In a twist that surprises absolutely no one who's ever read a supply chain exposé, fast-fashion giant Shein watched its shares tumble in its long-awaited Hong Kong debut on Tuesday, proving that the market's appetite for ultra-cheap dresses might have its limits.

The company, which once dreamed of a $100bn valuation, now finds itself worth roughly a quarter of that - $26.3bn to be precise - after pricing its shares at HK$48.56 each and raising a solid HK$13.6 billion ($1.7bn; £1.3bn). But by lunchtime, shares were down about 3.5% to just under HK$47, after earlier plunging as much as 10%.

It's a far cry from the glory days when Shein was the undisputed queen of 'Shein Hauls' and pandemic-era online shopping. But as CFO Leigh Gui proudly declared at the listing ceremony - after a gong was struck, naturally - the company's model of selling massive volumes of tiny orders now reaches about 160 markets worldwide. "Let global consumers enjoy the sound of fashion," he said, presumably over the sound of regulators sharpening their pencils.

Shein's road to the stock market has been more winding than a Zara knockoff's hemline. Failed attempts in the US and UK were derailed by concerns over labour practices, environmental impact, and designer copyright infringements - all of which the company has addressed with the usual corporate platitudes: a "zero-tolerance policy for forced labour" and a promise to "respect the rights of all designers."

So it turned to Hong Kong, which, as Ashley Dudarenok of ChoZan put it, was the only venue left standing: "Shein ran out of venues that could take it." The company even tried to "look less Chinese" by moving its HQ to Singapore, but it never won political backing abroad nor assurances from Beijing. For Chinese firms increasingly shut out of Western exchanges, Hong Kong is becoming the only path to market - a bit like the last open checkout lane at a busy supermarket.

Investors, however, are not exactly lining up. "Investors have learned to be sceptical," said fashion industry analyst Louise Deglise-Favre from GlobalData, pointing to the battered shares of rivals Asos and Boohoo as cautionary tales. The disappointing debut suggests the market isn't convinced Shein's growth can make a "comeback," according to Charu Chanana, chief investment strategist at Saxo.

Shein's numbers are still eye-popping - more than 273 million active customers placed over a billion orders in the year to March 2026 - but the company is bleeding money. In July, it reported a $99m quarterly loss after the US killed the "de minimis" import duty exemption, which had allowed packages under $800 to slip into the country duty-free. The EU slapped a €3 (£2.57; $3.50) tax on low-value imports, and the Iran war has hit demand, raised costs, and delayed deliveries. Even Temu-owner PDD missed revenue expectations in August.

And let's not forget the regulatory investigations by US and European authorities, plus the fact that rivals are now using predictive technology to make their websites just as addictive. "Shein is not longer a unique player," said Jason Hsu from Rayliant Global Advisors, with a grammatical flair that matches the company's ethical standards.

Founder Xu Yangtian, usually as publicity-shy as a factory inspector, made a rare appearance at a Guangdong business conference in February to re-affirm his company's ties to Beijing, pledging investments in China's clothing industry and gushing that the country's "nourishment" has been "inseparable" from Shein's success. Because nothing says 'global brand' like a founder cosying up to the CCP.

Despite all this, some analysts see potential. Deglise-Favre notes Shein still has a "formidable supply chain" and global reach, but the valuation slump shows "genuine deterioration." Dudarenok adds that as a listed company, Shein must "prove its margins still work in a world of tighter regulation, tariffs and more expensive customer acquisition."

For consumers, the share price slump might be the real fashion statement: those $12 dresses are getting harder to sustain, and prices may go up. So enjoy the Shein Hauls while you can - the party might be ending, and the hangover is going to be expensive.