Specialist Trader Neil Gallagher points to the ticker symbol for Alibaba Group Holding Ltd during the company's initial public offering (IPO) under the ticker "BABA" at the New York Stock Exchange in New York September 19, 2014. [Photo/Agencies]

WASHINGTON -- As China's e-commerce giant Alibaba Group surged high on their first trading day at the New York Stock Exchange (NYSE) Friday, US experts appealed to investors to look at the high-flying company in a rational way.

The stocks of Alibaba jumped 38 percent from the IPO price of $68 to $93.89 per share Friday, valuing the company at over $230 billion, compared with a market capital of $150 billion owned by its American rival Amazon.

"To the Western world, Alibaba represents a company that has created value in novel and innovative ways and also has been to sustain that value growth over a span of 10 years. So they are betting on Alibaba's ability to keep doing this," said Puneet Manchanda, professor of marketing at Ross School of Business, University of Michigan.

Investors have seen how other e-commerce companies like Amazon and eBay have grown rapidly and they do not expect Chinese consumers to behave differently from Americans and people in other countries, said Linda Lim, professor of strategy at Ross School of Business.

Besides, Alibaba's well-established reputation and its leadership in the e-commerce area in China, the world's fasting-growing economy, attracted investors naturally, Lim said.

Yet in spite of Alibaba's good start at NYSE and its obvious charm, experts were also cautious about its future growth.

"It is always hard to predict the future," said Amiyatosh Purnaanandam, professor of finance at Ross School of Business.

"But historically, a number of firms show very high growth rate just before their IPOs. More often than not these growth rates do not materialize in the long run, and the shareholders get disappointed with long-term returns," he said.

The current valuation of Alibaba is based on an expectation of 30-35 percent growth rate year-on-year, which will be an extremely hard task to achieve, he said.

Alibaba has good business foundations, but they are issuing IPO at a time when stock markets as a whole are at their historic peaks, which means that Alibaba's valuation is based on valuation of other companies at their peak, the professor said.

One reason that these firms have high valuation is the near-zero interest rate policy of the Fed, he mentioned.

Alibaba jumps more than 40% in trading debut	Alibaba makes its mark on Wall Street