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Liquidity Risk

Liquidity Risk

After completing this reading, you should be in a position to:

  • Explain and calculate liquidity trading risk via the cost of liquidation and liquidity-adjusted VaR (LVaR).
  • Identify liquidity funding risk, funding sources, and lessons learned from real cases: Northern Rock, Ashanti Gold-fields, and Metallgesellschaft.
  • Evaluate Basel III liquidity risk ratios and BIS principles for sound liquidity risk management.
  • Explain liquidity black holes and identify the causes of positive feedback trading.

Liquidity refers to a company’s ability to make cash payments as they become due. It is different from solvency, which is the aspect of a company having more assets than liabilities such that its equity value is positive.

Liquidity Trading Risk Using the Cost of Liquidation and Liquidity-Adjusted Var (LVaR)

Liquidity Trading Risk

Trading liquidity risk is defined as the risk that an institution fails to sell its assets within an appropriate amount of time at a desirable price. Liquidity is measured depending on how quickly an asset can be disposed of at a reasonable price. For instance, an institution, say a bank holding a vast volume of widely-traded, liquid U.S. Treasury Bills in its investment portfolio, has a minimum liquidity risk compared to a bank holding a large volume of thinly-traded, illiquid Non-Agency Mortgage-backed Securities in their investment portfolio.

For a bank to sell an illiquid asset quickly, it should expect taking a loss on the sale due to bigger bid-offer spreads, just like in a fire sale. Some of the factors facilitating liquidity trading risk are predator trading, where markets compete in doing similar trades with each competitor craving for massive profits.

Four factors influence the price at which an asset can be sold. These are:

  1. The amount of the asset is to be sold;
  2. The mid-market price of the security (asset), or an estimate of its value;
  3. The urgency with which it is sold; and
  4. The prevailing economic environment.

For a financial instrument where there is no market maker, the implicit bid-offer spread comes in. The bid price decreases while the offer price tends to increase with the size of a trade. For an instrument where there is a market maker, the bids and offers are the same up to the market maker’s size limit and then start to diverge. The following figure illustrates the above:

Bid and Offer Prices as a Function of Quantity TransactedMeasuring Market Liquidity

The Bid-Offer Spread Measure

The bid-offer spread measure is one of the ways of measuring market liquidity. It can be measured as a dollar amount or a proportion of the asset price. The dollar bid-offer spread is calculated as follows;

$$ \text{p} = \text{Offer price} – \text{Bid price} $$

On the other hand, the proportional bid-Offer spread for an asset is equivalent to

$$ \text{s}=\cfrac {\text{Offer price}-\text{Bid price}}{\text{Mid-market price}} $$

The mid-market price is halfway between the offer price and the bid price commonly regarded as the fair price. A bank experiences a cost equal to \(\frac {\text{s} \alpha}{2}\), whenever it liquidates an asset position, where α is the dollar (mid-market) value of the position. This fact implies that trades are not done at the mid-market price. Therefore, a buy trade is made at the offer price while a sell trade is made at the bid price.

One way of measuring the liquidity of a book is finding how much it would cost to liquidate the book in normal market conditions within a stipulated time. Supposing that \(\text s_{\text j}\) is an estimate of the proportional bid-offer spread in normal market conditions for the \(\text j_{\text{th}}\) financial security held by a financial institution, and \(\alpha_{\text j}\) is the dollar value of the security’s position, then:

$$ \text{Cost of liquidation (normal market)} =\sum_{\text j=1}^{\text n} \cfrac {{\text S}_{\text j} \alpha_{\text j}}{2} $$

Where n represents the number of positions. It is worth noting that diversification does not necessarily reduce liquidity trading risk. However, \(\text S_{\text j}\) increases with the size of position j. This implies that holding small positions instead of a few large ones entails less liquidity risk. Setting limits to the size of any position can thus, be one way of reducing liquidity trading risk.

Example: Cost of Liquidation (Normal Market)

Suppose that HBC bank has bought 15 million shares of one company and 45 million ounces of a commodity. Assume that the shares are bid $90.4, offer $91.6. The commodity is bid $20, offer $ 20.2.

The mid-market value of the position of the shares is equivalent to:

$$ 15×91=$1,365 \text{ million} $$

Note that the mid-market price is halfway between the offer price and the bid price.

