Treasury, Liquidity and Asset–Liability Management

Introduction and context

Banking is fundamentally an exercise in transforming maturities, risks and liquidity preferences. Banks accept deposits and other short-term liabilities, extend loans and acquire securities with varied maturities, provide payment services, and participate in foreign-exchange and capital markets. This transformation creates earnings opportunities but also exposes the institution to liquidity, interest-rate, market, foreign-exchange, credit and operational risks.

The treasury function manages the bank’s money-market position, investment portfolio, funding, foreign exchange and financial-market risks. Asset–liability management (ALM) provides the governance and analytical framework for coordinating these decisions. Treasury is therefore not merely a dealing room. It is a risk-management and balance-sheet management function that links strategy, regulation, pricing, liquidity resilience and profitability.

A bank may be solvent but illiquid: its assets may exceed its liabilities in economic value, yet it may be unable to meet withdrawals or settlement obligations when due. Conversely, a bank may have ample cash but suffer losses from interest-rate or market-value changes. Effective ALM integrates both dimensions.

Learning objectives

After studying this chapter, the learner should be able to:

1. Distinguish money-market and capital-market instruments and evaluate their uses.
2. Explain government securities, foreign-exchange transactions and derivatives.
3. Measure liquidity through cash-flow gaps, liquidity ratios and regulatory indicators.
4. Analyse duration, repricing gaps and economic-value sensitivity.
5. Explain funds transfer pricing (FTP) and investment-portfolio decisions.
6. Apply ALM concepts to a practical banking case.
7. Assess governance, regulatory, ethical and technological issues in treasury management.

1. Treasury architecture and responsibilities

Treasury normally performs several related functions:

• Funding and liquidity management: raising funds, maintaining cash and high-quality liquid assets, and managing payment and settlement obligations.
• Market dealing: executing money-market, securities, foreign-exchange and derivative transactions within approved limits.
• Investment management: managing the bank’s securities portfolio for liquidity, income, capital preservation and interest-rate positioning.
• Balance-sheet management: coordinating assets, liabilities, capital and risk appetite.
• Risk control and reporting: measuring exposures independently, monitoring limits, valuing positions and escalating exceptions.

The three-lines model is useful. Front-office treasury originates transactions; an independent risk function measures and challenges exposures; internal audit evaluates the overall control framework. The asset–liability committee (ALCO), chaired by a senior executive, normally approves liquidity, interest-rate, funding and investment strategies. The board approves risk appetite and receives material risk reports.

A sound treasury policy specifies permitted instruments, counterparties, limits, collateral requirements, valuation methods, stress scenarios, escalation procedures, segregation of duties and business-continuity arrangements.

2. Money and capital markets

The money market deals primarily in short-term instruments, commonly with original maturities of one year or less. It supports liquidity adjustment and monetary-policy transmission. The capital market facilitates medium- and long-term financing through bonds, equities and related instruments.

Treasury bills and bonds

A discount instrument is purchased below its redemption value and pays no periodic coupon. For a simple holding-period calculation, the annualised yield based on a 360-day convention may be represented as:

Here, F is face value, P is purchase price, and d is the number of days held or to maturity under the specified convention. The formula assumes a simple, non-compounded yield and must not be confused with a bond-equivalent yield or an effective annual yield.

For a coupon bond, the present value is:

where P is clean or dirty price as specified, C_t is the cash flow at time t, F is principal repayment, y_t is the discount rate applicable to that cash flow, and n is the number of periods. In a flat-yield special case, all y_t equal a common periodic yield y. Actual pricing uses a yield curve, day-count convention, accrued interest and settlement rules.

Repurchase agreements

A repo is economically a collateralised loan. One party sells securities and agrees to repurchase them later at a higher price. The difference reflects financing cost. Repos are important because they convert securities into funding while reducing unsecured credit exposure. Nevertheless, collateral can lose value, settlement can fail, and a counterparty may default before collateral is liquidated. Haircuts protect the lender against market and liquidation risk.

