If you thought stock research was simple and transparent in the wake of Eliot Spitzer's crusade, you haven't looked closely at Wall Street's new rating systems. While all the major investment banks now adhere to a three-tier system to classify stocks, no standardized rules have been adopted, meaning that each brokerage has been able to define buy, sell and hold in its own unique way. "Companies have a right to rate stocks any way they want, but they also have a responsibility to provide a common denominator so we can compare them," said Thomas White, managing partner of Best Independent Research.
To make matters more confusing, UBS recently started rating its price forecasts separately, assigning a 1 rating to a price target that has a high probability of being met and a 2 rating to targets that could potentially be way off the mark. Over at Lehman Brothers ( LEH), ratings are assigned in an entirely different way. A buy rating, or overweight as they like to call it, means simply that a stock should perform better than the average stock in the analysts' coverage universe, according to a spokeswoman. In that case, investors would need to find out how the average stock had performed before acting on the advice. Lehman analysts also rate the attractiveness of their respective sectors.
"It made for great P.R. to go to a three-point system, but everyone's interpreted it in a different way," said Kei Kianpoor, CEO of Investars.com, a Web site that tracks analyst research. "Investors shouldn't need a degree in deconstruction to understand what a buy means."