The mid-market of the position in the commodity is:

$$ 45×20.1=$904.5 \text{ million} $$

The proportional bid-offer spread for the position of the shares is equivalent to:

$$ \begin{align*} \text{s} & =\cfrac {\text{Offer price}-\text{Bid price}}{\text{Mid-market price}} \\ \text s & =\cfrac {(91.6-90.4)}{91}=0.01318 \\ \end{align*} $$

Similarly, the proportional bid-offer for the position in the commodity is:

$$ \cfrac {(20.2-20)}{20.1}=0.00995 $$

And hence the cost of liquidation in a normal market is:

$$ 1,365×0.01318×0.5+904.5× 0.00995×0.5=$13.495 \text { million} $$

Cost of Liquidation (Stressed Market)

The cost of liquidation in a stressed market within a specified period is another liquidity cost measure.

$$ \text{Cost of liquidation (stressed market)} = \sum_{\text j=1}^{\text n} \cfrac {(\mu_j+\lambda \sigma_{\text j}) \alpha_{\text j}}{2} $$


\(\mu_{\text j}\) is the mean, while \(\sigma_{\text j}\) is the standard deviation of the proportional bid-offer spread for the \({\text j}_{\text {th}}\) instrument held.

\(\lambda\) is the parameter that gives the required confidence level for the spread. Suppose that we are considering the “worst-case” spreads that are exceeded only 1% of the time, if the spreads are assumed to be normally distributed, then \(\lambda= 2.326\).

Example: Cost of Liquidation (Stressed Market)

Suppose that HBC bank has bought 15 million shares of one company and 45 million ounces of a commodity. Assume that the shares are bid $90.4, offer $91.6. The commodity is bid $20, offer $20.2. The bid-offer spread for the shares has a mean and standard deviation of $1.5 and $1.8, respectively. Further, the mean and standard deviation for the bid-offer spread for the commodity are both $0.14.

The proportional bid-offer spread for the position of shares has a mean of 0.01158 and a standard deviation of 0.02678. On the other hand, the proportional bid-offer spread for the position of the commodity has a mean of 0.004898 and the same standard deviation of 0.004898.

Assuming the spreads follow a normal distribution, calculate the cost of liquidation at the 99% confidence limit.

$$ \begin{align*} & 0.5×1,365×(0.01158+2.326×0.02678) \\ & +0.5×904.5×(0.004898+2.326×0.004898)=57.79 \\ \end{align*} $$

This is more than five times the cost of liquidation in normal market conditions.

Liquidity-Adjusted VaR

The liquidity-adjusted VaR is the regular VaR plus the cost of unwinding positions in a normal market, which is equivalent to:

$$ \text{Liquidity-Adjusted VaR} =\text{VaR}+\sum_{\text j=1}^{\text k} \cfrac {{\text S}_{\text j} \alpha_{\text j}}{2} $$

Alternatively, liquidity-adjusted VaR can also be defined as regular VaR plus the cost of unwinding positions in a stressed market. This is equivalent to:

$$ \text{Liquidity-Adjusted VaR} =\text{VaR}+\sum_{\text j=1}^{\text k} \cfrac {(\mu_j+\lambda \sigma_{\text j}) \alpha_{\text j}}{2} $$

Unwinding a Position Optimally

To unwind a strong financial position in a financial instrument, a trader must decide on the best trading strategy to employ. The trader faces a large bid-offer when the position is unwound quickly, but the possible loss from the mid-market price changing against the trader is small. If the trader hesitates from unwinding the position, low bid-offer accrues with substantial potential loss from the mid-market.

According to Almgren and Chriss, suppose that the size of a position is L units, and a trader gets to decide how to liquidate it over a k-day period. It is convenient to define the bid-offer spread in dollars rather than as a proportion for this case.

Define the dollar bid-offer spread when the trader trades q units in one day as p(q) dollars. Define \(\text q_{\text j}\) as the units traded on day j and \(\text X_{\text j}\) as the size of the trader’s position at the end of day j where \(1 \le j \le k\).

It follows that \(\text x_{\text j}={\text x}_{{\text j}-1}-{\text q_{\text j}}\) for \(1 \le j \le k\) where \(\text x_0\) is defined as the initial position size, L.

