Executive Summary

The Reserve Bank of India (RBI) published its final Master Directions on Minimum Capital Requirements for Market Risk for Commercial Banks in September 2026. Modernizing Basel III capital adequacy standards, the directive replaces previous draft standards, introducing explicit calculations for Interest Rate (IR), Equity (EQ), and Foreign Exchange (FX) risks in banks' Trading Books.

Background

The global financial crisis and subsequent volatile interest rate cycles highlighted structural limitations in the traditional standard measurement methods for market risk. Under the Basel Committee on Banking Supervision (BCBS) guidelines, market risk rules were overhauled through the Fundamental Review of the Trading Book (FRTB). The RBI’s final circular aligns domestic commercial banking supervision with these international capital adequacy benchmarks.

What Has Changed

Particulars Previous Framework Revised Market Risk Directions (Sep 2026)

Trading vs Banking Book Boundary Discretionary allocation with limited supervisory review Rigid boundary definitions, documentation rules, and strict internal limits

Risk Sensitivity Broad standardized measurement Granular risk calculations for general and specific market risk components

Key Provisions

• Scope of the Trading Book: Establishes rigorous qualitative criteria defining instruments held with trading intent, eliminating arbitrary capital arbitrage between books.

• Standardized Approach (SA): Introduces explicit sensitivity-based capital requirements covering delta, vega, and curvature risks for interest rate, equity, FX, and commodity positions.

• Foreign Exchange & Commodities: Mandates strict net open position (NOP) calculations and capital charges across all foreign exchange positions.

• Governance & Model Validation: Banks must establish specialized Market Risk Management Committees (MRMC) and independent valuation units.

Applicability

• Covered Entities: All Scheduled Commercial Banks (excluding Small Finance Banks, Payments Banks, and Regional Rural Banks).

Practical Implications

• Treasury & Capital Adequacy: Banks may experience adjustments in their minimum capital charges, requiring shifts in trading book allocations and capital planning.

• Risk IT Architecture: Treasury systems require analytical upgrades to handle complex valuation matrices and risk sensitivities.

• Internal Controls & Audit: Risk audits will focus on internal transfers between banking and trading portfolios to ensure compliance with strict non-reclassification rules.

What Should We Do

• Conduct an end-to-end portfolio review of instruments designated in the Trading Book.

• Upgrade treasury management systems to compute granular sensitivity metrics for Interest Rate, Equity, and FX exposures.

• Formulate revised internal policies covering boundary designations and supervisory approvals.

• Engage internal capital assessment (ICAAP) teams to evaluate the revised capital impact.

KGS Perspective

Capital adequacy is moving toward data-intensive, risk-sensitive computation. Bank management, treasury leadership, and statutory auditors must maintain disciplined verification of valuation techniques, ensuring trading book risk is accurately capitalized.

Conclusion

The RBI’s Market Risk Directions establish a resilient supervisory framework for commercial banks, ensuring capital reserves remain commensurate with market volatility.

Source / Regulatory Reference

• Regulator: Reserve Bank of India (RBI)

• Notification / Circular / Regulatory Reference: RBI Directions on Minimum Capital Requirements for Market Risk [Issued September 2026]

• Official Document Link: https://www.rbi.org.in