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What: Shares of Kraton Performance Polymers (NYSE: KRA) were not performing for investors today, falling as much as 12%, after posting poor first-quarter results.

So what: The polymer maker said a shift in butadiene market dynamics was partially responsible for the disappointing quarter, as well as bad weather, which affected sales of paving and roofing compounds. Volume sales were down 12.7% in the quarter, while dollar sales fell 17%, to $340.1 million, badly missing analyst expectations at $363.2 million. Earnings per share were similarly off the mark, coming in at just $0.07, all the way down from $0.49 a year ago, and well below estimates of $0.28.

Now what: It's hard to miss estimates by more than that, but Kraton outdid itself in previous quarters, posting an $0.88 loss on estimates of a $0.10 per-share profit in the period ending in December 2012. I'd like to say its problems are temporary, but the series of terrible earnings reports leads to me think otherwise. I'd stay away from this one until it proves it can hit its targets.

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Fool contributor Jeremy Bowman 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.