Amid all the tumult that sent stocks tumbling yesterday, some investors missed a big story. Corn prices gapped up more than 29 cents a bushel, or 9 percent, Wednesday. Chicago wheat was taken along for the ride, climbing 25 cents, or nearly 6 percent, but not soybeans. Beans rallied along with the grains, but gave up at the end of the day to settle down more than 2 cents.

• Why China wants U.S. corn
• Can the higher prices continue?
• Will soybeans and wheat also rally?

• Diversification: how 5 different grains stack up
• One good fund for ag exposure
• Don’t be fooled by ‘no correlation’

Marie Antoinette's insensitivity to peasants' lack of bread, among other things, was paid for with a trip to the guillotine. "Let them eat cake" was an impolitic thing to say during the Reign of Terror. Not so now.

• Oil is going to $80
• Gold still has a place
• Monsanto as a core holding

In case you haven't noticed, several commodities have swung to a bullish mode now, particularly RBOB gasoline, the soybean complex and corn. Less well-developed are the trends in the petroleum complex, softs such as coffee, sugar and orange juice, feeder cattle and wheat.

With the flooding in Fargo swamping wheat and the USDA prospective plantings on tap, HAI examines the outlook for corn, soybeans and wheat.

• Why the massive flood isn't moving prices
• The global wheat glut
• Soybean fever

• The contango headwind
• The energy drag
• A few notable winners