Indian commercial banks are poised to report mark-to-market (MTM) treasury losses for the second quarter of FY27 (July–September 2026), ending a multi-quarter streak of non-interest income gains as sovereign borrowing costs hardened across the yield curve. The benchmark 10-year government bond (G-sec) yield climbed 42 basis points over the quarter, driven by elevated crude oil prices, persistent foreign institutional selling, and growing market expectations of an interest rate hike by the Reserve Bank of India’s (RBI) Monetary Policy Committee.
Key takeaways
- Sharp curve hardening: The benchmark 10-year sovereign bond yield increased by 42 basis points in Q2FY27, crossing the critical 7.00% threshold on September 11, 2026.
- Widespread maturity sell-off: The five-year bond yield jumped 43 basis points to finish at 6.85%, while seven-year and 15-year paper climbed by 50 basis points and 40 basis points, respectively.
- Earnings drag on AFS portfolios: Under an inverse price-yield relationship, the yield jump will compel state-run and private lenders to book valuation markdowns across their Available-for-Sale (AFS) and Held-for-Trading (HFT) investment books, compressing non-interest income.
- Convergence of negative macro triggers: The sell-off was compounded by soaring global bond yields (the 10-year US Treasury yield surged ~81 basis points), Middle East energy supply friction, rupee depreciation, and heavy domestic debt issuances.
- Deposit-side cushion: Strong retail deposit mobilisation and special foreign currency non-resident [FCNR(B)] inflows under the RBI’s swap window will provide operational support, partially offsetting treasury pain via steady Net Interest Margins (NIMs).
How bond yield hardening forces treasury markdowns
To understand why rising yields compress bank earnings, it is necessary to examine how scheduled commercial banks manage their vast statutory investment portfolios.
Under Indian banking regulations, lenders are required to allocate a minimum of 18% of their Net Demand and Time Liabilities (NDTL) into sovereign paper to satisfy Statutory Liquidity Ratio (SLR) mandates. Banks categorize these fixed-income holdings into distinct accounting classifications:
- Held to Maturity (HTM): Bonds intended to be held until redemption, shielded from day-to-day market price fluctuations.
- Available for Sale (AFS): Securities that can be traded or held, requiring periodic mark-to-market valuation against prevailing market prices.
- Held for Trading (HFT): Active trading positions, marked to market dynamically with net gains or losses recognized directly in the quarterly profit and loss (P&L) statement.
Because bond prices move inversely to bond yields, a sudden upward surge in market yields causes the capital value of fixed-coupon paper to decline.
When yields fell throughout 2025 during the RBI’s monetary easing cycle, banks recognized substantial treasury profits by liquidating or marking up their trading assets. In the September quarter of FY27, that dynamic reversed. The 42-basis-point hardening across the 10-year benchmark, paired with a 50-basis-point spike in seven-year maturities, forces bank treasury desks to book mark-to-market write-downs, directly depressing non-interest income lines in upcoming Q2 financial statements.
THE BOND PRICING INVERSE LEVERAGE:
[Macro Shocks: Crude Oil + Global Yields + Rate Hike Bets]
│
▼
[Sovereign Bond Yields Harden Across Curve]
- 10-Year G-Sec: +42 bps (Crosses 7.00%)
- 7-Year G-Sec: +50 bps
- 5-Year G-Sec: +43 bps (Reaches 6.85%)
- 15-Year G-Sec: +40 bps
│
▼
[Underlying Bond Prices Fall Proportionately]
│
▼
[Available-for-Sale (AFS) & Trading Portfolios Marked Down]
│
▼
[Quarterly P&L Impact: Lower Non-Interest Income / Treasury Losses]
The macro catalysts: Oil, foreign outflows, and policy rate expectations
The sell-off that gripped Indian sovereign paper in Q2FY27 stemmed from a convergence of domestic and global headwinds that shifted monetary policy sentiment:
1. Rebound in energy prices and retail inflation
West Asian geopolitical conflict and maritime transport constraints triggered sustained price volatility across international energy benchmarks. With crude oil prices remaining elevated throughout the quarter, India’s domestic headline inflation accelerated to 4.82% in August, drifting above the RBI’s medium-term 4.0% target and demonstrating broader price pressures outside of volatile food items.
2. Surging global yields and currency defense
Global debt markets underwent a pronounced repricing as major Western central banks signaled prolonged monetary vigilance. The benchmark 10-year US Treasury yield surged approximately 81 basis points during the quarter. The resulting divergence in capital returns fueled persistent selling by Foreign Portfolio Investors (FPIs) in both domestic equity and debt markets. As the Indian rupee faced depreciation pressure, the Reserve Bank intervened in the foreign exchange market to smooth volatility, inadvertently draining rupee liquidity from the banking system.
