Investors appear to be waving off growth concerns this week as U.S. stocks claw back some of last week's losses. The S&P 500 (SNPINDEX:^GSPC) and the narrower, price-weighted Dow Jones Industrial Average (DJINDICES:^DJI) were up 0.67% and 0.78%, respectively, at 10:05 a.m. EDT.

DuPont's got the weather on its side
Chemicals manufacturer DuPont (NYSE:DD) released its first-quarter results this morning, and the sun shone on its fortunes -- literally. The company recorded operating earnings-per-share of $1.56, beating the consensus estimate of $1.52, thanks to record earnings in the agriculture segment as dry weather encouraged U.S. farmers to buy its new seed and crop protection products. At $10.41 billion, revenue was exactly in line with Wall Street expectations.

Better yet, DuPont reaffirmed its guidance range for full-year 2013 operating earnings of $3.85 to $4.05 per share (unlike Caterpillar, the Dow stalwart that reported yesterday), which would represent an increase of 2% to 7% from the $3.77 per share the company earned in 2012.

The company also announced a 5% dividend increase, which will help support its robust 3.5% dividend yield. In fact, DuPont is a classic example of a blue-chip dividend-payer that has benefited from investor interest in two factors: income and quality. As a result, the shares have massively outperformed the S&P 500 since the market hit its low on March 9, 2009:

DD Total Return Price Chart

DD Total Return Price data by YCharts.

DuPont is an attractive franchise, and I would argue that this year's sale of its cyclical performance-coatings (i.e., paint) business makes it all the more so. For long-term investors, there is no problem in continuing to hold the shares at this level; nevertheless, trading at 13 times the estimate for the next 12 months' EPS, their valuation is toward the top of its recent range. Looking ahead, shareholders should expect adequate, rather than spectacular, returns.

Fool contributor Alex Dumortier, CFA has no position in any stocks mentioned; you can follow him at LinkedIn. 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.