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According to the average brokerage recommendation (ABR), one should invest in Citigroup (C). It is debatable whether this highly sought-after metric is effectiv

When deciding whether to buy, sell, or hold a stock, investors often rely on analyst recommendations. Media reports about rating changes by these brokerage-firm-employed (or sell-side) analysts often influence a stock's price, but are they really important?

Let's take a look at what these Wall Street heavyweights have to say about Citigroup $C (C) before we discuss the reliability of brokerage recommendations and how to use them to your advantage.

Citigroup currently has an average brokerage recommendation (ABR) of 1.76, on a scale of 1 to 5 (Strong Buy to Strong Sell), calculated based on the actual recommendations (Buy, Hold, Sell, etc.) made by 25 brokerage firms. An ABR of 1.76 approximates between Strong Buy and Buy.