3. Shift from rate-cut optimism to rate-hike speculation
Heading into FY27, domestic debt markets had anticipated a prolonged pause or further policy easing following the reduction of the policy repo rate to 5.25%. However, the combination of stubborn inflation prints, global tightening, and hawkish signals in RBI commentary led money markets to price in an active reversal. A consensus poll of economists and bankers conducted ahead of the October Monetary Policy Committee meeting indicated expectations of a potential 25-basis-point repo rate hike—a sharp pivot that prompted institutional bond desks to aggressively trim duration risk.
| G-Sec Maturity Tenor | Quarter-Start Baseline | Q2FY27 Closing Level | Yield Expansion (Quarterly Change) | Primary Market Driver |
| 5-Year Benchmark | ~6.42% | 6.85% | +43 bps | Rate hike repricing in intermediate corporate paper |
| 7-Year Paper | ~6.48% | 6.98% | +50 bps | Severe duration offloading by mutual funds & banks |
| 10-Year Benchmark | ~6.60% | 7.02% | +42 bps | Sovereign benchmark crossing psychological 7% line |
| 15-Year Paper | ~6.75% | 7.15% | +40 bps | State Development Loan (SDL) supply and supply absorption |
Source: Compiled from domestic market data, fixed income dealer updates, and primary treasury reports.
Divergent impact: Public sector versus private lenders
The severity of the treasury drag in Q2FY27 will not fall evenly across the banking sector. The impact depends largely on the average modified duration of each bank’s investment portfolio and their statutory classification choices:
- Public Sector Undertaking (PSU) Banks: State-run lenders typically hold larger excess statutory liquidity buffers beyond the mandatory 18% requirement, often maintaining higher exposure to longer-duration sovereign and state-development bonds within their AFS portfolios. Consequently, PSU banks are expected to absorb a more noticeable compression in operating profit margins.
- Private Sector Banks: Over recent years, large private lenders have systematically reduced portfolio duration, favoring shorter-maturity commercial paper, treasury bills, and floating-rate corporate debt to mitigate interest-rate cyclicality. While private banks will not be immune to trading markdowns, their relative reliance on fee-based retail income provides greater insulation.
Fortunately for both cohorts, the core lending business has exhibited stability. Ahead of the Q2 earnings announcements, early business updates from lenders such as Canara Bank and peers revealed solid double-digit domestic credit growth (advances expanding 16% to 17% year-on-year), supported by robust capital expenditure credit lines and resilient consumption borrowing.
Mitigating factors: FCNR(B) deposits and corporate credit margins
While non-interest income from treasury trading faces a downturn, the quarter brought parallel developments that will help protect bottom lines:
- Foreign Currency Deposit Inflows: Both state-run and private lenders recorded accelerated deposit growth toward the tail end of the quarter, aided by substantial foreign currency non-resident [FCNR(B)] mobilisations facilitated under the RBI’s concessional swap window. This influx of foreign-origin capital alleviated domestic deposit-competition pressures, helping stabilize funding costs.
- Lending Rate Transmission: The hardening of broader money market yields allows corporate loan pricing desks to re-price short-term working capital facilities and external benchmark lending rates (EBLR) higher. Banks with a high proportion of floating-rate loan books will see asset yields tick upward, providing support to Net Interest Margins (NIMs) heading into the second half of the fiscal year.
What could happen next
- RBI Monetary Policy Committee Outcome: The forthcoming policy resolution from the RBI MPC will serve as the immediate market anchor. A formal rate hike or an explicitly hawkish change in policy stance will likely cement 10-year yields above 7.00%, while a neutral pause paired with liquidity-support measures could spark an immediate short-covering rally.
- Second-Half Market Borrowing Absorption: The market will closely track the central and state governments’ borrowing calendar for H2FY27. The ability of domestic institutional investors (life insurers, pension funds, and provident trusts) to absorb weekly auctions without pushing yields further upward will dictate treasury profitability for the remainder of the fiscal year.
- Q2 Earnings Disclosures: As earnings season kicks off in mid-October, equity analysts will scrutinize the “Other Income” breakdown of bellwether banks to quantify the exact quantum of MTM provisions versus core operational revenue.
Frequently asked questions
What are treasury losses in banking?
Treasury losses occur when a bank’s investments in government bonds and other fixed-income securities lose market value due to rising interest rates or yields. Because bond prices fall when yields rise, banks must mark down the value of the securities held in their trading or Available-for-Sale (AFS) portfolios, reducing their non-interest income and overall quarterly profit.
Why did government bond yields rise so sharply in Q2FY27?
Bond yields surged due to three primary factors: a spike in global crude oil prices that raised domestic inflation to 4.82%, a global sell-off in sovereign debt (such as US Treasuries), and growing market expectations that the Reserve Bank of India’s MPC might reverse its easing stance and hike policy repo rates.
How does this affect ordinary retail bank customers?
For retail consumers, bank treasury losses primarily affect quarterly corporate earnings rather than day-to-day accounts. However, because rising bond yields reflect broader increases in borrowing costs across the economy, banks may gradually increase deposit interest rates on fixed deposits (FDs) while similarly adjusting interest rates upward on new floating-rate loans.
What is the difference between HTM and AFS investment categories?
Securities categorized under Held to Maturity (HTM) are intended to be held until their final redemption date; they do not have to be marked to market and are immune to quarterly P&L volatility from yield changes. Securities in the Available for Sale (AFS) and Held for Trading (HFT) categories must be marked to market, meaning any decline in bond prices must be recognized as an accounting provision or loss.
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