The Central Bank of Nigeria (CBN) absorbed N3.04 trillion from the banking system through a single Open Market Operations (OMO) auction conducted on June 5, 2026, as investor demand significantly exceeded the amount offered.
Analysis of the auction results and financial market data showed that total subscriptions reached N3.275 trillion against an offer of N600 billion. This represents an oversubscription rate of 5.46 times the amount offered.
The development highlights the CBN’s continued aggressive liquidity sterilisation strategy as it seeks to manage excess liquidity and maintain its monetary tightening stance.
The latest exercise follows two major OMO auctions conducted in May, which also absorbed trillions of naira from the financial system.
A breakdown of the June 5 auction showed strong demand across all three tenors offered by the apex bank.
The seven-day OMO bill attracted subscriptions worth N179 billion against a N200 billion offer. The CBN allotted N169 billion at a stop rate of 21.54 per cent.
The 35-day OMO bill recorded subscriptions of N614.43 billion compared to the N200 billion offered. The apex bank allotted N465 billion at a stop rate of 21.40 per cent.
The 133-day OMO bill emerged as the most attractive instrument, drawing subscriptions of N2.48 trillion against an offer of N200 billion. The CBN allotted N2.41 trillion at a stop rate of 20.02 per cent.
In total, the apex bank offered N600 billion, received subscriptions worth N3.275 trillion, and allotted N3.04 trillion, resulting in a net liquidity withdrawal of N3.04 trillion from the banking system.
The strong demand for longer-tenor instruments suggests that investors remain willing to lock in funds for extended periods despite slightly lower yields.
The 133-day bill recorded an oversubscription ratio of more than 12 times, reflecting expectations that monetary tightening will remain in place for the foreseeable future.
Additional market activities during the review period also contributed to tighter liquidity conditions.
Primary market operations conducted on June 4 resulted in a net liquidity withdrawal of N992.68 billion. This followed N1.46 trillion in Nigerian Treasury Bills and Federal Government bond sales against repayments of N464.60 billion.
Liquidity levels within the banking sector also declined during the week.
Opening balances of banks and discount houses dropped from N108.27 billion on June 2 to N45.14 billion on June 3 before settling at N43.92 billion on June 5.
The decline of N64.35 billion represents a 59.43 per cent reduction over the period.
Similarly, balances in the Standing Deposit Facility (SDF) moderated. Deposits stood at N5.29 trillion on June 3, increased slightly to N5.35 trillion on June 4, and eased to N4.74 trillion on June 5.
The reduction in SDF balances suggests that liquidity conditions are gradually tightening, although substantial excess funds remain within the banking system.
Market data indicates that the CBN continues to rely heavily on OMO auctions and primary market operations as key tools for managing liquidity under the current monetary policy framework.
Despite these efforts, significant liquidity inflows are expected into the financial system during June.
According to projections by the Financial Markets Dealers Association (FMDA), total inflows into the banking sector could reach N10.90 trillion during the month.
Of this amount, approximately N7.77 trillion is expected to come from maturing OMO bills.
The N3.04 trillion absorbed during the June 5 auction represents about 27.9 per cent of the projected monthly inflows. It also effectively sterilised the N2.73 trillion OMO repayment that matured on the same day.
Between January and April 2026, cumulative OMO sales reached approximately N30.12 trillion, underscoring the scale of the CBN’s liquidity management operations.
The latest auction strengthens expectations that the apex bank will maintain its tight monetary policy stance throughout the second quarter of the year.
By allotting N2.41 trillion in the 133-day instrument, the CBN appears to be extending the maturity profile of its OMO portfolio while reducing the risk of large liquidity injections from short-term maturities.
However, the N4.74 trillion balance in the Standing Deposit Facility as of June 5 indicates that excess liquidity remains a key feature of Nigeria’s banking system despite ongoing liquidity mop-up efforts.
