Liquidity risk
Also written Illiquidity risk
The risk of being unable to get out of a position at or near the quoted price — because the contract is bilateral, because the order book is thin, or because volumes dry up near expiry.
In plain language
Every profit and loss you see on a screen is notional until you can actually close the position. Liquidity risk is the gap between the two.
It shows up in two quite different places in this paper, and they are examined separately.
In the forward market it is structural. A forward is written to one pair of parties' exact requirements and is not listed anywhere, so no third party wants it or can find it. There is no exit before maturity except by agreement with the original counterparty.
In the exchange-traded derivatives market it is a matter of depth. The contract is standardised and anyone can trade it — but only if somebody is on the other side right now, at a sensible price, in the quantity you need. When they are not, you are holding a loss you cannot stop.
How it works
The workbook is specific about when the exchange-traded version bites: trading volumes in stock futures and options typically fall as the contracts near their expiry date, and clients holding positions in such contracts may find it difficult to close them. The far-month contract and the deep out-of-the-money strike are thinly traded all the time.
The damage arrives through two channels at once. First, the bid-ask spread widens, so the round trip costs more. Second, impact cost rises, because the size you need to shift is large relative to the quantity resting at the best quote. Both are the price of demanding immediacy from a market that has stopped offering it.
The workbook is equally specific that counterparty risk is generally not applicable to a client trading exchange-traded equity derivatives, because settlement is guaranteed by the exchange and the clearing corporation. Liquidity risk is not removed by that guarantee. The clearing corporation promises that the trade you did will settle. It does not promise that somebody will be there to take the other side of the trade you now want to do.
A worked example
A trader is long 3 lots of a mid-cap stock future, lot size 1,100, entered at Rs 640.
Contract value = 3 × 1,100 × 640 = Rs 21,12,000
Two days before expiry the contract is quoted at Rs 612. On screen the loss looks like:
(612 − 640) × 3,300 = −Rs 92,400
Now he tries to square off 3,300 shares. The order book has thinned as expiry approaches:
| Buy qty | Bid (Rs) |
|---|---|
| 400 | 610.20 |
| 900 | 607.50 |
| 2,000 | 604.80 |
His sell order walks all three levels:
Actual price = (400 × 610.20 + 900 × 607.50 + 2,000 × 604.80) ÷ 3,300
= (2,44,080 + 5,46,750 + 12,09,600) ÷ 3,300 = Rs 606.19
Realised loss = (606.19 − 640) × 3,300 = −Rs 1,11,573
Rs 19,173 worse than the screen said, and the best bid was already Rs 1.80 below the last traded price before he started. Nothing went wrong with his view on the stock. The extra loss is the cost of needing to leave a market that had already emptied out.
In the same expiry week the near-month contract on an index would have absorbed the whole order inside the spread. Same trader, same conviction, different contract, Rs 19,173.
Why NISM asks about it
Liquidity risk appears twice. Chapter 3, section 3.1, lists it as the first limitation of forwards — tailor-made contracts are not accessible to other participants, so exiting before maturity is very difficult. Chapter 10, section 10.1, lists it as one of the three risks of trading equity derivatives, alongside market risk and counterparty risk, with the expiry-week volume point attached. Questions typically ask you to attribute a described situation to the right risk, so keep the three apart: market risk is the price moving against you, liquidity risk is not being able to get out, counterparty risk is the other side not paying.
Common exam traps
- Liquidity risk is not counterparty risk. They are listed as separate limitations of forwards and as separate risks in Chapter 10. A question describing "unable to exit before maturity" is liquidity; "the other party refuses to deliver" is counterparty.
- The clearing corporation guarantee does not cure liquidity risk. It removes counterparty risk for exchange-traded derivatives and nothing else.
- Illiquidity is worst exactly when you need liquidity most — near expiry, in far-month contracts, in deep out-of-the-money strikes, and in a falling market.
- Liquidity risk is measured, in practice, as impact cost. If a question links the two, it is not a trick; they are the same phenomenon seen from two sides.
- A forward's illiquidity comes from customisation plus the absence of a listing, not from the size of the contract.
