Analysts at Goldman Sachs upgraded Walter Energy (NYSE:

) from “sell” to “neutral.” The target price for Walter Energy has been raised from $10 to $15. Walter Energy's shares closed at $14.55 yesterday. Analysts at Sterne Agee upgraded Nike (NYSE:

) from “neutral” to “buy.” The target price for Nike is set to $85. Nike's shares closed at $70.34 yesterday. Deutsche Bank upgraded Trina Solar (NYSE:

) from “hold” to “buy.” The target price for Trina Solar has been raised to $18. Trina Solar's shares closed at $12.84 yesterday. Analysts at Wunderlich upgraded Heritage-Crystal Clean (NASDAQ:

) from “hold” to “buy.” The target price for Heritage-Crystal Clean has been raised from $16 to $20. Heritage-Crystal Clean's shares closed at $17.98 yesterday.