Investors often turn to recommendations made by Wall Street analysts before making a Buy, Sell, or Hold decision about a stock. While media reports about rating changes by these brokerage-firm employed (or sell-side) analysts often affect a stock’s price, do they really matter? Let’s take a look at what these Wall Street heavyweights have to say about Teradyne (NASDAQ: TER) before we discuss the reliability of brokerage recommendations and how to use them to your advantage. Teradyne currently has an average brokerage recommendation of 1.81, on a scale of 1 to 5 (Strong Buy to Strong Sell), cal…