The Central Bank of Nigeria (CBN) is set to contend with a major liquidity challenge in June as an estimated ₦10.90 trillion ($6.9 billion) flows into the financial system, driven largely by the maturity of Open Market Operations (OMO) bills.

According to market data, ₦7.77 trillion ($4.9 billion) in OMO bills will mature during the month, accounting for more than 70 percent of the projected inflows. Additional liquidity is expected from Treasury bill maturities worth ₦995.8 billion ($630 million) and Federation Account Allocation Committee disbursements estimated at ₦1.8 trillion ($1.1 billion).
The anticipated inflow represents a slight increase from the ₦10.53 trillion ($6.7 billion) recorded in May and comes despite the CBN’s aggressive efforts to tighten monetary conditions in recent months.
The central bank withdrew approximately ₦12.06 trillion ($7.6 billion) from the banking system in May through a combination of OMO auctions and other liquidity management tools. However, excess liquidity remained elevated, with average system liquidity rising to ₦5.22 trillion ($3.3 billion), underscoring the scale of funds circulating within the financial sector.
The challenge facing policymakers stems from the nature of OMO instruments. While the bills are used to absorb excess cash from banks and investors, the funds are returned to the system when the instruments mature unless the CBN conducts fresh auctions to mop up the liquidity.
Analysts expect the apex bank to intensify its liquidity management operations throughout June to prevent the excess funds from fuelling inflationary pressures or creating additional demand for foreign exchange. Large liquidity injections often increase the amount of money available for lending and investment, potentially stimulating economic activity but also complicating efforts to maintain price stability.
The development comes at a time when the CBN is pursuing a tight monetary policy stance aimed at curbing inflation and supporting the naira. Excess liquidity can weaken the effectiveness of these measures if not adequately sterilised through market operations.
Banks are also expected to remain major participants in the CBN’s liquidity absorption exercises. Strong liquidity levels have contributed to substantial placements in the Standing Deposit Facility, where financial institutions park surplus funds with the central bank.
Beyond monetary policy concerns, the liquidity surge coincides with continued government borrowing and fiscal spending, both of which inject additional funds into the economy. This creates a delicate balancing act for the CBN as it seeks to support financial system stability while preventing excess cash from undermining inflation and exchange-rate objectives.
Market participants expect June to be one of the busiest months of the year for money market operations, with investors closely watching the CBN’s response to the sizeable inflows. The central bank’s ability to absorb a significant portion of the liquidity will likely influence short-term interest rates, bond yields, and broader financial market conditions in the weeks ahead.
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Emmanuel Abara Benson is a business journalist and editor covering artificial intelligence, global markets, and emerging technology.
He has previously worked with Business Insider Africa and Nairametrics, reporting on finance, startups, and innovation.
His work focuses on AI, digital economy, and global tech trends.
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