AI Rally Pushes A-H Premium to Near One-Year High
Nashnova编辑部
A-shares of 202 dual-listed Chinese companies now trade at a ~23% average premium over their Hong Kong counterparts, near a one-year high — the AI rally and state-fund buying are pulling the two markets in opposite directions.
How wide is the A-share premium?
The Hang Seng A-H Premium Index tracks 202 companies listed in both Shanghai/Shenzhen and Hong Kong. A-shares currently trade at roughly 23% above their H-share equivalents.
This means → the same company, same fundamentals, costs nearly a quarter more to buy on the mainland than in Hong Kong.
The premium is approaching a near one-year high — the gap is widening, not closing.
What is driving the premium wider?
Two forces are pushing A-shares up simultaneously: state-backed funds buying A-shares directly to cushion global sell-off pressure, and an AI-sector recovery lifting tech-hardware valuations.
In plain terms = policy money props up the floor while AI hype bids up the ceiling — both forces inflate A-share prices at once.
Hong Kong, with limited direct exposure to the AI supply chain, has underperformed this year — stretching the gap further.
Is it normal for A-shares to trade above H-shares?
Huachuang Securities analyst Yao Pei notes the A-H premium reflects long-standing structural differences: short-selling access, transaction costs, liquidity, and FX risk.
In plain terms = Hong Kong makes it easier to short, charges higher trading fees, and weights low-valuation financials heavily in its index — all of which keep H-share valuations structurally lower.
Historically, an A-share premium is the norm. It inverted only during deep mainland bear markets such as 2006 and 2014.
Can the premium keep widening?
Two variables matter most: whether the AI capex narrative holds, and whether state-fund buying continues.
This means → if AI hardware orders slow or policy capital pulls back, the current premium could narrow quickly.
This reflects a broader point: today's elevated premium is not organic market pricing — it is a product of policy support plus thematic momentum, both of which carry real uncertainty.
Content is for reference only, not financial advice.