Shares of Chinese memory-chip maker CXMT soared in their Shanghai technology-board debut, reflecting investor demand for domestic AI hardware capacity.
The Chinese memory-chip maker rose about 470 percent, briefly becoming the country's most valuable listed company.
CXMT shares rose about 470 percent when trading began on Shanghai's technology board Monday.
The debut gave the company an estimated market capitalization of 3.3 trillion yuan, nearly $490 billion.
AP reported that the valuation made CXMT China's most valuable listed company during the debut session.
The listing occurred as Asian equity markets broadly rose and oil prices fell after the U.S.-Iran pause.
Memory chips are used to store and move data in servers and accelerators supporting artificial-intelligence workloads.
The trading surge represented investor pricing at the market open rather than a change in the company's physical production that day.
Chinese semiconductor policy has emphasized domestic supply as U.S. controls restrict access to some advanced chips and manufacturing equipment.
AI infrastructure demand has raised the strategic and financial value of high-bandwidth and server memory.
First-day price moves can be amplified by share-allocation rules, limited float and speculative demand.
The evidence supports a bounded conclusion: Shares of Chinese memory-chip maker CXMT soared in their Shanghai technology-board debut, reflecting investor demand for domestic AI hardware capacity. It does not resolve the remaining uncertainty because The initial valuation did not establish long-term profitability, production yields or technical parity with global memory leaders. The factual horizon is therefore defined by Post-listing price stabilization and financial disclosures and Independent data on output, yields and customer adoption.
The current reporting limit is specific: The initial valuation did not establish long-term profitability, production yields or technical parity with global memory leaders.
The next verifiable developments are Post-listing price stabilization and financial disclosures and Independent data on output, yields and customer adoption.