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CBN’s N7.9trn excess liquidity may weaken monetary policy

By Kehinde Ibrahim, Lagos

THE Central Bank of Nigeria (CBN) absorbed substantial excess liquidity from the banking system during the week, as balances under its Standing Deposit Facility (SDF) rose to N7.9 trillion, highlighting the continued accumulation of surplus funds amid ongoing efforts to manage monetary conditions.

Data obtained from the apex bank showed that net system liquidity surplus increased to N6.94 trillion from N6.28 trillion in the preceding week, after peaking at N8.4 trillion midweek. The increase was driven largely by maturities of financial instruments and repayments that injected fresh funds into the banking system, reinforcing the need for further liquidity-management operations.

The development underscores the complexities confronting monetary authorities as they seek to balance liquidity conditions, short-term interest rates, inflation management and the availability of credit to the productive sectors of the economy.

Although excess liquidity can strengthen banks’ capacity to meet immediate financial obligations, its concentration within the banking system does not automatically translate into lower borrowing costs or increased lending to businesses and households. The effectiveness of monetary policy depends partly on how available funds are distributed, the incentives facing financial institutions and the extent to which monetary operations influence market interest rates.

For the CBN, the challenge is to ensure that the volume of liquidity circulating within the financial system remains consistent with its monetary policy objectives while avoiding excessive volatility in money-market conditions.

The latest figures illustrate the scale of that challenge, with substantial maturity-related inflows adding to banks’ available funds even as the apex bank continued to deploy instruments designed to absorb surplus cash.

Data from the CBN showed that approximately N2.1 trillion in maturing Open Market Operations (OMO) bills, N392.8 billion in Treasury bills maturities and N330 billion in primary market repayments contributed to the increase in liquidity during the review period.

These repayments returned funds to investors and financial institutions, increasing the volume of cash available for reinvestment, interbank transactions or placement with the central bank.

When government securities and other financial instruments mature, their holders receive repayment of the principal. Unless the funds are immediately reinvested or absorbed through other transactions, the repayments can increase liquidity within the financial system.

The impact depends on the size and timing of the maturities, the distribution of the proceeds among financial institutions and the extent to which the CBN offsets the inflows through its monetary operations.

In the latest review period, the resulting increase in available funds coincided with elevated balances at the SDF, indicating that banks continued to rely on the facility to manage surplus liquidity.

The SDF provides eligible financial institutions with an avenue to place excess funds with the CBN and earn interest, while enabling the apex bank to influence short-term money-market conditions.

Banks may choose the facility when their immediate funding requirements are limited, alternative investment opportunities are less attractive or the returns available compare favourably with the risks and costs associated with other placements.

The N7.9 trillion balance recorded during the week therefore points to the significant volume of funds that banks preferred to keep with the apex bank rather than deploy elsewhere.

However, the figures should not be interpreted as evidence that the banking system lacks lending opportunities or that all funds held at the CBN could be transferred directly into loans to businesses.

Banks must maintain sufficient liquidity to meet customer withdrawals, settlement obligations and regulatory requirements. They must also assess borrowers’ creditworthiness, the likelihood of repayment and the potential returns on lending relative to other investment options.

These considerations become particularly important when economic conditions create uncertainty about businesses’ ability to service their debts.

Nevertheless, the persistent accumulation of surplus funds raises questions about the transmission of monetary policy and the extent to which available financial resources can support productive economic activity.

For businesses seeking financing to expand operations, purchase equipment, maintain inventories or increase production, the critical issue is whether liquidity in the banking system can translate into more accessible credit at sustainable interest rates.

The answer depends not only on the volume of funds available but also on banks’ risk appetite, the cost of funding, capital requirements and the economic prospects of prospective borrowers.

Despite the increase in liquidity, short-term funding conditions remained broadly stable during the week.

The overnight rate declined marginally by two basis points to 20.36 per cent from 20.38 per cent in the preceding week, while the funding rate remained unchanged at 20.00 per cent.

The relatively small movement in these rates suggests that the increase in aggregate liquidity did not result in significant easing in immediate funding costs.

Ordinarily, an increase in available liquidity can reduce the demand for overnight borrowing among banks, potentially putting downward pressure on short-term interest rates. However, the relationship between aggregate liquidity and money-market rates is not always straightforward.

Funds may be concentrated among a limited number of financial institutions, while others continue to face specific funding needs arising from payment obligations, settlement requirements and the timing of transactions.

