HK stocks face HKD255 billion lock-up expiry wave in July

Hong Kong's stock market faces a record wave of selling pressure, with shares worth at least HKD255 billion set to see their lock-up periods expire in July — the largest monthly total for the remainder of 2026, according to HKEX data cited by Bloomberg.

Goldman Sachs estimates that the total value of lock-up expiries tied to Hong Kong IPOs will reach USD274 billion over the next 12 months, setting a new high for any rolling 12-month period, the bank said in a note.

Historical precedents show share prices typically face moderate downward pressure after lock-ups expire. The median decline reaches 4% within three months and widens to 7% after six months, according to the data. Companies facing expiries in July include MINIMAX-W (00100.HK), KNOWLEDGE ATLAS (02513.HK), INSILICO (03696.HK) and BIREN TECH (06082.HK) — all of which have posted sharp gains since their listings.

The expiry wave threatens to cap gains in Hong Kong's IPO market, which has drawn renewed investor appetite. With USD274 billion in potential selling over the next year, fund managers may need to factor in lock-up overhang when positioning in recently listed names.

July's HKD255 billion test

July's HKD255 billion expiry dwarfs other months in the second half of 2026, creating a concentrated period of potential selling. The four named stocks — all high-profile IPOs that have rallied sharply post-listing — are among the most exposed. MINIMAX-W, an AI company, and KNOWLEDGE ATLAS, a data infrastructure firm, have been standout performers, while INSILICO and BIREN TECH have also drawn strong investor demand.

The lock-up structure typically restricts pre-IPO investors and company insiders from selling for a set period, usually six to 12 months after listing. When those restrictions lift, early backers may seek to cash out, particularly after significant share price appreciation.

Historical patterns and positioning risk

The median 4% decline within three months of expiry and 7% within six months suggests the selling pressure is not immediate but builds over time. For institutional investors holding these names, the overhang may warrant hedging strategies or position trimming ahead of expiry dates.

The broader Hong Kong market has shown resilience this year, but the lock-up wave introduces a structural headwind that could weigh on the Hang Seng Index's ability to sustain gains. Traders will be watching for early signs of insider selling as July approaches, with volume patterns and Stock Connect flows offering clues about distribution.

This article is for informational purposes only and does not constitute investment advice.