The Gold Report: Before we get into how to invest in warrants, please tell our readers what a warrant is.

Dudley Baker: Very simply, a warrant is a security that gives the holder the right, but not the obligation, to purchase the underlying common shares at a specific price and includes a specific expiration date.

Rio Tinto (NYSE: RIO), the British industrial minerals firm, is so bullish on China it is spending $2 billion to increase production of iron ore in Australia by 25 percent.

While there was plenty of chatter Monday morning around American Airlines emerging from bankruptcy and merging with US Airways, let's take a look at a rare buying opportunity in Airlines stocks this afternoon.