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The Central Bank of Nigeria (CBN) is intensifying regulatory oversight of the banking sector following the conclusion of the industry’s recapitalisation exercise, amid growing concerns over the concentration of assets among a handful of lenders.
According to industry data, five of Nigeria’s largest banks now account for approximately 57% of the banking sector’s total assets, underscoring the increasing dominance of Tier-1 institutions and prompting the apex bank to reinforce its supervisory framework.
Greater Focus on Governance and Risk
Having completed one of the country’s most significant banking recapitalisation programmes in recent years, the CBN is shifting its attention from capital raising to stronger corporate governance, risk management and regulatory compliance.
The regulator has indicated that banks are now expected to match stronger capital positions with improved board oversight, prudent risk management and stricter adherence to governance standards.
Speaking on the post-recapitalisation landscape, CBN Governor Olayemi Cardoso, represented by Olubukola Akinwunmi, Director of Banking Supervision, stressed that the next phase of reforms is aimed at ensuring that stronger balance sheets translate into a safer and more resilient financial system.
Industry Assets Increasingly Concentrated
The concentration of industry assets among a few large lenders reflects the widening gap between Nigeria’s biggest banks and smaller competitors.
Tier-1 institutions have continued to strengthen their market positions through larger capital bases, stronger profitability and greater capacity to finance large-scale transactions.
While this enhances the ability of leading banks to support major infrastructure projects and corporate lending, analysts say it also places greater importance on effective supervision, given the systemic significance of these institutions.
The concentration trend has become even more pronounced following the recapitalisation programme, which enabled major banks to raise substantial new capital while positioning themselves for future growth.
Recapitalisation Ushers in New Regulatory Phase
The recapitalisation exercise required banks to meet higher minimum capital thresholds designed to strengthen the industry’s resilience and support Nigeria’s long-term economic ambitions.
With the capital-raising phase largely completed, the CBN is now placing greater emphasis on ensuring that newly raised funds are backed by sound governance practices and effective risk controls.
Officials say the objective is not simply to build larger banks but to create institutions capable of supporting sustainable economic growth while maintaining financial stability.
Risk-Based Supervision Takes Centre Stage
A key element of the CBN’s post-recapitalisation strategy is a stronger risk-based supervisory framework.
Under the new approach, banks are expected to align their capital planning more closely with the risks they assume, while strengthening oversight of credit, market and operational risks.
The regulator has also introduced enhanced stress-testing requirements aimed at assessing how financial institutions would perform under adverse economic conditions, reinforcing the sector’s resilience against future shocks.
Implications for the Banking Industry
The growing dominance of Nigeria’s largest lenders presents both opportunities and challenges.
On one hand, stronger capital positions improve banks’ ability to finance large-ticket investments, support infrastructure development and contribute to the country’s broader economic objectives.
On the other, increased concentration means that regulators must closely monitor systemically important institutions to prevent governance failures or excessive risk-taking that could have wider implications for the financial system.
Industry experts believe effective oversight will be essential as competition evolves and banks expand into more sophisticated financial services.
Strengthening Financial Stability
The CBN maintains that the tighter regulatory framework is intended to enhance confidence in Nigeria’s banking industry rather than impose unnecessary restrictions.
By combining stronger capital requirements with enhanced governance standards, risk-based supervision and closer regulatory monitoring, the apex bank aims to build a more resilient financial system capable of supporting long-term economic development.
As Nigeria’s five largest banks continue to command more than half of industry assets, the effectiveness of the CBN’s oversight will play a critical role in safeguarding financial stability and ensuring that the sector remains well-positioned to support businesses, investors and the wider economy.
