Credit intermediation in the non-bank financial intermediation (NBFI) sector has become a defining feature of modern financial systems. NBFI entities play a critical role in expanding credit supply, enhancing competition, and fostering innovation, particularly in segments underserved by traditional banks. At the same time, the growing scale, complexity, and interconnectedness of non-bank credit intermediation have elevated its relevance for financial stability, especially during periods of stress.
From a system-wide perspective, credit assets—comprising loans, debt securities, and deposit assets—continue to grow broadly in line with total financial assets. Banks remain dominant in traditional lending, holding over four-fifths of total loan assets. However, this dominance masks a structural shift in the composition of credit intermediation. The NBFI sector now holds the majority of debt securities, underscoring its central role in market-based credit provision. This migration of credit risk from bank balance sheets to capital-market-oriented intermediaries has altered the transmission channels of financial stress.
Within the universe of other financial intermediaries (OFIs), credit growth has been uneven but strategically important. Money market funds (MMFs) and trust companies have been key contributors to recent loan asset growth. In Japan, the normalization of monetary policy triggered portfolio reallocation by money reserve funds away from deposits toward money market instruments, illustrating how shifts in the interest rate environment can rapidly reshape non-bank balance sheets. In China, regulatory reform in asset management enabled trust companies to expand their credit activities, highlighting the powerful interaction between regulatory frameworks and non-bank credit cycles.
While such developments enhance credit availability, they also expose structural vulnerabilities. Many NBFI entities are less resilient to liquidity shocks than banks and lack direct access to central bank backstops. During downturns, this can result in abrupt deleveraging, asset fire sales, and a sharp contraction in credit to the real economy. Unlike banks, whose lending is constrained by prudential capital and liquidity regimes, non-bank credit intermediation is often shaped by market sentiment and funding conditions, amplifying procyclicality.
The growing importance of fintech lending further complicates the stability landscape. Data collected under the G20 Data Gaps Initiative reveal that fintech lending remains a relatively small share of overall OFI loan assets, but its growth trajectory and structural characteristics warrant close supervisory attention. Much of this activity is concentrated in non-bank deposit-taking corporations and marketplace platforms that connect lenders and borrowers. While these models improve efficiency and financial inclusion, they also create new interlinkages between households, non-financial corporations, and financial institutions, potentially transmitting shocks across sectors and borders.
Interconnectedness is further intensified by the funding structures used by NBFIs. Wholesale funding and repurchase agreements enable non-banks to expand balance sheets rapidly and engage in maturity and liquidity transformation outside the banking system. Although such mechanisms support market liquidity and risk sharing in normal times, they can become powerful channels of contagion under stress. Short-term wholesale funding, in particular, introduces run risk, while extensive reliance on repos increases dependence on collateral valuations and market confidence.
The systemic implications are clear. Credit intermediation by non-banks has become both indispensable and potentially destabilizing. Its benefits—diversification of funding sources, innovation, and competitive pressure—are inseparable from its risks, including leverage, opacity, and procyclicality. Financial stability outcomes increasingly depend not on the health of banks alone, but on the resilience of the broader credit ecosystem in which banks, non-banks, fintech platforms, and capital markets are tightly interwoven.
For policymakers and supervisors, the challenge lies in preserving the efficiency gains of non-bank credit intermediation while mitigating its systemic risks. This requires improved data on credit exposures, funding structures, and interconnections; a macroprudential perspective that extends beyond the banking perimeter; and closer alignment between regulatory frameworks for banks and non-banks performing bank-like functions. As credit intermediation continues to migrate across institutional boundaries, financial stability will depend on the ability of authorities to monitor, anticipate, and address vulnerabilities wherever they arise.
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