Each trade costs half the bid-offer spread, and the total of the costs related to the bid-offer spread is therefore given by:

$$ \sum_{\text j=1}^{\text k} {\text q}_{\text j} \cfrac {{\text p}(\text q_{\text j})}{2} $$

Assume that trading takes place at the start of a day, and the mid-market price movements follow a normal distribution with a daily standard deviation of \(\sigma\). The variance of the change in the value of the traders’ position on day j is \(\sigma^2 {\text x}_{\text j}^2\). If price changes on successive days are independent, the variance of the change in the value of the position applicable to the unwind is:

$$ \sum_{\text j=1}^{\text k} \sigma^2 {\text x}_{\text j}^2 $$

If a trader wishes to minimize VaR, his/her objective should be to choose \(\text q_{\text j}\) such that

$$ \lambda \sqrt{\sum_{\text j=1}^{\text k} \sigma^2 {\text x}_{\text j}^2}+ \sum_{\text j=1}^{\text k} {\text q}_{\text j} \cfrac {{\text p}(\text q_{\text j})}{2} $$

is minimized to

$$ \sum_{\text j=1}^{\text k} {\text q}_{\text i}=\text L $$

When a position is to be closed out over k days, more than 1/k of the position should be traded on the first day as the longer any part of the position is held, the higher the risk of adverse market moves.

Liquidity Funding Risk

Liquidity funding risk is the ability of a financial institution to finance its financial needs when due. Liquidity is different from solvency; a financial institution with a high level of solvency may fall due to lack of liquidity. Factors that may cause liquidity problems in a financial institution include;

  • Liquidity stresses in the economy: In this case, investors are unwilling to provide funding in situations where there is any credit risk at all. An example is a flight to quality, such as that seen during the 2007 to 2009 crisis.
  • A poor financial performance: This leads to a lack of confidence that can result in a loss of deposits and difficulties in rolling over funding.
  • Excessively aggressive funding decisions: This is when all financial institutions tend to use short-term instruments to fund long-term needs, hence creating a liquidity mismatch.

It is essential to predict cash needs and ensure that they are realizable in adverse situations to managing liquidity risk.

Sources of Liquidity

The core sources of liquidity for a financial institution include:

The capability to liquidate trading book positions

This source of liquidity is related to liquidity trading risk since a financial institution can meet its funding requirements by liquidating part of its trading book. Therefore, it is significant for a financial institution to quantify the liquidity of its trading book to establish how easy it would be to use the book to raise cash.

Holdings of cash and treasury securities

Cash is always an available source of liquidity, while treasury securities are issued by countries such as the US and the UK and are quickly convertible into cash within short notice. Although cash and Treasury securities are excellent sources of liquidity, they are expensive as there is a limit to the cash and treasury securities that can reasonably be held by an institution.

Borrowings from the central bank

Central banks such as the Federal Reserve Board in the United States, the Bank of England in the UK, or the European Central Bank are often referred to as “lenders of last resort.” When banks are experiencing financial challenges, they usually borrow from the central bank.

The capacity to securitize assets such as loans at short notice

The capacity to securitize assets is another source of liquidity that has got its challenges. In August 2007, securitization led to liquidity problems whereby banks had entered liquidity backstop arrangements on the asset-backed commercial paper (ABCP) that was used to fund debt instruments, such as mortgages, before their securitization. Failure to find buyers, selling institutions had to buy the instruments themselves, and in some cases, they had to provide financial support to conduits and other off-balance-sheet vehicles that were involved in the securitization, even though they were not legally required to do so.

The ability to offer sound terms to attract retail and wholesale deposits at short notice

In stressed market conditions, wholesale deposits can quickly disappear as they are volatile. Similarly, retail deposits are not reliable sources of liquidity. The issue of liquidity funding is hard to achieve as when one financial institution wants to improve its retail or wholesale deposit base for liquidity purposes by offering more attractive rates of interest, others usually want to do the same thing, and hence increased funding becomes hard to realize.

The ability to borrow money at prompt notice

A creditworthy bank usually has no problem in borrowing money, but in stressed market conditions, there is a sensitive aversion to risk leading to higher interest rates, shorter maturities for loans, and in some cases, a complete refusal to provide funds. Financial institutions should monitor the assets that can be pledged as collateral for loans at short notice and invest in such.

Lessons Learned from Real Cases: Northern Rock, Ashanti Gold-Fields, and Metallgesellschaft

As we had highlighted earlier, solvency is very different from liquidity. Solvency reflects the equity status of a financial institution, while liquidity is more critical as it determines a financial institution’s ability to fund its future financial needs when they are due. This is evident through three real cases, as discussed below:

The Northern Rock Bank

Northern Rock Bank was one of the top five mortgage lenders in the United Kingdom in 2007. It offered deposit accounts, savings account loans, and house/content insurance. The bank was growing rapidly, but at some point, its liquidity position worsened due to its poor sources of liquidity. The bank depended on selling short-term debt instruments for much of its funding, which was not enough to offer stable liquidity.

