So PetroChina (NYSE:PTR) went public in Shanghai to great fanfare and now the company has a market-cap of over $1 trillion. This gives the company a valuation greater than that of both General Electric (NYSE: GE) and Exxon Mobil (NYSE: XOM) combined. Not bad considering the company has revenues of just 1/4 that of Exxon. With all due respect to the growth of the Chinese economy, this is a bit ridiculous. Can we even believe the numbers they are reporting? We all talk about the lack of transparency in U.S. corporate earnings (see financial stocks of late); it's 100 times worse in China.

The Chinese stock market has had an amazing run, but what comes up must come down. With all the recent IPO's that have skyrocketed, it sure has the feel of NASDAQ 2000 all over again. Then people used to invest if the ticker symbol had 4 letters. Now people will throw money at anything that has to do with China. Irrational exuberance? You bet!

Will the communist government of China allow the stock market to fall before the 2008 Olympics in Beijing? Probably not, but a bubble has been created and investors should better be forewarned.