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Constellation and Monsanto beat on earnings; Micron shares soar; McDonald's downgraded

Hot Stock Minute

Here are four stocks the Yahoo Finance team will be watching for you today.

First up, Constellation Brands (STZ). The beer, wine and spirits company reported adjusted earnings this morning of a $1.10 a share, beating estimates of $0.91. Revenue rose 88% from last year to $1.44 billion dollars which beat estimates of $1.39 billion. Constellation shares are up more than 88% since this time last year.

Next, Monsanto (MON) reported earnings today of $0.69 a share beating estimates of $0.64. Revenue came in at $3.14 billion on estimates of $3.07 billion, and is up from last year's posting of $2.94 billion. Monsanto has faced public outcry over the safety of genetically modified organisms in food. As you may remember, last week General Mills (GIS) announced it would be making Cheerios GMO-free. If other food companies follow suit, it could spell trouble for Monsanto which breeds, grows and sells genetically modified seeds. The company's stock is up over 20% since this time last year.

Now, Micron Technology (MU), which we covered yesterday ahead of its earnings but we want to highlight again because the stock is up 9% in early trading. Shares of the largest U.S. maker of memory chips are up after the company beat on earnings yesterday. Micron reported profits of $0.30 a share versus the $0.21 expected after the close. Revenue rose to $4.04 billion, more than double last year's sales. The stock was up 5% yesterday. Micron had a stellar 2013, up over 200%.

Finally, McDonald's (MCD) whose stock could see movement today after it was downgraded by Wells Fargo from Outperform to Market Perform this morning. The price target range for shares of McDonald's was also lowered from $104 - $108, to $100 - $102. Wells Fargo says it downgraded McDonald's because it has lost market share in the U.S. in three of the last four months through November. It believes rivals like Wendy's (WEN) and Burger King (BKW) have raised the competitive bar. McDonald's shares are up only 6% since this time last year.