China announced plans to open its Shenzhen stock market for foreign investors, but it wasn't clear the new "through train" would see any more traffic than the lackluster Shanghai one.
Under the so-called Stock Connect, investors in Hong Kong will be able to buy stocks listed on China's Shenzhen stock exchange, home to many of the country's tech and consumer companies. In return, investors on the mainland will be able to buy stocks listed in Hong Kong. The arrangement was expected to be operational in around four months' time.
The new Shenzhen ties would be similar to the existing Shanghai-Hong Kong Stock Connect, which was launched in late 2014. The main difference between the two channels would be that the Shanghai one was launched with a quota on both daily and yearly trade totals, while only a daily quota was planned for Shenzhen. Regulators have also scrapped an existing aggregate limit of 300 billion yuan ($45.25 billion) on the Shanghai bourse, potentially paving the way for overseas investors to buy more Chinese stocks.
But analysts said removing that restriction likely wouldn't matter much as Shanghai's "northbound" quota ceiling for funds headed to the mainland was only reached once, on the program's first day.
Capital Economics noted that after nearly two years in operation, investment via the Shanghai-Hong Kong connect was less than 1.0 percent of the total market capitalization of both exchanges.
Opening up the stock market wouldn't necessarily change the fundamentals much, analysts noted, particularly as Shenzhen-listed stocks were considered expensive, often trading at 40-50 times earnings. Goldman Sachs noted that Shanghai trades around 26 times earnings.
"China still hasn't understood the value of building trustworthy markets. That's not changed. The fact that you can access it doesn't solve that fundamental problem," Fraser Howie, an independent analyst and the author of several books on China's financial system, told CNBC's "Street Signs."
"The pickup [of the Shanghai-Hong Kong connect] has never been that strong because I think the regulatory environment in China is still a very dangerous one. A very uncertain one, and therefore people hold back," he said.
But some analysts pointed to reasons foreign interest in Shenzhen's market might outstrip Shanghai.
For one, the types of stocks available differ significantly.