Capital-market instruments

Government bonds provide benchmark yields and are commonly used as liquidity reserves. Corporate bonds offer additional spread but require credit analysis, concentration controls and liquidity assessment. Equities can diversify returns but are generally less suitable than high-quality debt for immediate liquidity needs. Securitised instruments may improve funding efficiency but create prepayment, extension, structural and model risks.

Instrument selection should consider expected return, duration, convexity, liquidity, credit quality, capital treatment, tax, accounting classification and stress performance—not coupon income alone.

3. Liquidity risk management

Liquidity risk is the risk that a bank cannot meet obligations when they fall due without unacceptable losses. It has two related forms:

• Funding liquidity risk: inability to obtain cash or renew funding.
• Market liquidity risk: inability to sell or hedge an asset promptly at a reasonable price.

A bank’s contractual maturity ladder maps expected inflows and outflows by time bucket. The net liquidity gap is:

The cumulative gap through time T is:

A negative gap indicates that additional liquidity, asset sales, collateralised funding or balance-sheet adjustment may be required. The calculation depends on behavioural assumptions. Non-maturity deposits, loan prepayments, undrawn commitments and collateral calls cannot be treated solely according to contractual dates.

Liquidity buffers and stress testing

A liquidity buffer generally contains cash, central-bank balances and high-quality liquid assets that can be monetised rapidly. The buffer should be diversified across instruments, currencies, custodians and settlement systems. It must be usable under stress; assets encumbered, legally restricted or highly correlated with the source of stress may provide less protection than their accounting value suggests.

Stress tests should include institution-specific events, market-wide events and combined scenarios. Examples include a deposit run, wholesale funding closure, rating downgrade, collateral haircut increase, foreign-exchange shock, cyber incident and sovereign-market disruption. Management should identify survival horizons and formulate a contingency funding plan with defined triggers, authorities and communication procedures.

Regulatory liquidity indicators

The liquidity coverage ratio (LCR) is conceptually:

HQLA means high-quality liquid assets meeting the applicable regulatory definition. Net cash outflows reflect stressed outflows less permitted inflows, subject to regulatory caps and assumptions. The ratio is not a complete liquidity-management system; a bank can meet it while facing intraday, currency-specific or longer-term funding stress.

The net stable funding ratio (NSFR) is conceptually:

The precise components and calibration are jurisdiction-specific. LCR focuses on short-term resilience; NSFR addresses structural funding over a longer horizon. Both must be supplemented by internal metrics, concentration limits, early-warning indicators and stress tests.

4. Interest-rate risk in the banking book

Interest-rate risk arises because assets, liabilities and off-balance-sheet items reprice at different times or respond differently to market rates. A bank may suffer lower net interest income (NII) when funding costs rise faster than asset yields, or suffer a decline in economic value when the present value of assets falls more than that of liabilities.

Repricing-gap analysis

For a time bucket, the simple rate-sensitive gap is:

where RSA_t represents rate-sensitive assets repricing in bucket t, and RSL_t represents rate-sensitive liabilities. A positive gap means more assets than liabilities reprice in the bucket. If rates rise immediately and repricing is otherwise equal, NII may increase; if rates fall, NII may decrease. The result depends on the direction, basis and magnitude of repricing and on behavioural assumptions.

An approximate change in annual NII for a small, parallel rate change is:

If gap is measured in currency and ∆r_t is a decimal annual rate change, the result is currency per year. This approximation ignores embedded options, spread changes, non-parallel yield-curve movements, balance growth and management responses.

Duration and economic value

Macaulay duration is the present-value-weighted average time to receive a security’s cash flows:

Here, t is time in years or periods consistently measured, PV(CF_t) is the present value of the cash flow at time t, and P is the instrument’s price. Modified duration for annual compounding is:

where y is the yield per period. For a small parallel change in yield, the price approximation is:

Duration is expressed in years when rates are expressed as decimal changes. It assumes a parallel shift, small yield movement, unchanged cash flows and a consistent compounding convention. It becomes less accurate for large changes and instruments with embedded options.

