Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of Vertex Energy Inc (NASDAQ:VTNR) jumped as much as 14% today after an analyst reiterated a buy rating.

So what: Wunderlich Securities analyst Michael E. Hoffman kept Vertex on his buy list and raised his price target for the stock from $10 to $12 per share. He said that growth is expected to be higher than previously anticipated in 2015, and margins should be up as well, which resulted in the higher price target.  

Now what: Stocks often move on analyst upgrades or downgrades, but long-term analysts have a poor record against the market. The other thing we can count on is that results won't be the same as analyst models because analysts have been off on Vertex Energy's earnings per share estimates by an average of 101% in the last three quarters. I'd compare this note to how you view the company, but don't take any Wall Street rating as the only reason to buy or sell a stock.

Do you know this energy tax "loophole"?
You already know record oil and natural production is changing the lives of millions of Americans. But what you probably haven't heard is that the IRS is encouraging investors to support our growing energy renaissance, offering you a tax loophole to invest in some of America's greatest energy companies. Take advantage of this profitable opportunity by grabbing your brand-new special report, "The IRS Is Daring You to Make This Investment Now!," and you'll learn about the simple strategy to take advantage of a little-known IRS rule. Don't miss out on advice that could help you cut taxes for decades to come. Click here to learn more.

Travis Hoium 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.