Consequently, a banking system can record a substantial overall surplus while individual institutions continue to seek short-term funds.

The distribution of liquidity is therefore as important as its aggregate volume in determining money-market conditions.

The relative stability of overnight rates suggests that immediate funding costs remained resilient despite the substantial surplus. It also highlights the importance of examining market rates alongside liquidity data when assessing the effectiveness of the CBN’s interventions.

While overnight funding costs changed only marginally, rates in the Nigerian Interbank Offered Rate (NIBOR) market increased across all reported tenors, suggesting that expectations about future funding conditions remained cautious.

The overnight NIBOR rate rose by approximately four basis points to 20.29 per cent, while the one-month rate increased by 45 basis points to 20.73 per cent.

The three-month rate advanced by 77 basis points to 21.09 per cent, while the six-month rate climbed by 126 basis points to 21.54 per cent.

The increases in longer-tenor rates, particularly the six-month benchmark, indicate that pricing in the interbank market reflected considerations beyond the immediate availability of liquidity.

Rates covering longer periods can incorporate expectations about future monetary policy decisions, the supply of government securities, funding requirements and broader economic conditions.

Market participants may also factor in the possibility that current liquidity conditions could change as existing instruments mature, new securities are issued and the CBN adjusts its monetary operations.

This helps explain why longer-term interbank rates can rise even when overnight funding costs remain relatively stable.

The divergence between the two sets of rates suggests that the market was responding differently to immediate liquidity conditions and expectations about the months ahead.

For businesses and investors, such movements matter because money-market rates influence the pricing of short-term financial instruments and provide indications of funding conditions.

However, changes in interbank benchmarks do not translate automatically into equivalent movements in commercial lending rates, which also reflect deposit costs, operating expenses, credit risks, capital requirements and banks’ expected returns.

Against this backdrop, the CBN continued its liquidity-management efforts through an OMO auction, offering N2 trillion across the 138-day and 180-day maturities.

The auction attracted subscriptions of N2.7 trillion, while total allotments reached N2.6 trillion, indicating strong demand for the instruments and substantial absorption of funds by the apex bank.

The stop rates settled at 17.63 per cent for the 138-day instrument and 17.14 per cent for the 180-day bill.

OMO instruments are among the tools used by the CBN to influence the volume of liquidity available in the financial system. By offering securities for purchase, the apex bank can draw funds away from immediate circulation and lock them into interest-bearing instruments for specified periods.

This approach is particularly relevant when substantial maturities inject fresh funds into the banking system and threaten to increase surplus liquidity beyond the level consistent with the monetary authority’s objectives.

The N2.6 trillion allotment exceeded the initial offer of N2 trillion, demonstrating the scale of funds absorbed through the auction. The N2.7 trillion in subscriptions also showed that investors were willing to commit funds to the instruments at the offered yields.

For investors, the attractiveness of OMO bills depends on their returns relative to competing securities, prevailing inflation expectations, investment risks and expectations about future interest rates.

For the CBN, the challenge is to determine the appropriate volume of securities to offer and the level of allotment required to manage liquidity without generating unnecessary volatility in the money market.

The net effect of the auction must also be assessed alongside other liquidity injections and withdrawals during the period. Although a large allotment can absorb substantial funds, the overall liquidity position will depend on whether the amount withdrawn exceeds or falls short of the funds entering the system through maturities and other transactions.

The persistence of excess liquidity has broader implications for monetary policy, particularly as the CBN seeks to influence financial conditions through interest rates and other instruments.

Liquidity management is central to monetary policy transmission because it affects short-term funding costs, banks’ investment decisions and the conditions under which credit is supplied to the economy.

When excess liquidity is high, the apex bank may need to intensify sterilisation operations to prevent short-term rates from falling more sharply than intended.

Conversely, if liquidity becomes constrained, funding costs can rise and place pressure on financial institutions’ balance sheets, potentially affecting their willingness to extend credit.

The objective is therefore not simply to remove surplus funds from the banking system but to maintain a level and distribution of liquidity consistent with price stability, financial stability and the effective transmission of monetary policy.

The relationship between liquidity and inflation also requires careful assessment.

An increase in bank liquidity does not automatically produce inflationary pressure, particularly when funds remain within the financial system or are absorbed through monetary operations.

The inflationary consequences depend partly on whether the additional funds translate into higher spending and credit creation, as well as on developments in production, supply chains, exchange rates and the availability of goods and services.

