Summary
China's STAR Market (科创板) semiconductor index, the STAR50, has jumped 75% over the past three months. The driver isn't improved earnings at individual companies — it's supply. As ChangXin Memory Technologies (CXMT), China's largest DRAM maker, gears up for an initial public offering (IPO) with a valuation of 554 trillion won, the index is already pricing in the listing premium for this heavyweight deal. For SK Hynix and Samsung Electronics, the news that a competitor is about to raise massive capital is nothing to smile about.
What Happened
CXMT has so far remained unlisted, expanding its DRAM production capacity using funding from China's state-backed semiconductor self-sufficiency drive along with its own retained earnings. If this STAR Market listing goes through, the company is expected to be valued at around 554 trillion won — one of the highest valuations among Chinese semiconductor firms. Launched by the Shanghai Stock Exchange in 2019 as a market dedicated to tech stocks, the STAR Market is often referred to as China's answer to the Nasdaq.
The STAR50's 75% rally over three months can't be explained by listing expectations for CXMT alone. It should instead be read as the combined effect of index-inclusion expectations ahead of a major IPO, passive fund inflows, and a broader re-rating of China's semiconductor value chain. For Chinese authorities, a successful listing by the country's largest memory chipmaker is also a symbolic milestone that reinforces the narrative of semiconductor self-sufficiency.
Structural Background
The DRAM value chain runs from materials (wafers, photoresist) through equipment (lithography, deposition, etching) to foundry (production) and finished sets (modules and SSD customers). CXMT is an integrated device manufacturer (IDM) that handles both design and production, but it remains heavily reliant on imports for the lithography equipment needed for leading-edge processes. In other words, how fast CXMT can expand capacity depends not just on the funds raised through its IPO but also on how quickly it can bring in equipment and whether export controls ease. Capital alone can't expand capacity on paper if the equipment isn't there.
Stock (Ticker) and Sector Impact
- SK Hynix - competes directly with CXMT in the commodity DRAM market. If CXMT raises substantial capital through the listing and moves ahead with capacity expansion, the resulting supply increase in commodity DRAM could weaken its pricing power.
- Samsung Electronics - given how much DRAM contributes to its memory division's revenue, expanded supply out of China could act as a medium-to-long-term downward pressure on prices.
- Domestic semiconductor equipment and materials stocks - as long as export controls on China remain in place, the direct benefit from CXMT's capacity expansion is limited; however, if controls ease, it could open up unexpected order opportunities.
Bullish vs. Bearish Scenarios
In the bullish scenario, a successful CXMT listing triggers a broader re-rating of China's semiconductor value chain, which could also lift revenue expectations for Korean equipment and materials suppliers doing business with China. The rise of Chinese memory makers could also serve as a wake-up call that accelerates Korean firms' shift toward higher value-added products.
The bearish scenario centers on valuation and oversupply concerns. If the 554 trillion won valuation is seen as excessive relative to current revenue and profit fundamentals, a post-listing correction could chill sentiment across the STAR Market broadly. More fundamentally, if CXMT's capacity expansion translates into actual utilization, the resulting increase in commodity DRAM supply could bring forward the timing of the next down-cycle.
Investor Action Points
- Watch disclosures on CXMT's IPO price and formal listing schedule.
- Monitor the STAR50 index's P/E and P/B valuations and the durability of fund inflows.
- Check SK Hynix and Samsung Electronics' guidance on DRAM average selling price (ASP) and utilization rates for the next quarter.
- Track the pace of disbursement from China's semiconductor self-sufficiency funds (such as the "Big Fund") and any easing of export controls.
This article was automatically summarized and analyzed based on the original news report. View original (Maeil Business Newspaper, Securities)