Convexity improves the approximation because the price–yield relation is curved:

Option-adjusted duration and effective duration are more appropriate when cash flows change as interest rates change, as with callable loans, mortgage portfolios and certain deposits.

Worked example: duration sensitivity

A bond has a price of 98, a modified duration of 4.2 years and a yield increase of 0.75%, or 0.0075 in decimal form. Ignoring convexity:

∆P ÷ P ≈ −4.2 × 0.0075 = −0.0315, or −3.15%.

The approximate price decline is 98 × 0.0315 = 3.087, so the estimated new price is 94.913. This is an approximation, not a guaranteed traded price; actual results depend on convexity, liquidity, spread movement and the yield-curve shape.

5. Foreign exchange and derivatives

Foreign exchange (FX) management involves spot, forward, swap and option transactions. A spot transaction exchanges currencies for near-term settlement. A forward fixes an exchange rate for a future date. An FX swap combines a near-term exchange with a reverse exchange at a later date and is often used for funding or liquidity management. An option gives the buyer a right, but not an obligation, to buy or sell currency at a specified strike price.

A bank’s net open position should be monitored by currency and in aggregate. Exposure can arise from customer transactions, foreign-currency loans, deposits, securities, derivatives and earnings translated from overseas operations. Hedging policy should distinguish transaction exposure, translation exposure and economic exposure.

Derivatives may reduce risk but introduce counterparty, collateral, model, legal, liquidity and basis risks. A hedge can fail if its notional, maturity, index or currency does not match the underlying exposure. Documentation, collateral agreements, valuation adjustment, margin liquidity and close-out rights are therefore essential.

Common interest-rate derivatives include swaps, futures, caps, floors and swaptions. In a plain-vanilla interest-rate swap, one party exchanges fixed interest payments for floating payments on a notional principal. The notional generally is not exchanged. The economic purpose may be to convert fixed-rate funding to floating or to hedge a fixed-rate asset. Derivative use should be linked to a documented risk objective rather than speculative income targets disguised as hedging.

6. Funds transfer pricing

Funds transfer pricing allocates the economic cost and benefit of funding, liquidity and interest-rate risk to business units and products. It enables meaningful product profitability analysis. A lending unit should not appear highly profitable merely because it receives cheap internal funding, while a deposit unit should not be penalised for generating stable liquidity.

A basic matched-maturity FTP assigns each transaction a transfer rate consistent with its tenor, currency, optionality and liquidity characteristics. A loan margin may be expressed as:

For a deposit, the internal contribution may be:

These are management-accounting relationships, not universal accounting identities. The FTP framework should specify the reference curve, liquidity premium, optionality treatment, regulatory liquidity cost, capital allocation and treatment of stable non-maturity deposits.

A single average funding rate is usually inadequate. Matched-maturity FTP better reflects the opportunity cost of funds, while a centralised liquidity charge can allocate the cost of maintaining the survival buffer. Behavioural models are required for products such as current accounts, savings deposits, credit-card balances and prepayable mortgages. The model should be independently validated and periodically back-tested.

7. Investment-portfolio management

Investment portfolios pursue several objectives that may conflict: preserving principal, providing liquidity, earning income, managing duration, meeting collateral needs and supporting strategic or regulatory requirements. Portfolio construction should begin with liabilities and risk appetite rather than with a search for the highest coupon.

Important decisions include:

• Strategic allocation: target shares by asset class, duration, currency and credit quality.
• Tactical positioning: temporary deviations based on market views within limits.
• Credit selection: analysis of issuer capacity, covenants, concentration and migration risk.
• Liquidity assessment: bid–ask spreads, market depth, settlement and stress liquidation value.
• Accounting and capital treatment: classification, fair-value volatility, impairment and prudential consequences.
• Performance measurement: total return, risk-adjusted return, benchmark tracking and attribution.

A portfolio’s holding-period return can be stated as:

The formula assumes values and income are measured consistently and ignores external cash flows unless adjusted for them. Total-return analysis should separate carry, curve movement, spread movement, foreign exchange, trading and realised gains or losses.

