The online retailer's shares fell by more than 10% in grey-market trading ahead of the company's debut, according to Reuters.
The decline provides an early indication of investor sentiment towards a company whose rapid international expansion has made it one of the world's most recognisable fast-fashion businesses.
Shein's growth model is built around highly responsive supply chains, digital marketing and rapid product turnover. The model has enabled the company to expand internationally while competing aggressively on price.
However, the same characteristics that have driven its growth have also attracted scrutiny over labour practices, supply chains, environmental impact and regulatory exposure.
Investor concerns therefore extend beyond short-term earnings. The company must demonstrate that its growth model can remain profitable as regulatory requirements increase and competition intensifies.
The Hong Kong listing also comes at a challenging point for global consumer companies. Household purchasing power remains sensitive to inflation, while investors have become more selective about businesses whose valuations depend heavily on continued high growth.
A weak pre-debut performance could therefore be interpreted as a broader reassessment of the premium previously attached to fast-fashion expansion.
For Shein, the challenge will be converting its enormous consumer reach into a sustainable public-market investment proposition.
Aldrenor Assessment: Shein's weak pre-debut trading suggests that public investors may be applying a higher standard to fast-fashion growth. The company's next phase will require evidence that scale can translate into durable profitability while regulatory and reputational pressures intensify.
