Riding a bicycle in Melbourne’s autumn is like playing with fire, reader. The weather changes a lot quicker than we can ride.

Gold and oil both traded down about 2.5% overnight in New York. The Fed is meeting in Washington, D.C. We’ll know soon what, if anything, it plans to do. But does it really matter?

Remember last week when the director of the Brazil National Petroleum Agency Haroldo Lima told the world that the Carioca oil field, “Could be the world’s biggest oil discovery in thirty years?” Let’s unpack the word “could.” It “could” be the world’s biggest oil field that will never enter into production.

There are lots of reasons why a small company share can go up in price quickly. Usually it’s an innovative new product, a new market, or, in some cases, a sudden change in the market value of a good, product, or service.

“Who is the predator and who is the prey? That is what we wonder today.”

“Is China preying on BHP Billiton (ASX: BHP)? Or is BHP preying on Rio? Who are the barracudas and who are the minnows?” asks Dan Denning of the Daily Reckoning Australia.

Steel prices are up by about 10% this year already.