Analysts at Goldman Sachs downgraded Thoratec (NASDAQ:

) from “buy” to “neutral.” The target price for Thoratec has been lowered from $42 to $37. Thoratec's shares closed at $32.60 on Friday. Analysts at Oppenheimer downgraded Lowe's Companies (NYSE:

) from “outperform” to “perform.” The target price for Lowe's is set to $46. Lowe's shares closed at $42.67 on Friday. Analysts at Keefe Bruyette & Woods downgraded Bank of America (NYSE:

) from “outperform” to “perform.” Bank of America's shares closed at $13.43 on Friday. Jefferies downgraded Bed Bath & Beyond (NASDAQ:

) from “buy” to “hold.” The target price for Bed Bath & Beyond has been lowered from $76 to $71. Bed Bath & Beyond's shares closed at $69.11 on Friday.