Where this is taught
- Series XXI-B · Chapter 1: Investment Landscapeintroduced here
- Series XXI-A · Chapter 1: Investmentsintroduced here
- Series XIX-D · Chapter 1: Investments Landscapeintroduced here
- Series X-A · Chapter 16: Portfolio Performance Measurement and Evaluationintroduced here
- Series VIII · Chapter 1: Basics of Derivativesintroduced here
- Series II-A · Chapter 2: Characteristic of Equity Sharesintroduced here
- Series XV · Chapter 12: Fundamentals of Risk and Returnintroduced here
- Series V-D · Chapter 1: Investment Landscapeintroduced here
- Series SEBI-ICE · Chapter 5: Investment in Securities Marketintroduced here
- Series XIX-C · Chapter 1: Investments Landscapeintroduced here
- Series XVII · Chapter 2: Financial Markets & Investment Productsintroduced here
- Series XIX-E · Chapter 1: Investments Landscapeintroduced here
- Series XXI-B · Chapter 17: Risk
- Series V-D · Chapter 13: Basics of Derivatives
- Series VIII · Chapter 10: Sales Practices and Investor Protection Measures
Related terms
- Market riskThe risk of loss from movements in market prices — one named category in a manager's risk framework, alongside credit, liquidity and operational risk, and the one measured with VaR and stress tests.
- Impact costThe percentage by which a market order's actual execution price degrades against the ideal price — the mid-point of the best bid and the best offer — and so the real cost of trading in size.
- Forward contractA bilateral, over-the-counter agreement between two parties to buy or sell an asset on a fixed future date at a price agreed today — customised to suit them, and binding on both.
- LiquidityThe degree of ease with which you can turn an investment back into cash at a fair value — one of the three pillars of investing, alongside safety and return.
- Bid-ask spreadThe gap between the best buy (bid) price and the best sell (ask) price in the order book — the cost a trader bears for buying and immediately selling a small quantity.
- Counterparty riskThe risk of an economic loss because the other party to a contract fails to fulfil its obligation — acute in forwards, and removed for exchange-traded derivatives by the clearing corporation's guarantee.
- Liquidity-adjusted VaRRegular Value at Risk plus the cost of unwinding the positions — because ordinary VaR measures the price move but ignores what it costs to actually get out.
- Private EquityEquity capital raised by companies from external investors without going to the public markets — direct investment in businesses that are not listed on a stock exchange.
- Corporate Debt Market Development FundA close-ended Category I AIF, formed as a trust with a 15-year tenure, that buys investment-grade corporate bonds from debt mutual fund schemes when SEBI declares a market dislocation.
- Graded Surveillance MeasuresAn exchange surveillance framework that flags small companies whose valuation is out of line with their fundamentals and imposes trading restrictions to warn investors off.
- Transactional riskThe risk that the other party in a share trade fails to pay for shares bought or fails to deliver shares sold, mitigated by trading through the exchange's guaranteed settlement system.
- Inflation riskThe risk that the money an investment pays out will be worth less in goods and services than expected, because prices have risen — highest in fixed-return products and most damaging to retirees.
- Pre-redemption liquidity of debt instrumentsThe workbook's observation that exiting a debt instrument in India before its maturity is typically difficult, and where a market does exist, the seller usually has to accept a materially lower price to find a buyer.
- Cash and equivalentsThe asset class investors use to park money they may need at very short notice — near-zero volatility, near-zero risk of loss to principal, and ready availability.
- Money Market InstrumentsDebt instruments with maturity of one year or less. Under the PM Regulations they include commercial paper, trade bills, treasury bills, certificates of deposit and usance bills.
- Real InvestmentsNon-financial investments such as real estate, gold and commodities — physical assets, as opposed to financial investments like equity and bonds, which are claims on future cash flows.
- Risk Disclosure DocumentThe document a broker must give a derivatives client, and have signed, at registration — setting out the risks of trading on exchanges and the rights and obligations of broker and client.
- Emergency fundA pool of money held in liquid assets, sized at six months of household expenses, kept aside so that an interruption in income does not force the sale of long-term investments.