How to invest in stocks in Hong Kong: a beginner’s guide grounded in evidence

Most people assume that picking the right stocks is what makes investors successful. Decades of real-world data suggest the opposite. In a landmark study of roughly 66,000 US brokerage accounts, the investors who traded most actively earned annual returns about 6.5 percentage points below the market — mainly because “activity” in and of itself is costly (past performance is not necessarily a guide to future performance or returns.)

This guide takes a clear position: for a beginner, the decisions that matter most are not related to stock selection. How you access the market, how much you pay to hold your investments, how widely you diversify, and how you behave in a downturn are likely to shape your returns far more than any single company you buy. 

Below: what the evidence says about individual stocks, how to buy shares in Hong Kong and what it costs, how to diversify properly, and why behaviour is the real risk.

What does the evidence say about picking individual stocks?

Bessembinder’s study of every US-listed stock since 1926 found that five companies created a tenth of all net market wealth, the top 4% of firms created the entire net gain above Treasury bills, and 57.4% of stocks returned less than one-month Treasury bills over their lifetimes. Of course, the corollary is - nobody knows which ones they are beforehand. 

The implication is uncomfortable for stock-pickers. If a small handful of companies - and it is hard to predict which ones - drive almost all of the market’s return, a concentrated portfolio is statistically more likely to miss them than to catch them. Diversification may be the mathematically rational response to how skewed stock returns are.

Most professionals, by the way, do not fare much better: per the SPIVA U.S. Scorecard from S&P Dow Jones Indices, 79% of active US large-cap funds trailed the S&P 500 in the year to end-2025. On this evidence, individual stocks may not be suited as a core allocation. (Past performance is not an indicator nor a guarantee of future performance.)

How do you buy shares in Hong Kong, and what does it cost?

You open a securities account with a bank or licensed broker. Unlike Singapore, Hong Kong has no retail depository account, so shares sit in the Central Clearing and Settlement System (CCASS) under the broker’s nominee while you remain the beneficial owner. Trading costs include a negotiable brokerage commission, an HKEX trading fee of 0.00565%, an SFC levy of 0.0027%, an AFRC levy of 0.00015%, and — the largest visible cost — stamp duty of 0.1% on each side of a trade, in place since 17 November 2023. ETFs are exempt from that stamp duty.

The bigger long-run cost is the annual fund fee. Passive unit trusts and ETFs tend to charge attractive fees, while active vehicles are typically more expensive. To illustrate how fees can eat into returns, HK$1,000,000 compounding at a hypothetical 6% a year for 20 years grows to about HK$3.03 million at a 0.30% fee, but only about HK$2.51 million at a 1.30% fee: roughly HK$520,000 lost to costs alone.

Why isn’t one index fund enough diversification?

A single index fund typically concentrates risk in a single geography, or industry. Even a diversified fund that spreads exposure across regions and sectors — a global equity unit trust or ETF (tracking an index such as MSCI World), which holds hundreds of companies in a single trade - does not offer alternative risk-return profiles (for example, fixed income). 

Exchange-traded funds (ETFs) trade on the Hong Kong Stock Exchange like an ordinary share, so a single transaction buys exposure to an entire index. 

Unit trusts, also called mutual funds, pool investors' capital and are authorised for retail sale by the Securities and Futures Commission (SFC). Rather than trading intraday, they are dealt once a day at net asset value (NAV) — the per-unit value of the fund's underlying holdings. Where a unit trust tracks an index passively, its ongoing fees are typically lower than those of an actively managed equivalent.

A monthly investment plan is a way of buying into one of these vehicles. Offered by many banks and brokers from a few hundred Hong Kong dollars a month, it applies dollar-cost averaging automatically: a fixed sum is invested at set intervals into an underlying ETF or fund, so units accumulate across a range of prices rather than at a single entry point.

Why is behaviour the real risk?

Investors are about 50% more likely to sell a rising stock than a falling one, buy attention-grabbing stocks that then underperform, and feel losses about twice as intensely as equivalent gains — which is why many sell at the bottom of a downturn. Concentration worsens it: Enron’s employees held around 62% of their retirement assets in company stock at its collapse. The lesson is not to fear the market but to design around your own psychology: automate contributions, diversify by default, and make selling a deliberate decision rather than an emotional reflex. A diversified, automated, low-cost portfolio is likely to reduce the moments where behavioural biases can push you to take the wrong investment decisions. Before committing capital, it is also worth confirming that any platform you use is properly regulated. 

For impartial guidance, the Investor and Financial Education Council (IFEC), through its 'The Chin Family' platform, offers free resources. Hong Kong also operates an Investor Compensation Fund, which may compensate eligible investors up to HK$500,000 per default — but note its limits. It covers products traded on HKEX and Northbound Stock Connect A-shares, so it does not extend to unit trusts bought off-exchange. And it compensates for an intermediary's default, not for any fall in the value of your investments.

Investment implications

Investors in Hong Kong should aim to get a diversified exposure to a potentially cost-attractive core, funded through regular, automated contributions, while reserving individual stocks for a small satellite sleeve once you understand the risks.

In our view, the hardest part of investing is not building the portfolio but refraining from repeated trading triggered by behavioral biases, which typically leads to higher cost. That, in turn, increases the odds of underperformance. A simple, automated, diversified plan is far easier to hold through a downturn than a collection of individual convictions that each demand a decision.

On one hand, individual stock-picking offers control, engagement, and the possibility of outsized gains, and a minority of investors will do well at it. On the other hand, the weight of evidence — from Bessembinder’s skew, to SPIVA’s scorecards — is that most beginners achieve better long-run outcomes by starting broad, cheap, and with an automated periodic allocation, then potentially adding complexity only as their knowledge grows, and as satellite allocations. 

A fee-only platform such as Endowus — which charges a transparent advisory fee and rebates the trailer commissions it receives from funds — is one way to keep those costs visible while accessing diversified opportunities. 

Frequently asked questions

How much do I need to start investing in stocks in Hong Kong?

Many banks offer monthly stock or fund investment plans that let you invest a fixed sum — often from a few hundred Hong Kong dollars a month — spreading your entry over time. Some brokers also allow small trade sizes.

Do I pay stamp duty when I buy shares in Hong Kong?

Yes. Hong Kong charges stamp duty of 0.1% on each side of a share transaction — both when you buy and when you sell — as at 2026. ETFs are exempt.

Should a beginner buy individual stocks or funds?

The evidence favours diversified, low-cost funds. Individual stocks concentrate risk, and most have historically underperformed a broad index. A small allocation to single stocks can be added once a core portfolio is in place. All investments carry risk, and past performance is not an indicator nor a guarantee of future performance.

How are my shares held in Hong Kong?

When you buy HKEX-listed shares, they are held in the CCASS clearing system, usually through your broker’s nominee, while you remain the beneficial owner. There is no separate retail depository account as in some other markets.

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