8. Integrated ALM governance

ALCO should review balance-sheet forecasts, liquidity gaps, funding concentration, deposit behaviour, NII sensitivity, economic-value sensitivity, duration, capital effects, FX exposures, investment limits and stress results. Decisions should be documented with assumptions and accountability.

A robust ALM process includes:

1. Identification: map all on- and off-balance-sheet exposures.
2. Measurement: calculate contractual and behavioural cash flows, repricing gaps, duration and stress losses.
3. Limit setting: establish risk appetite, escalation thresholds and concentration limits.
4. Hedging and adjustment: alter pricing, funding, portfolio duration, product mix or derivatives.
5. Monitoring: compare actual outcomes with forecasts and limits.
6. Validation: test models, assumptions, data quality and hedge effectiveness.
7. Reporting: provide timely, comprehensible information to management and the board.

Technology supports intraday liquidity dashboards, automated limit monitoring, scenario engines, data lineage and trade capture. Artificial intelligence may help classify deposit behaviour, identify unusual flows or improve forecasting, but it does not remove model risk. Explainability, drift monitoring, human oversight, privacy protection and cybersecurity are necessary. A machine-learning forecast should never override a tested contingency plan without governance approval.

Illustrative case: Meridian Bank’s liquidity and duration challenge

Background

Meridian Bank has a large portfolio of five-year fixed-rate loans funded partly by one-year wholesale certificates of deposit. It also holds government bonds as a liquidity reserve. Deposit growth has slowed, and market rates have risen sharply. The bank’s treasury team reports a positive one-year repricing gap because many loans reprice within the year, but the ALCO is concerned about longer-term economic-value losses and wholesale refinancing risk.

Problem

The positive short-term gap could suggest that rising rates will improve NII. However, wholesale funding will reprice or mature sooner than some assets, deposit betas may rise, and the market value of the longer-duration bond portfolio may decline. A liquidity shock could also make wholesale refinancing expensive or unavailable.

Analysis

The bank constructs three views. First, the contractual maturity ladder identifies refinancing needs. Second, behavioural assumptions estimate deposit stability, loan prepayments and committed-but-undrawn facilities. Third, duration analysis estimates economic-value sensitivity. Stress scenarios include a deposit outflow, a 200-basis-point parallel rate increase, a widening of sovereign spreads and a three-month closure of unsecured wholesale markets.

Treasury finds that the liquidity buffer is adequate in the base case but concentrated in securities that would incur substantial losses if sold after the rate shock. The positive one-year repricing gap is not sufficient evidence of safety because the bank has basis risk, non-parallel curve risk and a duration mismatch beyond one year.

Approach and solution

ALCO approves a package rather than a single trade:

• extend a portion of funding through staggered maturities;
• diversify funding across retail deposits, secured repo and term issuance;
• retain unencumbered high-quality assets in more than one maturity bucket;
• hedge part of the fixed-rate asset duration with pay-fixed/receive-floating interest-rate swaps, subject to counterparty and collateral limits;
• revise loan and deposit FTP to reflect liquidity and optionality costs;
• introduce an early-warning trigger based on deposit outflows, wholesale spreads and collateral haircuts;
• conduct weekly stress reviews until market conditions normalise.

Outcome

The bank accepts a modest reduction in near-term reported income in exchange for lower refinancing concentration and reduced economic-value sensitivity. The hedge is monitored for basis and collateral risk, while the liquidity buffer is assessed at stressed liquidation values rather than book values.

Learning points

A repricing gap, duration measure or regulatory ratio is informative but incomplete. ALM decisions must combine cash-flow liquidity, earnings sensitivity, economic value, market liquidity, behavioural modelling and governance. A profitable hedge can still create liquidity risk through margin calls, and an apparently liquid security can be costly to sell during systemic stress.

Challenges, limitations and ethical considerations

ALM models depend on assumptions that may fail precisely when they matter most. Historical deposit stability may not persist during digital bank runs. Correlations can converge in crises, reducing diversification. Yield-curve shocks may be non-parallel, and accounting values may differ from economic values. Model risk should therefore be managed through conservative assumptions, sensitivity analysis, independent validation and challenger models.

