Interest Rate Risk (IRR)
Managing the impact of rate volatility on bank earnings and the economic value of equity.
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The Vulnerability of Net Worth
In India, historically large holdings in Govt. bonds (driven by SLR) make banks susceptible to rate hikes. A 100 bps rise in interest rates can lead to a 10% loss on a 10-year bond portfolio.
Systemic Impact:
Aggregate loss on Rs 10 trillion investment portfolio could reach Rs 30,000 crores for even a 1% rate hike, assuming 3-year asset duration.
Measurement & Mitigation
Gap Analysis
Analyzing mismatches between rate-sensitive assets and liabilities (RSA vs RSL).
Investment Fluctuation Reserve
Creating a cushion using profits from the sale of Govt. securities.
RBI Mandatory Tools:
- Time-to-Repricing: Demand classification of assets/liabilities sent to RBI.
- Hedging Instruments: Usage of FRAs (Forward Rate Agreements) and Interest Rate Swaps.
Key Drivers of IRR
Gap Mismatch
Different maturity/repricing dates for assets and liabilities.
Basis Risk
Asymmetric influence of rate shifts on different asset classes.
Embedded Options
Premature withdrawals or loan prepayments by customers.
Yield Curve Risk
Impact of non-parallel shifts in the yield curve over time.
Extended Risk Components
Settlement Risk
Foreign Exchange Risk
Losses resulting from exchange rate movements on open positions. Integrating with global economies generates growing cross-border transaction volume.
Operational Risk
Expected losses from internal deficiencies in management, control systems, and human error.
Basel E-Banking Ground Rules:
- Effective Board oversight and specific accountability.
- Transaction authentication and segregation of duties.
- Clear audit trails and business continuity planning.