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HomeInsightsEligibility 1 July 2026 · Last reviewed 14 July 2026

Chapter 18A & 18C Stock Loans: Financing Pre-Profit HKEX Listings

Part of the Hong Kong Stock Loan Regulatory & Eligibility Guide — view the full guide →

A decade ago, a founder who wanted to raise capital against a Hong Kong–listed holding almost always held shares in a company with earnings. Since 2018, that has changed. Two reforms to the HKEX Listing Rules — Chapter 18A for pre-revenue biotech, and Chapter 18C for Specialist Technology — have brought a generation of pre-profit issuers to the Main Board, and with them a distinct financing question: can a position in a company that does not yet make money be used as collateral, and if so, on what terms?

The short answer is that it often can, but that these names sit at the conservative end of a lender’s spectrum, and for reasons that are structural rather than incidental. Understanding why is more useful than any headline number — and, as always on this site, there is no headline number: no published rate, no LTV grid, and no universal figure. What follows is the framework a lender brings to a pre-profit position, not a schedule of promises.

What Chapters 18A and 18C actually are

Chapter 18A of the HKEX Listing Rules, introduced in 2018, permits pre-revenue biotech companies to list on the Main Board despite failing the conventional financial-eligibility tests. Their ticker carries a "-B" marker, and their defining characteristic, from a lender’s point of view, is that their value rests almost entirely on the expected outcome of events that have not yet happened: a clinical-trial readout, a regulatory approval, a licensing deal.

Chapter 18C, the Specialist Technology regime effective from 2023, extended a similar logic to companies in fields such as advanced hardware, advanced materials, new energy, new-generation information technology, and advanced manufacturing. It distinguishes between "Commercial" and "Pre-Commercial" companies, with the pre-commercial cohort subject to a higher market-capitalisation bar and additional safeguards precisely because they, too, are valued on promise rather than proven cash flow. For financing, a pre-commercial 18C name and a pre-revenue 18A name rhyme: both are collateral whose worth is contingent.

Milestone risk: the defining variable

The single feature that sets these positions apart is binary, event-driven volatility. A diversified industrial moves in percentages; a pre-revenue biotech can move in multiples on a single Phase III result, and can fall by a large fraction of its value in a session if a trial misses its endpoint. The distribution of outcomes is bimodal — clustered around "the science worked" and "it did not."

A lender secured against such a position is, in effect, short that binary event. The rational response is not to refuse the position but to price the risk: a wider haircut, a lower indicative loan-to-value band, close attention to the tenor relative to the issuer’s event calendar. This is why a Chapter 18A or pre-commercial 18C name is routinely financed far more conservatively than a stable holding of the same market value — often at roughly half the band a comparable position size in a mature sector might support. That ratio is illustrative, not a quote; the actual figure is reviewed one ticker at a time.

Liquidity, free float, and the event calendar

Milestone risk does not sit in isolation. Free float and average daily traded value apply here too, and often cut against a pre-profit name: many recently-listed issuers have a large founder or cornerstone block, a modest genuine free float, and thinner turnover than their market capitalisation implies. Our companion note on which HKEX stocks can be pledged sets out that screen in full; for pre-profit issuers it is simply applied with more caution. The event calendar becomes a structuring input: a lender wants to know where a facility’s tenor sits relative to a known readout or approval date.

Lock-ups, insider status, and disclosure

Two overlays apply with particular force to founders in recently-listed issuers. The first is lock-up: post-IPO, controlling shareholders and certain investors are subject to lock-up restrictions under the HKEX Listing Rules and their own undertakings, and shares that cannot yet be freely dealt with are difficult to treat as realisable collateral. The second is disclosure: a founder pledging a large stake is frequently a director or substantial shareholder, engaging the SFO Part XV Disclosure of Interests regime — including its director/chief-executive limb, which has no 5% floor. As our note on SFO Part XV disclosure explains, whether a pledge is notifiable is decided at the outset with the holder’s own Hong Kong counsel.

Why the market exists for these names at all

If pre-profit positions are harder to finance, why finance them? Because the need is real and the alternatives are worse. A biotech or deep-tech founder often holds the overwhelming majority of their net worth in a single, illiquid, lock-up-constrained stake, and may need capital for reasons unrelated to conviction in the company. Selling into the market signals doubt and can move a thin price against the seller. A carefully-structured, conservatively-sized stock loan lets the holder raise liquidity while retaining the upside they most believe in.

A pre-profit listing is not un-financeable — it is differently financeable. The milestone risk, the thinner liquidity, and the lock-up and disclosure overlays do not close the door; they set the terms behind it.

