expectations are increasing, institutional cash often follows. >>5 Stocks Under $10 Set to Soar In the last 168 weeks, our weekly list of five plays has outperformed the S&P 500 by 78.58%. Without further ado, here's a look at this week's Rocket Stocks.