Shares of Great Atlantic & Pacific Tea Co. (GAP), the holding company for the A&P grocery chain, are getting hammered today. The stock shed more than 15% by midday following a less-than-bullish article in The Wall Street Journal, with the newspaper describing GAP as "bludgeoned by lower-price rivals and strapped for cash."

After the turn of the calendar page, quarterly reporting resumes this week. Analysts surveyed by Thomson Reuters are expecting to see strong earnings growth from fertilizer producer Mosaic Co. (NYSE: MOS), biotech giant Monsanto Co. (NYSE: MON), and Neogen Corp. (NASDAQ: NEOG), which produces food safety and animal health products. Mosaic's estimated earnings per share of $1.43 for the fiscal second quarter would be 41.9% higher than a year ago, and its revenue estimate of $3.0 billion is 36.7% higher. Monsanto's $0.59 per share projection for the fiscal first quarter is 22.0% higher and sales of $2.4 billion are up 14.9%. And Neogen's second-quarter $0.25 per share would be 12.0% higher, while its sales of $32.3 million are up 18.6%. All three have tended to beat expectations in recent quarters, and all three have buy recommendations from a consensus of analysts. Mosaic and Monsanto have recently announced dividends, and their share prices have fallen 62.3% and 39.0%, respectively, from a year ago. The share price of Neogen, which recently announced share buybacks, is only 0.8% lower.

Other companies expected to post modest earnings gains when they report this week include education company Apollo Group Inc. (NASDAQ: APOL), WD-40 Co. (NASDAQ: WDFC), and wine and spirits maker Constellation Brands Inc. (NYSE: STZ).