This article is educational and does not constitute legal, regulatory, tax, or investment advice, nor an offer or solicitation. All loan-to-value, tenor, and eligibility references are indicative and illustrative only; no fixed rate or LTV grid is published, and any indicative terms are issued only after review of a specific position. Whether and how the HKEX Listing Rules (including Chapters 18A and 18C and any lock-up undertakings), the SFO Part XV Disclosure of Interests regime, or the SFC Codes on Takeovers and Mergers apply to any transaction is a question for your own Hong Kong legal counsel, engaged in parallel with structuring. Hong Kong Stock Loans acts as an arranger and introducer in collaboration with SFC-licensed counterparties.

At a glance

Chapter 18A vs Chapter 18C at a glance
Feature Chapter 18A Chapter 18C
Effective year Introduced 2018 Effective from 2023
Company type Pre-revenue biotech; ticker carries a “-B” marker Specialist Technology — advanced hardware, advanced materials, new energy, new-generation information technology, advanced manufacturing; distinguishes “Commercial” and “Pre-Commercial” companies
Basis of value Value rests almost entirely on the expected outcome of events not yet happened — a clinical-trial readout, a regulatory approval, a licensing deal Valued on promise rather than proven cash flow; the pre-commercial cohort carries a higher market-capitalisation bar
Financing a pre-profit 18A/18C name vs a stable mature large-cap
Feature Pre-profit 18A/18C name Stable mature large-cap
Price behaviour Binary, event-driven volatility; can move in multiples on a single Phase III result and gap sharply on a single event Moves in percentages, like a diversified industrial; earnings to anchor value
Haircut Wider haircut for milestone and liquidity risk The reference against which the wider haircut is measured
Indicative LTV band Lower indicative band — often around half what a stable large-cap of the same market value would support; the ratio is illustrative, not a quote, and reviewed one ticker at a time Supports the fuller band a comparable position size in a mature sector might support
Free float & liquidity Free float and average daily traded value often thinner than an index constituent’s — a large founder or cornerstone block, a modest genuine free float, thinner turnover than market capitalisation implies Index-constituent free float and traded value

Edward Chan Wai-Lun, Founder & Managing Principal

Educational; not advice. Editorial standards · Disclosures

Common Questions
FAQ

Pre-profit specifics.

Q.01Can Chapter 18A biotech shares be used as collateral for a stock loan?
Chapter 18A biotech shares can often be used as stock-loan collateral, but they are financed far more conservatively than an established, cash-generative name. A Chapter 18A pre-revenue biotech carries binary milestone risk — a single trial readout or regulatory decision can move the price by a large multiple — so a lender applies a wider haircut and a lower indicative loan-to-value band, and scrutinises tenor, liquidity, and any remaining lock-up. Eligibility is assessed case by case; there is no published rate or LTV grid, and indicative terms are issued only after review of the specific ticker.
Q.02What is a Chapter 18C Specialist Technology company on HKEX?
Chapter 18C of the HKEX Listing Rules is the Specialist Technology regime, effective from 2023, which allows pre-commercial and commercial specialist-technology companies — in fields such as advanced hardware, advanced materials, new energy, and new-generation information technology — to list on the Main Board even where they do not yet meet the conventional profit or revenue tests. Like Chapter 18A biotech issuers, a pre-commercial 18C company can be highly valuation-sensitive, and a lender treats its shares accordingly.
Q.03Why is the LTV lower for pre-profit listings?
Loan-to-value reflects how confidently and cheaply a lender could realise the collateral in a stress scenario. A pre-profit biotech or specialist-technology name has no earnings to anchor value, its price can gap sharply on a single event, and its free float and average daily traded value are often thinner than an index constituent’s. Each of those factors widens the haircut, so the indicative band sits well below what a stable large-cap of the same market value would support — often around half, though the figure is illustrative and reviewed per name.
Q.04Do lock-up periods affect financing a Chapter 18A or 18C position?
Yes. Controlling shareholders, key investors, and cornerstone holders in a newly-listed company are typically subject to post-IPO lock-up restrictions under the HKEX Listing Rules and their own undertakings. Shares that cannot yet be freely dealt with are difficult to treat as realisable collateral, so the lock-up position is examined at the outset and the structure and tenor are calibrated around it. Whether a particular pledge is compatible with a holder’s lock-up undertakings is a question for the holder’s own Hong Kong counsel.
Q.05What loan-to-value is typical for a biotech or SpecTech stock loan?
There is no typical figure and no published grid. A pre-revenue Chapter 18A or pre-commercial Chapter 18C position is financed materially more conservatively than a liquid, cash-generative large-cap, with a wider haircut for milestone and liquidity risk. Indicative terms — including any loan-to-value band, tenor, and recourse profile — are issued only after a review of the specific position, its free float, its traded value, and its event calendar.

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