Consequently, the bank opted for borrowing. It experienced difficulties due to the economic crisis, which were prevailing in 2007. Lenders were not willing to lend because they were very nervous about lending to banks that were heavily involved in the mortgage business.

Though the bank’s assets were enough to cover its liabilities, so it was not insolvent, the inability to fund itself was a severe problem, and it opted to borrow from the Bank of England. However, the fall of the Northern Bank precipitated by the excessive withdrawals from its clients, which crippled its liquidity status, leading to an increase in emergency borrowing requirements. Finally, the bank could not fund its financial needs, and as a result, it was nationalized, and its management was changed.

The above scenario illustrates how quickly liquidity problems can lead to a bank spiraling downward. If the bank had been managed a little more conservatively and had paid more attention to ensuring that it had access to funding, it might have survived.

Ashanti Goldfields

Similarly, Ashanti Goldfields of West Africa experienced problems resulting from its hedging program. Following the stressed gold market, the European central banks surprised the market with a declaration that they would limit their gold sales over the subsequent five years.

The price of gold shot up by over 25% and Ashanti was unable to meet margin calls. The company restructured by selling a mine. This led to a dilution of the interest of its shareholders. Additionally, it restructured its hedge positions. In a nutshell, the Ashanti Goldfield closure was due to insufficient liquidity sources.


Metallgesellschaft company is another example of how poor liquidity management can lead to institutions closure. Initially, the company was making substantial sales. The company was using long positions in short-dated futures contracts that were rolled forward to hedge against exposure. However, the price of oil dipped, and there were margin calls on the futures positions. MG’s trading became complicated by the fact that its trades were substantial and were anticipated by others. The closure of the institution was due to short-term cash flow pressures, as its liquidity was crippled.

Basel III Liquidity Risk Ratios

The Basel III introduced two liquidity risk requirements, namely; the liquidity coverage ratio (LCR) and the net stable funding ratio (NSFR).

The Liquidity Coverage Ratio (LCR)

The LCR requirement is expressed as follows:

$$ \cfrac {\text{High-quality liquid assets}}{\text{Net cash outflows in a 30-day period}} \ge 100\% $$

In the calculation of LCR we consider a 30-day period which is one of acute stress involving a downgrade of the following three notches (e.g., from AA+ to A+);

  • Partial loss of deposits
  • Complete loss of wholesale funding
  • Increased haircuts on secured funding and drawdowns on lines of credit.

The required LCR was 100% in 2019.

Example: Liquidity Coverage Ratio

Suppose that ABC bank has high-quality liquid assets that are valued at $50 Million. Additionally, the bank has $30 million in expected net cash flows over a 30-day stress period. The LCR for ABC bank is equivalent to:

$$ \begin{align*} \text{LCR} & =\cfrac {\text{High-quality liquid assets}}{\text{Net cash outflows in a 30-day period}} \\ & =\cfrac {$50}{$30}=167\% \\ \end{align*} $$

Therefore, ABC Bank meets the requirement under Basel III. On the other hand, the NSFR requirement is calculated as follows;

$$ \cfrac {\text{Amount of stable funding}}{\text{Required amount of stable funding}} \ge 100\% $$

The numerator is determined by multiplying each category of funding, such as capital, wholesale deposits, and retail deposits by available stable funding (ASF) factor, reflecting their stability. On the other hand, the denominator is calculated from the assets and the funded off-balance-sheet items. Note that the above categories are multiplied by a required stable funding (RSF) factor to reflect the permanence of the funding.

The Net Stable Funding Ratio (NSFR)

The net stable coverage ratio is designed to encourage and incentivize banks to use stable sources to fund activities and reduce dependency on short-term wholesale funding. It aims at mitigating funding risk by reducing maturity mismatches between assets and liabilities on the balance sheet. The ratio has a time horizon of one year and can be calculated as follow:

$$ NSFR = \cfrac {\text{Amount of stable funding}}{\text{Required amount of stable funding}} \ge 100\% $$

Example: Net Stable Funding Ratio (NSFR)

The following is a balance sheet for XYZ Bank that separates short term and long term assets according to Basel III guidelines. In this case, the short term indicates less than or equal to 30 days, while the long term indicates more than one year. Note that we do not consider durations between these two for simplicity. Additionally, Basel III weighting factors are also included. The Basel III NSFR is calculated using these weighting factors.

