Analysts at Citigroup downgraded Sony (NYSE:

) from “buy” to “neutral.” Sony's shares closed at $13.45 yesterday. Sony's trailing-twelve-month ROE is -14.58%. Analysts at William Blair downgraded Bridgepoint Education (NYSE:

) from “outperform” to “market perform.” Bridgepoint Education's shares closed at $14.25 yesterday. Bridgepoint Education's trailing-twelve-month profit margin is 15.92%. Analysts at Goldman Sachs downgraded MAKO Surgical (NASDAQ:

) from “buy” to “neutral.” MAKO Surgical's shares closed at $24.61 yesterday. MAKO Surgical's PEG ratio is -1.19. Deutsche Bank downgraded Pearson plc (NYSE:

) from “buy” to “hold.” Pearson's shares closed at $19.41 yesterday. Pearson's trailing-twelve-month ROA is 4.43%.