Editor's Note: Green and red arrows refer to intraday stock price movement.

NEW YORK ( TheStreet) -- CHANGE IN RATINGS

Casey's General Stores ( CASY - Get Report) upgraded at BofA/Merrill from Neutral to Buy. $49 price target. Merchandise comps are improving.

Encana ( ECA - Get Report) downgraded at Benchmark from Buy to Hold. Company is leveraged to lower natural gas prices.

F5 Networks ( FFIV - Get Report) upgraded at Stifel from Hold to Buy. Valuation call, based on an $84 price target.

Google ( GOOG - Get Report) rated new Outperform at Baird. $650 price target. Company is a dominant market leader and remains leveraged to secular growth.

Synchronoss Technologies ( SNCR - Get Report) upgraded at Baird from Neutral to Outperform. $36 price target. Company is better relatively positioned for a possible economic downturn.

Valmont Industries ( VMI - Get Report) rated new Buy at Keybanc. $110 price target. Company has solid management and is trading near trough valuations.

End of report.

This article was written by a staff member of TheStreet.