Use the balance sheet to evaluate whether the bank meets the Basel III requirements using the NSFR ratio.

$$ \textbf{Balance Sheet for XYZ Bank as at 31 December 2019} $$

$$ \begin{array}{l|c|c|c|c|c} \textbf{Assets} & \textbf{Amount} & \textbf{NSFR} & \textbf{Liabilities} & \textbf{Amount} & \textbf{NSFR} \\ \hline \textbf{Short-Term} & {} & {} & \text{Short-Term} & {} & {} \\ \hline \textbf{Cash} & {0} & {0\%} & \text{Deposits} & {3000} & {80\%} \\ \hline \textbf{T-notes} & {400} & {0\%} & {\text{Deposits Fin} \\ \text{Institutions}} & {1000} & {} \\ \hline \textbf{Loan corporates} & {200} & {85\%} & \textbf{Long-Term} & {} & {} \\ \hline \textbf{Mortgages} & {250} & {65\%} & \text{Owner’s equity} & {1200} & {100\%} \\ \hline \textbf{Corporates} & {100} & {50\%} & \text{Deposits} & {2000} & {100\%} \\ \hline \bf{\text{Loans Fin} \\ \text{Institutions}} & {500} & {0\%} & \text{Unsecured debt} & {3000} & {100\%} \\ \hline \textbf{Long-Term} & {} & {} & {\text{Deposits Fin} \\ \text{Institutions}} & {1200} & {100\%} \\ \hline \textbf{Cash} & {100} & {0\%} & \text{} & {} & {} \\ \hline \textbf{T-notes} & {0} & {0\%} & \text{} & {} & {} \\ \hline \textbf{Loan corporates} & {2500} & {100\%} & \text{} & {} & {} \\ \hline \textbf{Mortgages} & {3500} & {65\%} & \text{} & {} & {} \\ \hline \textbf{Corporates} & {2200} & {100\%} & \text{} & {} & {} \\ \hline \bf{\text{Loans Fin} \\ \text{Institutions}} & {0} & {100\%} & \text{} & {} & {} \\ \end{array} $$

Recall that the NSFR requirement is such that:

$$ \cfrac {\text{Amount of stable funding}}{\text{Required amount of stable funding}} \ge 100\% $$

$$ \begin{align*} & \text{Amount of stable funding is equivalent to:} \\ & =(1200×100\%)+(3000×80\%)+((2000+3000+1200)×100\%) \\ & =9,800 \end{align*} $$

$$ \begin{align*} & \text{The required amount of stable funding is equivalent to:} \\ & (200×85\%)+((250+3500)×65\%)+(100×50\%)+((2500+2200)×100\%)) \\ & =$7,357.5 \end{align*} $$


$$ \text{NSFR} = \cfrac {$9800}{$7,357.5}=133\% $$

NSFR is greater than the required ratio of 100%. Therefore XYZ bank meets Basel III net stable funding requirement.

BIS Principles for Sound Liquidity Risk Management

Bank regulators issued revised principles on how banks should manage liquidity following the 2007 subprime crisis. These are as follows:

  1. A bank takes the responsibility of sound management of liquidity risk in that it should establish a robust liquidity management framework for enough liquidity.
  2. A bank should explicitly articulate a liquidity risk tolerance that is convenient for its business strategy as well as its role in the financial system.
  3. Senior management should develop strategies, policies, and practices to manage liquidity risk in line with the risk tolerance and to certify that the bank maintains sufficient liquidity.
  4. A bank should consider liquidity costs, risks in the internal pricing, benefits, performance measurement, and new product approval process for all substantial business activities. This aids the bank in aligning the risk-taking interests of individual businesses with the potential liquidity risks their activities generate for the bank as a whole.
  5. A bank should employ an effective procedure for identifying, measuring, tracking, and controlling liquidity risk. The procedure should encompass a robust framework for a large projection of cash flows arising from assets, liabilities, and off-balance-sheet items over a suitable time frame.
  6. A bank should manage the intraday liquidity positions and risks to cover payment and settlement liabilities under both normal and stressed market conditions promptly. This creates a smooth functioning of payment and settlement systems.
  7. A bank should manage its collateral positions, establishing a difference between encumbered and unencumbered assets.
  8. A bank should create a funding strategy that offers adequate diversification in the sources and tenor of funding. It should further monitor the legal entity and the place where the collateral is held and how to mobilize it on time.
  9. A bank must have a strict contingency funding plan (CFP) that sets out the strategies for addressing liquidity shortfalls in emergencies.
  10. A bank should track and control liquidity risk exposures and funding needs within and across legal entities, business lines, and currencies, considering the legal, regulatory, and operational limitations to the transferability of liquidity.
  11. A bank should regularly reveal public information that helps market participants to make an informed decision about the effectiveness of its liquidity risk management framework and liquidity position.
  12. A bank should keep a cushion of unencumbered, high-quality liquid assets to be held as insurance for a range of liquidity stress scenarios, including those that involve the loss or impairment of unsecured and typically available secured funding sources
  13. A bank should employ stress tests regularly for a diversity of short-term and protracted institution-specific and market-wide stress scenarios to establish the sources of potential liquidity strain and to ensure that current exposures remain following a bank’s established liquidity risk tolerance.
  14. Supervisors should frequently perform a comprehensive assessment of a bank’s overall liquidity risk management framework and liquidity position to establish whether they deliver an adequate level of resilience to liquidity stress given the bank’s role in the financial system.
  15. Supervisors should communicate among themselves and between public authorities, such as central banks, both within and across national borders, to facilitate practical cooperation regarding the supervision and oversight of liquidity risk management.
  16. Supervisors should intervene to require useful and timely corrective action by a bank in addressing deficiencies in its liquidity risk management or liquidity position.
  17. Supervisors should supplement their standard assessments of a bank’s liquidity risk management framework and liquidity position by monitoring a mix of internal reports, prudential reports, and market information.

