Analysts at Piper Jaffray downgraded Cepheid (NASDAQ: CPHD ) from “overweight” to “neutral.” Cepheid's shares closed at $34.09 yesterday. Cepheid's trailing-twelve-month ROE is -12.52%. Analysts at Deutsche Bank downgraded Abbott Laboratories (NYSE: ABT ) from “buy” to “hold.” Abbott's shares closed at $33.27 yesterday. Abbott's PEG ratio is 0.51. Analysts