A tiny Chinese financial company is causing a stir among some US investors. China Commercial Credit, whose subsidiary underwrites microloans to small companies in China's Jiangsu province, emerged from its first week of trading on the Nasdaq, up 40 percent to around nine dollars per share. Is this a sign of renewed interest in Chinese stocks in the US? And what does it mean for China's shadow banking system?

For China Commercial Credit, this was a volatile first week that ended on a high note.

Its US reception when it launched August 14th was lukewarm-with the IPO raising only $8.9 million dollars.

It listed at $6.50 per share, but stocks fell two percent on Day One, then spiked and slipped before closing the week nearly 60 percent up, as the top performing stock.

The positive reception has surprised a few market watchers partly because China Commercial Credit, which lends to small companies and farmers in China's Jiangsu province, is part of the country's so-called "shadow banking" system, in which lenders operate without regulatory oversight.

China Commercial Credit is only the second Chinese stock to list in the US so far this year, after accusations of improper accounting by some Chinese companies last year provoked many US investors to pull out of Chinese stocks, and likewise spurred many Chinese firms to pull out of the US stock market.

But China Commercial Credit may be a stock to watch-thanks to company Chairman Qin Huichun.

Listing on Nasdaq enables him to raise capital to underwrite more loans to small and medium-sized businesses in China where demand for credit is soaring. His bank is the first Chinese lender to raise money in a foreign market, and he also reportedly harbors designs on one day acquiring a US bank.

If China Commercial Credit manages to sustain US investor interest, Qin may well defy the odds, and get his way.