Liquidity Black Holes and the Causes of Positive Feedback Trading

Liquidity Black Holes

A liquidity black hole refers to a situation whereby liquidity has dried up in a market as every participant wants to sell, and no one wants to buy and vice versa. This situation is also known as a crowded exit. A liquidity black hole is generated when a price decline makes more market participants want to sell, forcing prices well below where they eventually settle. During the sell-off, liquidity dries up, and the asset can be sold only at a fire-sale price.

The Causes of Positive Feedback Trading

There exist negative feedback traders and positive feedback traders in a market. The behavior of these traders drives the changes in the liquidity of financial markets. Negative feedback traders usually buy when prices fall and sell when prices rise. On the other hand, positive feedback traders sell when prices fall and buy when prices rise.

Negative feedback traders dominate the trading in liquid markets as these traders buy when the price of an asset gets reasonably low, creating demand for the asset, which restores the price to a reasonable level. The converse is also true. In contrast, positive feedback traders dominate illiquid markets. This is because a fall in the price of an asset causes traders to sell., resulting in a further price fall and more selling. An increase in the asset price causes traders to buy. This causes the price of the assets to increase further and, thus, more buying.

The reasons why positive feedback trading exists include:

  • Trend trading: These traders identify trends in an asset price and buy when the asset price appears to increase and sell when it appears to decrease. A related strategy is the breakout trading whereby trading occurs when an asset’s price moves outside a stipulated range.
  • Stop-loss rules: These are rules which limit traders from losses. As a result, when the price of an asset that is owned falls below a given level, they sell to limit their losses.
  • Dynamic hedging: Hedging a short option position, either a call or put, involves buying after a price rise and selling after a price fall. Dynamic hedging is a positive feedback trading that can reduce liquidity.
  • Creating options synthetically: Hedging a short position in an option makes a financial institution to create a long option position synthetically by doing the same sort of trading as it would do if it were hedging a short option position, hence leads to positive feedback.
  • Margins: Margin calls are caused by significant movement in market variables, specifically for highly leveraged traders. Eventually, the traders are forced to close out their positions, which reinforces the underlying move in the market variables.
  • Predatory trading. Predatory trading reinforces price decline and results in the price falling even further than it would otherwise do.
  • Long Term Capital Management: The failure of the hedge fund Long-Term Capital Management (LTCM) is an example of positive feedback trading. An example of this trade is the “relative value fixed income.”

Practice Question

The liquidity manager for HBC bank learns that the bank is facing a liquidity crisis. The manager opts to sell some liquid assets owned by the bank to increase its liquidity. The following factors affect the price at which the asset will be sold. Which one is inaccurate?

A. The mid-market price of the instrument, or an estimate of its value

B. The prevailing economic environment

C. The urgency with which the asset can be sold

D. The price at which the asset was bought

The correct answer is: D).

The correct answer is D: The price at which an asset was bought does not affect the selling price of the asset in this case. 

A is incorrect: The mid-market price of an asset or an estimate of its value affects the price at which the asset will be sold.

B is incorrect: The prevailing economic environment usually affects the price at which an asset is sold.

C is incorrect: How vital an asset is to be sold usually affects the prices it fetches.


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