Look for big growth in profit and revenue in the most recent quarter. That's the key takeaway from IBD's research into winning stocks. Piper Jaffray (PJC) is certainly delivering in this area, helping the investment bank and asset manager claim a place in IBD's Stock Spotlight screen. On Jan. 30, the Minneapolis-based company reported that fourth-quarter earnings per share surged 577%. That represented a ramp up from its 273% EPS growth in Q3, a