CXMT IPO liquidity worries weigh on China tech shares

The CXMT IPO liquidity debate has become a focal point for Chinese equity investors after ChangXin Memory Technologies raised $8.6 billion ahead of its expected July 27 debut on Shanghai’s STAR Market, according to CNBC. Analysts said the offering by China’s largest memory chipmaker is prompting some investors to sell existing holdings to fund bids for the new shares, adding to pressure on technology stocks already hit by a broader semiconductor retreat.

CNBC reported that the deal is Asia’s largest IPO so far this year. The listing comes as the STAR 50 Index, which follows the biggest and most liquid companies on Shanghai’s technology-focused STAR Market, has fallen almost 20% this quarter.

Tim Sun, senior researcher at HashKey Group, told CNBC that expectations for CXMT’s valuation to exceed 1 trillion yuan, or about $139 billion, are intensifying concerns about a short-term liquidity squeeze. If CXMT reaches that scale, Sun said, it would become a major constituent in STAR Market and semiconductor benchmarks, requiring index funds, active managers and sector-focused funds to shift money toward the stock.

That anticipated reallocation is already affecting investor behavior, according to Sun. He said investors have been reducing exposure to areas that previously led the rally, including memory chips, semiconductor equipment and companies tied to domestic substitution themes.

Why is the CXMT IPO affecting Chinese tech stocks?

A large IPO can create a cash call effect: investors sell shares they already own to free up money for an offering they expect to be popular. In China, that effect can be stronger because retail investors dominate daily turnover and IPO allocations often use lottery-style mechanisms, according to Benjamin Cavender, managing director at CMR Consulting.

HSBC data cited by CNBC show retail investors account for around 90% of daily trading in China’s equity market, compared with about 25% in the United States. Cavender said it was plausible that CXMT’s size was creating a near-term liquidity effect, especially in the STAR Market and among semiconductor and artificial intelligence-related stocks.

Analysts cautioned that the IPO is not the only force behind the sell-off. Sun said crowded positioning and high leverage in China’s A-share technology sector were the main causes of the pullback. He also pointed to weakness in Korean chip stocks, which he said had affected global semiconductor valuations and encouraged profit-taking in China.

Cavender similarly described CXMT as a catalyst for concerns that were already present. He said cash tied up for the IPO could return to the market after allocations are finalized and the shares begin trading. A longer effect would depend on whether investors believe China’s market will need to absorb a continuing pipeline of large semiconductor, AI and national-champion listings, he told CNBC.

Peter Alexander, founder of Z-Ben Advisors, told CNBC that money was being drawn from the secondary market before the listing. He said initial demand could be strong, with the shares possibly rising sharply in the first one or two trading sessions before CXMT and the wider market find a new balance.

Beyond the immediate market effect, Counterpoint Research told CNBC that the capital raised could help CXMT expand production capacity and strengthen its role in the global memory industry. The company is a producer of DRAM, a form of semiconductor memory that temporarily stores data while devices such as computers, smartphones and AI servers are operating.

This story draws on original reporting from CNBC.