$Adlai Nortye(ANL.US)$ why is it saying no trading in this stock when I try to buy?

$SoftBank Group (ADR)(SFTBY.US)$ Chip giant ARM, a subsidiary of SoftBank Group, officially submitted IPO application documents on September 5, local time, which showed that the company's ADS per share was priced between US$47 and US$51, and it is expected to issue a total of 95.5 million ADS shares. According to media reports, ARM’s overall valuation reaches US$64 billion (approximately RMB 468.4 billion), far surpassing NVIDIA and making it the world’s largest IPO project this year.