(By Balachander) A number of stocks were upgraded, downgraded and price target changed by equities research analysts on Friday.
Aetna Inc. (NYSE: AET): JPMorgan upgraded its rating on the stock to "overweight" from "neutral". Shares traded 1.96 percent higher at $44.28.
athenahealth Inc. (NASDAQ: ATHN): Leerink Swann upgraded its rating on the stock to "outperform" from "market perform". Shares rose 1.21 percent to trade at $73.04.
Dreamworks Animation Skg Inc. (NASDAQ: DWA): Barclays lowered its price target on the stock to $15 from $18. Shares lost 2.08 percent to trade at $16.45.
DST Systems Inc. (NYSE: DST): Sterne Agee upgraded its rating on the stock to "buy" from "neutral". Shares inched up 0.03 percent to trade at $61.87.
InterDigital Inc. (NASDAQ: IDCC): Stephens downgraded its rating on the stock to "equal weight" from "overweight". Shares dropped 2.73 percent to trade at $43.48.
McDonald's Corp. (NYSE: MCD): Janney Capital upgraded its rating on the stock to "buy" from "neutral". Shares added 1.01 percent to trade at $88.98.
salesforce.com Inc. (NYSE: CRM): FBR raised its price target on the stock to $200 from $180. Shares shed 0.57 percent to trade at $156.52.