Stock Connect eligibility has three separate tests: whether you can use the service, whether the security is available through the relevant trading link, and whether your proposed order is permitted. Passing one does not settle the others. A stock can appear on an exchange’s eligible list yet remain unavailable to your account.
This guide focuses on Northbound access, where Hong Kong and overseas investors trade selected mainland Chinese securities. It separates investor restrictions from security selection and explains what to check before committing money. For the wider account, custody and trading process, see how Shanghai and Shenzhen Stock Connect work.
Who Is Eligible for Northbound Stock Connect?
Hong Kong and overseas individual and institutional investors can generally trade eligible Northbound securities. However, direct trading in Shanghai’s STAR Market shares and Shenzhen’s ChiNext shares is reserved for institutional professional investors. Being an experienced retail trader, holding a large portfolio or receiving a broker’s professional-client label does not, by itself, establish that institutional classification.
Mainland investors face a separate restriction: they cannot make proactive Northbound purchases through Stock Connect. Existing holdings can be sold under the prescribed arrangements, and passive receipts from corporate actions receive different treatment. Investors with mainland identity documents or a change in residency should ask their intermediary to confirm their classification rather than infer eligibility from the location of their brokerage account.
Investor eligibility also does not override foreign ownership controls. The general A-share framework includes a 10% individual foreign investor limit and a 30% aggregate foreign ownership limit. Northbound purchases can be blocked when aggregate foreign holdings reach 28%, before the aggregate ceiling is breached. Excess holdings can trigger forced-sale arrangements. These investor and ownership restrictions appear in the HKEX Stock Connect frequently asked questions.
For a prospective account holder, the practical question is not simply “Does this broker offer China?” Ask whether it accepts your residency, supports Northbound trading through the entity holding your account, and permits the securities you intend to buy. Obtain confirmation for the actual account, not a marketing page covering the broker’s services across several countries.
Northbound and Southbound Requirements Are Different
Do not use Southbound eligibility requirements to decide whether you qualify for Northbound trading. The direction matters: Northbound concerns access to mainland securities, while Southbound concerns mainland investors’ access to eligible Hong Kong securities. Requirements quoted without that distinction can answer the wrong question very efficiently.
When comparing account documentation, look for the terms “Northbound,” “Shanghai Connect” and “Shenzhen Connect.” A general permission for Hong Kong shares is not the confirmation you need. Likewise, permission for Shanghai should not be treated as proof that Shenzhen trading has also been activated.
Which Securities Are Available?
The Northbound investable universe consists of selected A-shares and eligible mainland-listed ETFs, rather than every product traded in Shanghai or Shenzhen. Selection follows exchange rules and review procedures. The following framework explains the main entry routes, but it is not a substitute for checking the current eligible list.
| Security category | Main selection framework | What investors should check |
|---|---|---|
| Shanghai A-shares | Qualifying SSE A Share Index constituents, or qualifying A-shares with corresponding Hong Kong H-shares | Current inclusion, board classification and trading status |
| Shenzhen A-shares | Qualifying SZSE Composite Index constituents, or qualifying A-shares with corresponding Hong Kong H-shares | Current inclusion and any ChiNext investor restriction |
| Mainland ETFs | Funds meeting size, trading-history, benchmark and portfolio eligibility requirements | The ETF’s own eligibility, not just its underlying holdings |
Shanghai Shares and Mainland ETFs
For Shanghai’s index-based route, the ordinary entry tests include six-month daily averages of at least RMB5 billion in market capitalization and RMB30 million in turnover, with suspension days below 50% of trading days. Risk-alert shares and shares not traded in renminbi are excluded. Shares with differentiated voting rights face further conditions.
Northbound ETF entry requirements include at least RMB500 million in average daily assets over six months, six months of listing history and a benchmark published for at least one year. The benchmark must meet separate 60% minimum weights for mainland-listed stocks and Northbound-eligible stocks, alongside further index requirements. These tests are set out in the Shanghai Stock Exchange’s Stock Connect eligibility framework.
The distinction between stock and ETF eligibility matters. Do not assume that an ETF becomes available because it owns eligible companies. Nor should you assume that an ETF permission grants permission to buy every underlying share directly. Check the instrument you will actually hold.
For portfolio selection, examine the fund’s benchmark, concentration and holdings after establishing access. An eligible sector ETF may satisfy the trading rules without providing the breadth you want. Eligibility answers whether the route permits the purchase; it does not answer whether the investment fits your portfolio.
Shenzhen’s Selection Framework
Shenzhen’s expanded framework uses the SZSE Composite Index, rather than the narrower index selection described in older material. The expansion introduced a RMB5 billion market-capitalization threshold and liquidity criteria, while retaining the A+H inclusion route. The change is documented in the Shenzhen Stock Exchange announcement on expanded Northbound coverage.
