The Chinese ecommerce company Alibaba is launching its initial public offering the week of Sept. 8, and anticipation is building for its release. Speculation is saying that the IPO could be the largest of all time.

The rollout of shares will come in waves. The first stop on a tour where company executives and Wall Street bankers meet potential investors is in Asia and subsequent dates in Europe and the U.S., according to a source reported in Financial Times.

Alibaba is expected to raise around $20 billion when it first lists at the New York Stock Exchange. This would be in close contention with the Agricultural Bank of China's $22.1 billion IPO in July 2010, the current record holder.

The price of shares has not been announced yet, but will be shared just before the roadshow tour begins.

The mobile revenue that Alibaba has been able to harness has led to their recent success. The company reported last week that it increased mobile revenues in the second quarter.

Alibaba's internal valuation is currently $140 billion, up from $133 billion earlier in August.

"[IPO] prospectuses are very backward looking," Grace Su, a technology analyst at ClearBridge, said. "With companies that have very strong growth prospects, the roadshow will be helpful to pick management's brain about how the future growth rates will pan out."

The debut of Alibaba on public markets was pushed back from August while the tech business was vetted with all of the standard IPO processes with the U.S. Securities and Exchange Commission. Alibaba is currently finishing SEC conversations.

The tech industry in China and the U.S. will be closely following Alibaba's course as it ventures into the world markets. Alibaba has been acquiring many small startups at home and abroad.