Closing Glance: Shares of agricultural chemicals decline

Analyst Fai Lee downgraded the stock to "Outperform" from "Top Pick," and said shares may settle following recent good news.

Here's how shares of major agricultural chemical companies fared Tuesday:

DuPont Co., down 51 cents to $48.67.

Dow Chemical Co., up 6 cents to $40.10.

Potash Corp., down $12.01, or 6.2 percent, to $181.49.

Mosaic Co., down $5.62, or 4.5 percent, to $118.06.