Liquidity: Why Some of Your Wealth Is Harder to Spend Than Others

Last updated: October 2026. Not financial advice. All figures for educational reference only.

Liquidity is how quickly and easily an asset can be converted into cash without a significant loss in value — cash itself is the most liquid asset, while property and private investments sit at the illiquid end, with listed shares and S-REITs typically falling somewhere in between depending on trading volume.

Key Takeaways

• Liquidity measures ease of conversion to cash without meaningful price impact — it is distinct from how much an asset is worth or how good a long-term investment it is.
• Cash and money market funds are the most liquid; property, private equity, and unlisted business stakes are among the least liquid.
• SGX-listed blue chip shares are generally far more liquid than small-cap or thinly traded counters, where even a modest sell order can move the price noticeably.
• Low liquidity is often compensated for with a ‘liquidity premium’ — the expectation of higher long-term returns for tying up your money in a harder-to-sell asset.
• A portfolio built entirely of illiquid assets can leave you unable to raise cash quickly in an emergency, even if your total net worth looks healthy on paper.

What Is Liquidity?

Liquidity is one of the three core dimensions investors weigh alongside return and risk, yet it is often the least discussed of the three — until the moment someone urgently needs cash and discovers their wealth is tied up in assets that cannot be sold quickly or without taking a steep discount.

At one extreme sits cash itself: instantly usable, with zero conversion cost or delay. Slightly less liquid are instruments like Singapore Savings Bonds or T-bills nearing maturity, which can usually be redeemed or sold with modest notice. Further along the spectrum are listed securities — SGX blue chips like the local banks trade in large daily volumes and can typically be sold within seconds at a price very close to the last traded price, while a small-cap counter with thin trading volume might see its price drop meaningfully the moment you try to sell a sizeable position.

At the illiquid end sit assets like private company shares, unlisted REITs, and physical property. A HDB flat or private condo might be genuinely valuable, but converting that value into cash typically takes weeks to months, involves transaction costs (agent fees, stamp duties), and is subject to finding a willing buyer at your asking price — none of which applies when you simply want to withdraw cash from a savings account.

How Does Liquidity Work in Singapore?

In the Singapore context, investors typically encounter a liquidity spectrum running from cash and fixed deposits (highly liquid, near-instant access, though early withdrawal of a fixed deposit may forfeit interest) through T-bills and Singapore Savings Bonds (liquid, with SSBs specifically allowing penalty-free early redemption any month) to SGX-listed shares and S-REITs (liquidity varies significantly by trading volume — a large-cap bank counter is far more liquid than a small, thinly traded REIT) and finally to property and private investments (illiquid, often taking months to convert to cash and subject to significant transaction costs).

Liquidity risk becomes especially relevant during market stress. In a sharp downturn, even normally liquid assets like certain S-REITs or corporate bonds can see trading volumes dry up, meaning you may only be able to sell at a steep discount to the last quoted price if you need cash urgently — this is distinct from the asset’s long-term fundamental value, which may be unaffected.

Because of this, financial planning generally recommends keeping an emergency fund (commonly cited as three to six months of expenses) in genuinely liquid instruments like a savings account or short-tenor fixed deposit, rather than relying on being able to sell investments or property quickly if an unexpected need for cash arises.

Liquidity Example

An investor holds S$100,000 in DBS shares, one of the most heavily traded counters on SGX. If they need S$20,000 in cash urgently, they can sell the relevant number of shares and expect to receive cash (after settlement, typically within a day or two) at very close to the quoted market price, with minimal price impact from their own sale.

Compare this to an investor with S$100,000 of equity in an investment condo they own outright. If they suddenly need S$20,000, they cannot simply sell 20% of the property — they would need to either sell the entire unit (a process that can take months and involves significant transaction costs) or borrow against it via a mortgage or equity loan, which introduces its own costs, approval time, and ongoing interest obligations.

Advantages of Liquidity

• Liquid assets give you flexibility. Holding a reasonable portion of your wealth in liquid form means you can respond to emergencies, opportunities, or changing life circumstances without being forced to sell something at a bad time or price.
• Illiquid assets often pay a liquidity premium. Investors who are willing to tie up capital in less liquid assets — private equity, unlisted property funds, or direct property — are often compensated with the expectation of higher long-term returns precisely because fewer investors are willing to accept that trade-off.
• Liquidity in listed markets is generally transparent. For SGX-listed securities, you can check daily trading volume and bid-ask spreads before investing, giving you a reasonably clear picture of how easily you could exit the position later.
• A liquidity ladder smooths out your access to cash over time. By staggering maturities across fixed deposits, T-bills, and SSBs, investors can ensure that some portion of their portfolio is always becoming liquid soon, without sacrificing all of it to low-yielding cash.

Risks and Limitations

• Illiquid assets can trap you in a bad situation. If you urgently need cash and your wealth is concentrated in property or private investments, you may be forced to accept a steep discount, take on expensive emergency borrowing, or simply be unable to access the funds in time.
• Liquidity can evaporate exactly when you need it most. During market crises, even normally liquid assets can see trading volumes collapse and bid-ask spreads widen dramatically, meaning the liquidity you assumed you had may not be there when markets are under stress.
• Chasing liquidity has an opportunity cost. Keeping too much of your portfolio in cash or near-cash instruments to maximise liquidity means giving up the higher long-term returns typically available from equities, REITs, or property.
• Thinly traded counters carry hidden liquidity risk. A small-cap SGX stock might look attractively priced, but if daily trading volume is low, you may struggle to sell a meaningful position without significantly moving the price against yourself.

Liquidity Across Common Singapore Asset Classes

Source: General market structure observations, SGX and MAS-regulated instruments, 2026.

The Bottom Line

Liquidity is not about which asset is “best” — it is about matching how quickly you might need your money to how quickly that money can actually be accessed without taking a loss.

A well-constructed portfolio for most Singapore investors blends liquid instruments (for emergencies and flexibility) with less liquid, higher-return assets like equities, REITs, or property (for long-term growth) — the mistake to avoid is having all of one and none of the other.

Frequently Asked Questions

Related Terms

• Diversification
• Current Ratio
• Quick Ratio
• Emergency Fund Singapore