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In addition to following professional banks, anyone can use Motley Fool CAPS to monitor the collective opinions of more than 130,000 members, many of whom demonstrate better investing insight than published analysts do.

Enough top-performing CAPS members have turned bullish on Darling International (NYSE:DAR) recently to upgrade it from its four-star rank to a more formidable five stars. A total of 910 members have given their opinion on the food-industry recycling firm, with many of them offering analysis and commentary explaining the recent optimism.

The collapse of commodities prices last year and the overall economic downturn took a toll not only on agriculture-based companies such as fertilizer makers Mosaic (NYSE:MOS), Agrium (NYSE:AGU), and CF Industries (NYSE:CF), but also on Darling. The company saw similar decreases in demand and its numbers suffered from several fourth-quarter writedowns and some contract cancellations. It did, however, manage to add some top-tier accounts last year, picking up recession-resistant McDonald's (NYSE:MCD), Costco (NASDAQ:COST), and Burger King (NYSE:BKC), and added over 9,000 new customers when it acquired several new businesses.

Despite the current issues, many investors see great potential for biofuel demand worldwide in the long term. Darling is already pushing ahead in this area, recently developing a recycling and biofuel system with the City of San Francisco. As personal consumption picks up in countries such as China and India, the company could also see solid sales in export, which dropped in the fourth quarter.

And the free-cash-flow positive company has a balance sheet that gives it flexibility to maneuver through the downturn -- and even take advantage of it to expand -- making it a company that is hard to ignore for many CAPS members. 

To see what the very best CAPS analysts are saying now about Darling -- as well as other winning stocks they are picking -- head on over to CAPS and have a look. The community research and resources in CAPS are totally free, unlike analyst opinions reserved for paying clients.

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Fool contributor Dave Mock recently upgraded his bicycle with some racing stripes and a reflector set. He owns no shares of companies mentioned here. Costco Wholesale is both a Stock Advisor and an Inside Value recommendation, and the Fool owns shares of it. The Fool's disclosure policy takes requests.