While Fools should generally take the opinion of Wall Street with a grain of salt, it's not a bad idea to take a look at particularly stock-shaking analyst upgrades and downgrades -- just in case their reasoning behind the call makes sense.

What: Shares of Equifax (NYSE:EFX) climbed 2% today after Credit Suisse upgraded the information services provider from neutral to outperform.

So what: Along with the upgrade, analyst Georgios Mihalos boosted his price target to $80 (from $65), representing about 17% worth of upside to yesterday's close. So while momentum traders might be turned off by Equifax's price sluggishness in recent months, Mihalos' call could reflect a growing sense on Wall Street that its prospects are becoming too cheap to pass up.

Now what: According to Credit Suisse, Equifax's risk/reward trade-off is particularly attractive at this point. "We upgraded EFX to Outperform and raised our target price to $80 from $65, reflecting our view that organic revenue growth will improve over 2H14 and materially accelerate in 2015," said Mihalos. "With a continued modest improvement in U.S. consumer lending and a forecasted 39% decline in mortgage origination volumes (MBA) in 2014 turning to 15% growth in 2015, we think EFX is likely to exceed Street consensus estimates for 2015 with revenue growth of 9%." When you couple that upbeat outlook with Equifax's still-reasonable forward P/E of 15, it's tough to disagree with Credit Suisse's bullishness. 

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Brian Pacampara has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

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