Liquidity risk is the risk that you cannot sell an investment quickly when you need cash, or can only sell it at a much lower price than it is worth. It is low for large-company stocks and money market funds and high for private placements, real estate and thinly traded securities, where exits can take months or years.
You might be weighing an investment that pays more than a bond fund but locks your money up for two or three years. Or you own a small stock that looked cheap until you tried to sell and the price slid with each order. Both are liquidity risk. The question is not whether to avoid it entirely, but whether you can live without that money for as long as the investment may need.
What does liquidity risk mean?
It means the gap between needing your money and being able to get it at a fair price. According to Investor.gov's glossary, liquidity risk is "the risk that investors won't find a market for their securities," which may prevent them from buying or selling when they want.
Liquidity has two parts:
Speed
How long it takes to turn the investment into cash: seconds for a large stock, days for some funds, years for a private fund with a lockup.
Price impact
How much you lose by selling quickly. Investor.gov notes that stocks with low liquidity "may cause you to take a bigger loss if you cannot sell the shares when you want to."
Where does liquidity risk show up?
It shows up almost everywhere, in different strengths. The table gives a rough guide.
| Investment | Typical time to cash | Main liquidity issue |
|---|---|---|
| Large-company stocks and major ETFs | Same day, settles in one business day | Usually small, can widen in a panic |
| Open-end mutual funds | Daily redemption | Fund may need to sell holdings at poor prices |
| Certificates of deposit | At maturity | Early withdrawal penalty |
| Small or thinly traded stocks | Days or longer | Wide bid-ask spreads, price drops as you sell |
| Corporate and municipal bonds | Days | Few dealers for some issues |
| Real estate held directly | Months | Selling costs and time on market |
| Private placements and private funds | Often years | Resale restrictions, lockups, limited redemptions |
Private investments sit at the far end. Securities sold in a private placement are usually restricted, so there is no public market and transfers may need the issuer's approval.
How do regulators limit liquidity risk in mutual funds?
The SEC requires open-end funds, including mutual funds and most ETFs, to manage it actively. Under Rule 22e-4, adopted in October 2016 and described in the SEC's press release on fund liquidity rules, funds must:
- Classify each holding into one of four buckets: highly liquid, moderately liquid, less liquid or illiquid.
- Set a highly liquid investment minimum, meaning a share of assets convertible to cash within three business days without significantly changing its value.
- Stay under a 15% cap on illiquid investments. A fund cannot buy more illiquid assets once they exceed 15% of net assets. "Illiquid" here means the fund expects it cannot sell within seven calendar days without significantly changing the price.
- Have board oversight, including an annual written review of the program.
Private funds offered under Regulation D are not open-end funds and are not subject to these limits. Their liquidity terms are whatever the offering documents say, which is why reading them matters.
Why do illiquid investments often pay more?
Investors usually expect extra return for giving up access to their money, often called an illiquidity premium. That expected premium is not guaranteed. An illiquid investment can pay less than a liquid one, and when it goes wrong you may be unable to exit while the problem unfolds.
Higher yields on private credit, real estate or merchant cash advance funds reflect several risks at once: default, concentration and liquidity among them. Do not credit the whole difference to illiquidity alone.
How do you manage liquidity risk in your own portfolio?
Match each investment to when you might need the money. A practical checklist:
- Keep an emergency reserve in liquid, stable assets before committing to anything with a lockup.
- List known cash needs by year, such as tuition, a home purchase or retirement withdrawals, and keep those amounts out of illiquid holdings.
- Cap illiquid holdings at a share of your portfolio you could leave untouched through a bad stretch.
- Stagger maturities in CDs, bonds or term-based private investments so something comes due regularly.
- Read redemption terms line by line: lockup length, notice periods, redemption fees, gates that let the manager limit withdrawals, and whether the manager can suspend redemptions.
- Ask what happens in a forced exit. If you die, divorce or need cash, can the interest be transferred, and at what price?
What questions should you ask before buying an illiquid investment?
Ask these before you commit, and get the answers in writing:
- How long is the minimum holding period, and is it a lockup or just a penalty?
- What is the redemption process, and how much notice is needed?
- Can the manager delay or limit redemptions, and has that ever happened?
- Is there any secondary market for the interest?
- How are the holdings valued while you cannot sell?
If the answers are vague, treat that as information. Our guide to spotting investment fraud covers further warning signs.
Frequently asked questions
Is liquidity risk the same as market risk?
No. Market risk is the chance that prices fall. Liquidity risk is the chance you cannot sell at a fair price when you want to. They often appear together in a crisis, when prices drop and buyers disappear at the same time.
Are CDs subject to liquidity risk?
Yes, to a degree. Investor.gov lists products that charge a penalty for early withdrawal, such as CDs, as an example of liquidity risk, because getting your money out early costs you.
Can a mutual fund stop me from redeeming?
Open-end mutual funds generally must pay redemption proceeds within seven days and can suspend redemptions only in limited circumstances. They manage this risk under the SEC's liquidity rule, which caps illiquid holdings at 15% of net assets.
How much of my portfolio should be illiquid?
There is no universal figure. It depends on your income, your emergency savings, your upcoming cash needs and how long you can leave money untouched, which is a good question to work through with a fiduciary adviser.
Related: What is a private placement? · What is a merchant cash advance? · What does a fiduciary financial advisor mean?