Asset Liability Management in Banks: CAIIB BFM Guide 2026

Asset Liability Management in banks is one of the most heavily tested areas of the CAIIB Bank Financial Management (BFM) paper, and for good reason. Every commercial bank funds long-dated, illiquid assets such as loans with short-dated, callable liabilities such as deposits. That structural mismatch is the source of a bank's profit and, simultaneously, its greatest risk. Asset Liability Management in banks is the discipline that measures, controls, and prices these mismatches so that a bank can survive a liquidity shock and defend its net interest margin when interest rates move. For CAIIB candidates, mastering ALM means understanding the ALCO, gap analysis, duration, liquidity risk, interest-rate risk, and the Basel III ratios LCR and NSFR. This guide walks through each pillar the way the exam frames it.

The ALCO and the ALM Governance Framework

The Asset Liability Committee, or ALCO, sits at the centre of a bank's balance-sheet management. It is a senior management committee, typically chaired by the CEO or Managing Director, with the treasury head, chief risk officer, and heads of major business lines as members. The ALCO's mandate is to decide the bank's funding strategy, its tolerance for liquidity and interest-rate risk, and the transfer-pricing rates that move funds between deposit-gathering and lending units. The RBI's ALM guidelines require every bank to have a Board-approved ALM policy that defines risk limits, and the ALCO is the body that operates within those limits day to day.

Below the ALCO sits an ALM support group, usually staffed from the treasury middle office, which prepares the structural liquidity statement, the interest-rate sensitivity statement, and stress-test results. The committee meets at least monthly, and more often in volatile markets, to review the gap reports and approve corrective action such as raising bulk deposits, lengthening borrowing tenors, or hedging with derivatives. A well-functioning ALCO turns raw balance-sheet data into deliberate decisions, which is exactly the governance discipline the CAIIB syllabus expects candidates to be able to describe. You can practise ALCO-based questions on the CAIIB mock tests.

Gap Analysis: Liquidity and Interest-Rate Gaps

Gap analysis is the workhorse tool of ALM, and it comes in two flavours. The structural liquidity gap slots every asset and liability into time buckets, from the next day out to over five years, based on when cash actually flows in or out. Within each bucket, outflows are subtracted from inflows to give a net gap. A large negative gap in a near bucket signals that the bank must roll over or raise funding, so RBI prescribes tolerance limits, historically capping the negative cumulative mismatch in the 1-to-14-day and 15-to-28-day buckets at 20 percent of cash outflows.

The interest-rate sensitivity gap uses similar buckets but slots items by their repricing date rather than their cash-flow date. Rate-sensitive assets minus rate-sensitive liabilities in each bucket gives the repricing gap. If a bank is asset-sensitive, meaning more assets reprice than liabilities in a bucket, a rate rise widens its net interest income; if it is liability-sensitive, the same rise squeezes margins. Multiplying the periodic gap by an assumed rate change and the time fraction estimates the earnings-at-risk. Gap analysis is intuitive and exam-friendly, but it is static and ignores the timing of cash flows within a bucket, which is why banks supplement it with duration. Reinforce these calculations with the match-the-concept game.

Duration, Convexity and Interest-Rate Risk in the Banking Book

Duration measures the price sensitivity of an interest-bearing instrument to a change in yield. Macaulay duration is the weighted-average time to receive a bond's cash flows, while modified duration converts that into an approximate percentage price change for a one-percent shift in yield. For a portfolio, the duration of equity is derived from the duration gap: the duration of assets minus the weighted duration of liabilities. A positive duration gap means a rate rise reduces the economic value of equity, which is the essence of interest-rate risk in the banking book, or IRRBB.

Because duration is a linear approximation, large rate moves introduce error, and convexity is the second-order correction that captures the curvature of the price-yield relationship. Bonds with positive convexity lose less when rates rise and gain more when they fall than duration alone predicts. The Basel IRRBB framework, which the RBI has adopted, requires banks to measure both the change in economic value of equity and the change in net interest income under prescribed rate shock scenarios. Understanding how duration and convexity translate a rate shock into a capital impact is a favourite CAIIB question, and it links directly to bond pricing, since a bond's price is simply the present value of its cash flows discounted at the market yield.

Liquidity Risk and the Basel III Ratios: LCR and NSFR

Liquidity risk is the danger that a bank cannot meet obligations as they fall due without incurring unacceptable losses. Basel III introduced two quantitative standards to contain it. The Liquidity Coverage Ratio, or LCR, requires a bank to hold enough high-quality liquid assets to cover its total net cash outflows over a 30-day severe stress scenario, and the ratio must be at least 100 percent. High-quality liquid assets are dominated by cash and government securities, which is why banks hold large SLR portfolios. The RBI phased in the LCR for Indian banks and monitors it monthly.

The Net Stable Funding Ratio, or NSFR, addresses the longer horizon. It requires that available stable funding, weighted by how reliable each funding source is, be at least equal to the required stable funding of the bank's assets over a one-year horizon, again a minimum of 100 percent. Together, LCR and NSFR force banks to reduce reliance on short-term wholesale funding and to match asset tenors with durable liabilities. Beyond these ratios, banks manage liquidity through contingency funding plans and can hedge interest-rate exposure using derivatives such as interest-rate swaps and forward rate agreements. For the definitive rules, consult the Reserve Bank of India master directions on liquidity risk management, which the CAIIB syllabus draws on directly.

Conclusion: Turn ALM Theory into Exam Marks

Asset Liability Management in banks ties together governance through the ALCO, measurement through gap analysis and duration, and Basel III discipline through LCR and NSFR. If you can explain how a repricing gap feeds earnings-at-risk, how a duration gap drives the economic value of equity, and why a bank must hold high-quality liquid assets, you will handle most BFM ALM questions with confidence. Keep RBI circulars and current ratio thresholds in view, since regulators periodically recalibrate them. Ready to convert this into marks? Enrol in the structured CAIIB preparation course, then drill the concepts with full-length practice tests and stay current with the latest RBI rates and updates.