Similarly, absorbing excess liquidity does not, by itself, guarantee lower inflation or more affordable credit.

The broader economic impact depends on how monetary operations interact with other policy measures and the structural conditions affecting production, investment and consumption.

For Nigeria, the implications extend to the financing needs of businesses across manufacturing, agriculture, trade and services.

Access to credit remains important for companies seeking to expand production, acquire machinery, finance inventories and improve operational efficiency. Small and medium-sized enterprises, in particular, require financing to manage working capital and withstand fluctuations in demand and operating costs.

The presence of substantial surplus funds in the banking system therefore raises a legitimate question about how financial institutions balance placements with the CBN against lending to the private sector.

However, it would be misleading to suggest that every naira placed with the apex bank could be redirected immediately into loans without affecting banks’ liquidity positions or risk exposure.

Financial institutions must assess the repayment capacity of borrowers and maintain adequate buffers against unexpected withdrawals and other obligations. Where businesses have weak financial records, limited collateral or uncertain cash flows, banks may be reluctant to extend credit regardless of the liquidity available.

High operating costs and uncertain economic conditions can also undermine borrowers’ ability to service loans, increasing the risks associated with lending.

Improving access to finance therefore requires more than encouraging banks to deploy surplus liquidity. It also depends on stronger business fundamentals, reliable financial information, effective credit-risk assessment and a more predictable operating environment.

At the same time, the cost of borrowing remains a critical concern. Although the OMO stop rates recorded during the week were below the reported overnight funding rates, these figures alone do not establish the cost at which banks will lend to businesses.

Commercial lending rates incorporate several additional factors, including the cost of mobilising deposits, administrative expenses, credit risk and the return required by lenders.

Consequently, the effectiveness of monetary policy should be assessed not only through liquidity balances and interbank rates but also through changes in private-sector credit, lending costs and the distribution of financing across economic sectors.

Commenting on the outlook, Cowry Research said liquidity conditions in the coming week would be shaped by the interaction between maturing securities and the CBN’s sterilisation activities.

The research and investment firm projected that approximately N2.13 trillion in expected OMO maturities and N130.72 billion in Treasury bills maturities could inject additional liquidity into the banking system.

The inflows could increase the volume of funds available to financial institutions, depending on how the proceeds are distributed and whether investors reinvest them in new securities.

However, the anticipated N800 billion Treasury bills auction could partially offset the expected injections.

Cowry Research noted that the net impact would depend on subscription levels and the Debt Management Office’s allotment decisions.

A substantial level of absorption through the Treasury bills auction and further monetary operations could moderate the effect of maturity-related inflows. Conversely, if the amount absorbed is relatively limited, more funds could remain available within the banking system.

The interaction between these factors will be important in determining whether the liquidity surplus increases further or begins to ease.

The direction of money-market rates will also depend on banks’ liquidity positions, the timing of financial transactions and expectations about future monetary policy operations.

For the CBN, the coming week presents another opportunity to assess the effectiveness of its liquidity-management framework as maturing instruments and new securities issuances influence the distribution of funds.

For banks, the priority will be to allocate available liquidity among deposit placements, government securities, interbank transactions and private-sector lending while maintaining appropriate risk and liquidity positions.

The N7.9 trillion held at the SDF highlights the scale of surplus funds within the banking system and the importance of the CBN’s intervention in shaping money-market conditions.

The increase in net system liquidity surplus to N6.94 trillion, combined with substantial OMO maturities and the N2.6 trillion allotment recorded at the latest auction, demonstrates the continuing interaction between liquidity injections and sterilisation operations.

Yet the contrasting movements in overnight funding costs and longer-tenor NIBOR rates show that abundant liquidity does not necessarily translate into uniform easing across the money market.

The immediate outlook will depend on the pace of maturity-related inflows, the volume of funds absorbed through Treasury bills and OMO auctions, and banks’ willingness to deploy surplus cash into alternative investment opportunities.

Ultimately, the challenge for the CBN is to ensure that liquidity management supports monetary stability without unnecessarily constraining financial intermediation. This requires balancing the need to control excess liquidity with the broader objective of maintaining a financial system capable of supporting productive investment and sustainable economic growth.

As the apex bank continues to deploy its deposit facility and open-market operations, the direction of interest rates, the distribution of liquidity and developments in private-sector credit will remain important indicators of the effectiveness of its monetary policy framework.

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