A 100 trillion yuan pivot marks a new era for Chinese banking, swapping traditional credit risk for the systemic uncertainties of market volatility.
Chinese commercial banks' bond holdings have surpassed 100 trillion yuan ($15.4 trillion), a historic milestone that signals a definitive shift away from credit-driven expansion as weak loan demand pressures lenders to seek returns in capital markets.
"This isn't a choice, it's a necessity," said Lou Feipeng, a researcher at Postal Savings Bank of China. He noted that state-owned banks, benefiting from stable, low-cost funding, are better positioned for this shift, while smaller banks face greater constraints.
As of year-end 2025, bonds accounted for 25% of total bank assets, up 7 percentage points from a decade ago, according to a People's Bank of China report. The ratio of bonds to loans has climbed to 35%, a 6 percentage point increase over the same period, underscoring the depth of the structural change. This trend diverges sharply from global peers in the US and Japan, where concerns over inflation are driving yields higher.
This structural rebalancing swaps the known devil of non-performing loans for the unpredictable market risk tied to macroeconomic interest rates, exposing bank profitability and capital adequacy to the volatility of bond prices in a way the sector has never before experienced.
Divergent Paths to a Crowded Trade
Faced with this system-wide migration to the bond market, different types of banks are taking starkly different paths. Large state-owned banks, leveraging their low funding costs, have absorbed a massive volume of government debt. At Agricultural Bank of China, financial investments grew to 16.32 trillion yuan, or 33.5% of total assets by the end of 2025, with over 72% of those investments held in amortized cost (AC) accounts, signaling a conservative, hold-to-maturity strategy.
In contrast, Bank of China has been more restrained, with investment assets accounting for a smaller portion of its balance sheet. It holds nearly half of its investment portfolio in fair-value-through-other-comprehensive-income (FVOCI) accounts, giving it more flexibility.
The divergence is more pronounced among joint-stock banks. Ping An Bank had 44.6% of its financial investments in fair-value-through-profit-and-loss (FVTPL) accounts, a direct trading book that exposes earnings to market swings. Meanwhile, others like China Merchants Bank held over half their investments in AC accounts, prioritizing stable income.
The Illusion of Profit
While the pivot to bonds has propped up balance sheets, the profitability it generates is fragile. In 2025, listed banks' investment income grew 18.2%, but this was largely offset by losses from fair-value changes as bond markets fluctuated. The combined result was a 1.6% year-over-year decline in total investment-related gains.
The volatility of FVTPL accounts is a primary source of this fragility. Ping An Bank, for example, saw a 3.1 billion yuan gain from this account in 2024 turn into a 2.5 billion yuan loss in 2025, contributing to a 5.6 percentage point drag on its net profit growth. For smaller institutions like Qingnong Commercial Bank, unrealized losses from its trading book wiped out nearly a quarter of its annual profit.
To smooth out these fluctuations, banks are increasingly cashing in unrealized gains stored in their non-trading accounts (FVOCI and AC). Analysts at CICC noted that banks are selling bonds from these portfolios to bolster current earnings. While a common practice, it is an advance on future financial buffers, and "excessive realization is not sustainable," CICC's Wang Ziyu warned.
A System-Wide Bet on Low Rates
Underpinning this entire strategy is a massive, system-wide bet on falling or stable interest rates, executed by extending portfolio duration. As yields on short-term assets have collapsed, banks have been forced to buy 10-year, or even 30-year bonds to earn a sufficient return over their funding costs.
This collective "reach for duration" has pushed the average investment portfolio duration for listed banks to 59.2 months (nearly five years), according to CICC. At this level, every 1-basis-point increase in market interest rates could theoretically trigger a 500 million yuan valuation loss for a bank with a 1 trillion yuan investment portfolio.
The risk is a direct echo of the dynamic that led to the collapse of Silicon Valley Bank in 2021, which had loaded up on long-duration bonds during a period of low rates only to face catastrophic unrealized losses when rates rose. While Chinese banks face a different regulatory and market environment, the fundamental risk of a duration mismatch in a shifting rate cycle remains a potent threat hanging over the entire sector.
This article is for informational purposes only and does not constitute investment advice.