Ethically, treasury professionals must avoid concealing losses through inappropriate valuation, misclassifying speculative trades as hedges, exploiting information asymmetries, or transferring excessive risk to depositors and taxpayers. Fair customer pricing requires that FTP and liquidity costs be used for sound management, not arbitrary discrimination. Conflicts of interest in dealer compensation, benchmark manipulation, excessive leverage and inadequate disclosure are serious governance failures.

Regulatory requirements vary by jurisdiction, but commonly address capital, liquidity, large exposures, market conduct, derivatives reporting, valuation, recovery planning and resolution preparedness. Compliance is a minimum standard. The board remains responsible for ensuring that risk appetite is consistent with the bank’s strategy, capital and operational capacity.

Best-practice principles

1. Manage liquidity daily and intraday, not only at month-end.
2. Use multiple measures: cash-flow gaps, stress survival, LCR, NSFR, concentration, NII and economic value.
3. Separate front-office activity from independent risk control and valuation.
4. Treat behavioural assumptions as models requiring validation.
5. Value liquidity buffers under stressed liquidation conditions.
6. Match hedges to the actual risk factor, maturity, currency and optionality.
7. Use FTP to support economically rational pricing and accountability.
8. Maintain diversified funding and avoid excessive maturity concentration.
9. Integrate climate, cyber, geopolitical and technological scenarios where material.
10. Escalate limit breaches promptly and preserve a credible contingency funding plan.

Chapter Summary

Treasury and ALM coordinate a bank’s funding, liquidity, investments, market risks and balance-sheet structure. Money-market instruments support short-term liquidity, while capital-market instruments provide longer-term funding, investment and risk-management opportunities. Government securities are central to liquidity management but remain exposed to duration, spread, market-liquidity and sovereign risks.

Liquidity management requires contractual and behavioural cash-flow analysis, liquid-asset buffers, stress testing, contingency funding and regulatory measures such as LCR and NSFR. Interest-rate risk can be examined through repricing gaps, NII sensitivity, duration, convexity and economic-value analysis. FX transactions and derivatives can hedge exposures but create counterparty, collateral, basis, model and liquidity risks. FTP allocates funding and liquidity economics across products and business units, while investment management balances safety, liquidity, income, duration and capital effects.

Effective ALM is an integrated governance discipline. No single ratio, model or hedge captures all risks. Strong practice combines independent control, validated data and models, realistic stress testing, diversified funding, ethical conduct and clear ALCO accountability.

Key Terms

Asset–liability management: Coordinated management of assets, liabilities, capital and related risks.

ALCO: Management committee responsible for balance-sheet and market-risk decisions.

Liquidity risk: Risk of being unable to meet obligations without unacceptable loss.

Funding liquidity risk: Inability to obtain or renew cash funding.

Market liquidity risk: Inability to sell or hedge an asset quickly at a reasonable price.

High-quality liquid asset: Asset meeting regulatory or internal standards for reliable monetisation.

Liquidity gap: Difference between expected inflows and outflows in a time bucket.

Repricing gap: Rate-sensitive assets minus rate-sensitive liabilities in a specified bucket.

Duration: Measure of sensitivity of a bond’s value or balance-sheet value to interest rates.

Convexity: Measure that captures curvature in the price–yield relationship.

Funds transfer pricing: Internal allocation of funding, liquidity and risk costs and benefits.

Repurchase agreement: Collateralised borrowing structured as sale and repurchase of securities.

Basis risk: Risk that related rates, prices or indices do not move together.

Foreign-exchange open position: Net exposure to movements in a currency.

Derivative: Contract whose value depends on an underlying rate, price, index or variable.

Hedging: Taking an offsetting position to reduce an identified risk.

LCR: Short-term liquidity-resilience ratio based on HQLA and stressed 30-day outflows.

NSFR: Structural-funding ratio comparing available and required stable funding.