This is a useful warning when researching access: an official page can still describe an earlier version of a programme. Check publication dates, subsequent amendments and the current security list together. A search result mentioning an old threshold should not outweigh a newer exchange notice.
Also separate the exchange from the board. “Shenzhen-listed” is not a sufficient description for account eligibility. Record whether the share belongs to the Main Board or ChiNext before asking an intermediary to investigate a rejected order.
How to Check the Current Eligible Securities List
Use the HKEX Northbound eligible securities lists to distinguish securities available for both buying and selling from “Special” securities available for selling only. The page also separates Shanghai and Shenzhen and provides change notices and lists for margin trading and short selling.
Search by the exact mainland security code and exchange, not the company’s English name alone. Record the instrument type and whether the entry permits purchases. Then compare that information with the instrument shown in your trading platform.
A disciplined check follows four steps:
- Identify the instrument: confirm the exchange, security code, share class or ETF, and trading currency.
- Check its status: establish whether it is available for both buying and selling or selling only.
- Read the effective date: distinguish an announced change from a change already in force.
- Confirm account access: ask the intermediary whether that instrument is supported for your account and investor category.
Keep a dated record when investigating an access problem. “It was eligible last month” is less useful than a security code, list date and rejection message. That small amount of record keeping can turn a vague support exchange into a question someone can answer.
What Sell-Only Status Means for a Portfolio
A sell-only designation permits disposal through the relevant link but not new purchases. Treat it as an access constraint, not an instruction to sell immediately. Your investment assessment and the available trading permissions are separate decisions.
Suppose your portfolio holds 1,000 shares and your rebalancing plan calls for another 200. If the security is now sell-only, the intended top-up cannot proceed through that route. Review the allocation before substituting another investment just to complete the rebalance.
Likewise, do not treat sell-only status as a promise of an immediate exit. Before placing an order, check the current trading status and available market. A permission to sell and a completed sale are not the same thing.
Daily Quotas Can Restrict Otherwise Eligible Purchases
Northbound trading has separate daily quotas of RMB52 billion for Shanghai Connect and Shenzhen Connect. These operate on a net-buy basis, reset daily and do not carry unused capacity forward. Sell orders and cancellation requests remain permitted regardless of the quota balance, under the Shanghai Stock Exchange’s Stock Connect quota arrangements.
The quota is shared market capacity, not an allowance reserved for each investor. It should therefore sit in a different category from your account’s buying power. Having enough cash does not resolve an exchange-level quota restriction.
If a purchase fails, ask whether the problem concerns the security, your investor classification, available quota or the order itself. Avoid repeatedly changing the price before identifying the cause. A higher bid cannot repair an eligibility restriction.
When planning a purchase, decide how long the investment case remains valid and what would justify waiting. Do not let an access delay become a reason to chase a different security without research. Administrative friction is not an investment thesis.
Broker Permissions and Trading Restrictions Still Apply
Exchange eligibility does not guarantee that every intermediary offers every permitted service. Account documentation should identify the available service scope, including any margin financing, borrowing or short-selling arrangements. The SFC circular on providing Stock Connect dealing services requires client disclosures and operational controls covering these areas, alongside trading restrictions, shareholding obligations and pre-trade checks.
For ordinary purchases, ask how the intermediary handles account activation, currency conversion, available cash and rejected orders. For a more involved strategy, request written confirmation of the service you need. “Stock Connect supported” is too broad to establish that borrowing or margin facilities are available to you.
Keep three permissions separate: permission to access the market, permission to trade the instrument, and permission to use the intended strategy. A cash purchase, a financed purchase and a short sale should not be treated as interchangeable requests.
Before opening or moving an account, use the questions in choosing a broker for Chinese stocks to compare service coverage. Prioritize the instruments and account type you expect to use, rather than the longest advertised market list.
Diagnosing a Rejected Order
Start with the rejection message and preserve its exact wording. Then send support the security code, exchange, order direction, quantity, order time and account type. Ask whether the rejection came from the intermediary’s controls or the exchange route.
A useful request would read: “Please confirm whether this Northbound buy order failed because of investor eligibility, security status, account permissions or an order-validation rule.” That is more productive than asking why the platform will not buy “a Chinese stock.”
For session times, settlement and order mechanics, use the separate guide to Chinese stock trading rules. Establish access first, then check how the permitted trade must be submitted.
Build an Eligible Watchlist Before Building the Portfolio
Create your research watchlist with access fields alongside valuation and business information. Include the exchange, code, board, Northbound status, date checked and account permission. Recheck those fields before adding to a position rather than treating the original purchase as permanent proof of access.
If a desired investment is unavailable, define what exposure you actually wanted before considering an alternative. Was the aim ownership of that company, exposure to an industry, or a broader allocation to mainland equities? Different answers call for different research.
The most reliable approach is straightforward: verify the investor, verify the instrument, then verify the order. Stock Connect provides a route into selected mainland securities, not unrestricted access to everything carrying a Chinese ticker.