Chinese IPOs accounted for about a fifth of all proceeds from initial public offerings in the U.S. in the first three months of 2018, according to Renaissance Capital. Eight Chinese companies raised $3.3 billion during that period, with Baidu's (BIDU 1.59%) video streaming unit iQiyi (IQ 0.84%) leading the pack with a $2.3 billion raise.

That enthusiasm indicates that despite the escalating trade tensions between the U.S. and China, investors are still drawn toward high-growth companies in the second largest economy in the world. However, investors who are interested in Chinese IPOs should consider these things first.

A Chinese flag with skyscrapers in the background.

Image source: Getty Images.

Understand the ownership structure

Many Chinese companies which go public in the U.S. are subsidiaries of larger companies. SINA spun off its microblogging site Weibo in 2014, but retained a majority voting stake in the company. Baidu also retained a majority stake in iQiyi after its recent spin-off.

Both companies spun off those subsidiaries for clear reasons. Weibo faced tough competition from Tencent's WeChat and increased scrutiny from regulators. iQiyi was a money pit for Baidu, so spinning it off improved its bottom-line growth.

Other Chinese IPOs initially seem like independent companies, but they're not. Wearables maker Huami (HMI 5.04%), for example, actually lets its partner Xiaomi shoulder all of its design, operating, and marketing expenses. If Xiaomi ever cuts ties with Huami, the latter would instantly become unprofitable.

Many Chinese IPOs are also backed by other big companies. It's not unusual for Tencent and Alibaba (BABA 3.34%) to buy double-digit percentages of newly public Chinese companies to expand their ecosystems. That support might indicate that the company has decent growth potential. Understanding the overlapping relationships between all these companies can help you separate the good IPOs from the bad.

Understand how ADRs work

American depositary receipts are not the same as stocks. They're certificates issued by a U.S. bank and represent shares of foreign companies. The actual shares are held by a custodian bank in the company's home country.

Investors should note that custodian banks usually charge ADR custody fees for holding the shares and paying out the dividends in U.S. dollars. These fees generally range between $0.01 and $0.03 per share.

Taxes on dividends can also be withheld by the company's home country. This is generally done automatically, but the taxes paid can be used as credit against an investor's U.S. taxes.

Be skeptical of market-share claims

Investors should also be wary of small companies that make big market-share claims. A large number of smaller Chinese companies cite market-share figures from Frost & Sullivan, a consulting firm which often makes bold claims based on cherry-picked data points.

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Image source: Getty Images.

Frost & Sullivan claimed that Chinese e-commerce site Secoo (SECO -2.00%), which went public last September, controlled 25% of China's online luxury-goods market. That percentage is hard to verify, since market leaders Alibaba and JD don't report luxury sales separately. But it gave investors the false impression that Secoo -- which generates well below 1% of Alibaba's or JD's annual gross merchandise volumes -- was a much larger e-commerce player.

Frost & Sullivan also claimed that Singapore-based online gaming and e-commerce company Sea (SE) was the largest e-commerce player in Southeast Asia -- a title usually given to Alibaba's Lazada. It turned out that Frost & Sullivan included Taiwan -- a market which Lazada doesn't operate in and isn't usually included in the Southeast Asia category -- to reach that conclusion.

I'm not accusing Frost & Sullivan of any wrongdoing, but I generally avoid any Chinese IPOs that cite the firm's market-share figures in the prospectus.

Understand the micro and macro threats

Lastly, investors should always read the "risk factors" section in the prospectus to understand a company's headwinds. Smaller e-commerce players could be marginalized by Alibaba or JD, streaming video companies like iQiyi could remain unprofitable for a long time, while companies which produce commoditized hardware -- like Huami's wearables -- could see their growth grind to a halt.

On the macro level, escalating trade tensions and a slowdown in the Chinese economy could throttle a company's growth. A weaker yuan and a stronger dollar could also gradually reduce the value of your ADR shares and their dividends.

The bottom line

Chinese IPOs can offer big returns, but investors should know how to separate the winners from the losers. Investors who can't tell the difference could end up with lemons like Secoo, Sea, or Huami -- which all trade below their IPO prices due to glaring issues with their businesses.