Review Questions

Short Answer Questions

1. Distinguish funding liquidity risk from market liquidity risk.
2. What is the purpose of an ALCO?
3. Define a repricing gap and explain the meaning of a positive gap.
4. Why are behavioural assumptions necessary in liquidity analysis?
5. State two limitations of duration-based price estimation.

Long Answer Questions

1. Explain the roles of treasury, risk management, ALCO and internal audit in a bank’s governance structure.
2. Compare money-market and capital-market instruments, including their uses and major risks.
3. Explain liquidity buffers, stress testing, contingency funding plans, LCR and NSFR.
4. Discuss how duration, convexity and repricing gaps contribute to interest-rate-risk management.
5. Explain the design principles and managerial value of a matched-maturity FTP system.

Analytical / Application Questions

1. A bank has a one-year positive repricing gap but funds five-year fixed-rate loans with short-term wholesale deposits. Analyse why rising rates may still create both earnings and economic-value risks. Recommend controls.
2. Design a stress scenario for a bank facing a deposit run, falling government-bond liquidity and increased collateral haircuts. Identify metrics, management actions and escalation triggers.
3. A treasury desk proposes an interest-rate swap to hedge a bond portfolio. Evaluate the proposal by discussing hedge ratio, basis risk, collateral liquidity, counterparty exposure, accounting and governance requirements.

Multiple Choice Questions with Answers

Question 1

Which instrument is most directly associated with short-term secured funding?

A. Repurchase agreement

B. Ordinary equity share

C. Five-year corporate bond

D. Perpetual preference share

Correct Answer: A. Repurchase agreement

Question 2

A positive repricing gap in a time bucket means that:

A. Rate-sensitive liabilities exceed rate-sensitive assets

B. Rate-sensitive assets exceed rate-sensitive liabilities

C. All assets and liabilities have identical maturities

D. The bank has no liquidity risk

Correct Answer: B. Rate-sensitive assets exceed rate-sensitive liabilities

Question 3

Using the approximation ∆P ÷ P ≈ −D_mod × ∆y, what is the estimated percentage price change when modified duration is 4 and yield rises by 0.50%?

A. −0.50%

B. −1.00%

C. −2.00%

D. +2.00%

Correct Answer: C. −2.00%

Question 4

The LCR primarily measures a bank’s ability to withstand:

A. A short-term stressed liquidity event

B. Long-term equity dilution

C. Annual credit migration only

D. Operational losses from fraud only

Correct Answer: A. A short-term stressed liquidity event

Question 5

Which statement best describes funds transfer pricing?

A. It is the external price charged by a central bank for reserves

B. It allocates internal funding and risk economics across products or units

C. It is a method for calculating statutory capital only

D. It eliminates all interest-rate risk

Correct Answer: B. It allocates internal funding and risk economics across products or units

Question 6

In a repurchase agreement, the securities primarily serve as:

A. Unsecured credit enhancement with no legal relevance

B. Collateral for the financing transaction

C. An equity contribution to the borrower

D. A dividend payment

Correct Answer: B. Collateral for the financing transaction

Question 7

Which risk occurs when a hedge and the underlying exposure respond differently to related market rates?

A. Basis risk

B. Settlement finality

C. Principal risk-free arbitrage

D. Accounting depreciation risk

Correct Answer: A. Basis risk

Question 8

Which measure is most directly focused on structural funding resilience?

A. NSFR

B. Daily trading volume

C. Macaulay duration alone

D. Bid–ask spread alone

Correct Answer: A. NSFR

Question 9

If a bond’s modified duration is 5 years and yield falls by 0.20%, the duration-only estimate of its price change is:

A. −1.00%

B. −0.20%

C. +1.00%

D. +5.20%

Correct Answer: C. +1.00%

Question 10

Why should a liquidity buffer be assessed at stressed liquidation values?

A. Book values always equal sale proceeds during crises

B. Assets may incur haircuts or become difficult to sell under stress

C. It removes the need for contingency funding plans

D. It guarantees positive investment returns

Correct Answer: B. Assets may incur haircuts or become difficult to sell under stress