CBN Withdraws N1.57trn As Liquidity Tightening Intensifies

By Jennete Ugo Anya

The Central Bank of Nigeria (CBN) withdrew N7.303 trillion from the financial system in May 2026 and injected N5.734 trillion through maturing instruments, resulting in a net liquidity withdrawal of N1.569 trillion. The operations, conducted between May 7 and May 29, were driven primarily by aggressive Open Market Operations (OMO) sales, including a record N3.692 trillion auction on May 21. The intervention reflects the apex bank’s continued effort to absorb excess naira liquidity, reinforce its monetary tightening stance and contain inflationary and exchange-rate pressures despite significant liquidity inflows from maturing securities and fiscal operations.

DECISION HIGHLIGHT

CBN has reinforced its preference for liquidity sterilisation through OMO instruments, signalling that inflation control and monetary stability remain higher policy priorities than near-term liquidity expansion.

DECISION MEMO

The May liquidity data provides insight into the current phase of Nigeria’s monetary policy cycle. While interest-rate decisions often attract greater public attention, liquidity management operations increasingly reveal the central bank’s practical policy intentions.

The net withdrawal of N1.569 trillion demonstrates that CBN remains concerned about the volume of excess liquidity circulating within the banking system. This concern is linked to the risk that surplus funds could intensify inflationary pressures, increase foreign exchange demand or weaken monetary policy transmission.

The scale of intervention is particularly notable because it occurred against the backdrop of substantial liquidity injections from maturing OMO bills and government-related spending. Rather than allowing these inflows to expand system liquidity, CBN repeatedly returned to the market to absorb funds through large-scale OMO auctions.

The record N3.692 trillion OMO sale on May 21 illustrates the extent of that commitment. The operation effectively reversed much of the liquidity injected through earlier maturities and reinforced the bank’s tightening posture.

A broader policy tension also emerges from the data. While monetary authorities are attempting to restrict liquidity growth, fiscal operations continue to inject liquidity into the economy. Nigeria’s 2026 budget deficit of N20.12 trillion, with more than 70 percent expected to be financed domestically, creates a structural source of liquidity expansion that monetary authorities must continually offset.

The result is a balancing act between fiscal expansion and monetary restraint.

The data further suggests that CBN is not yet convinced that liquidity conditions have tightened sufficiently. Despite the month’s net withdrawal, banks still maintained N5.89 trillion in the Standing Deposit Facility (SDF) by month-end, indicating the persistence of significant excess reserves.

Consequently, May’s operations should be interpreted less as a temporary intervention and more as evidence of a continuing tightening cycle.

DATA BOX

• Total liquidity withdrawn: N7.303 trillion
• Total liquidity injected: N5.734 trillion
• Net liquidity withdrawal: N1.569 trillion
• Largest OMO auction:
  • N3.692 trillion on May 21
• OMO subscriptions accepted:
  • N1.525 trillion (33-day tenor)
  • N2.168 trillion (138-day tenor)
• Largest single-day liquidity injection:
  • N2.247 trillion OMO maturity repayment on May 19
• Primary market sales:
  • N731.75 billion (May 7)
  • N829.33 billion (May 21)
• Net OMO withdrawal:
  • N1.525 trillion
• Net primary market withdrawal:
  • Approximately N44 billion
• SDF monthly low:
  • N2.70 trillion (May 22)
• SDF month-end balance:
  • N5.89 trillion
• Cumulative OMO sales, January-April 2026:
  • N30.12 trillion
• 2026 budget deficit:
  • N20.12 trillion
• Expected domestic financing:
  • More than 70 percent
• Expected June inflows:
  • Approximately N2.04 trillion

WHO WINS / WHO LOSES

Who Wins

• Fixed-income investors benefiting from elevated yields.
• Savers seeking stronger monetary discipline.
• Foreign portfolio investors favouring liquidity control and macroeconomic stability.
• Institutions holding short-duration government securities.

Who Loses

• Borrowers facing tighter liquidity conditions.
• Businesses dependent on inexpensive credit.
• Banks seeking stronger loan growth opportunities.
• Sectors sensitive to higher financing costs.

POLICY SIGNALS

The data signals continued commitment to monetary tightening despite signs of improving macroeconomic stability. CBN appears determined to maintain credibility on inflation control and exchange-rate management, even as fiscal operations generate additional liquidity pressures.

The operations also suggest increasing reliance on OMO instruments as the primary mechanism for monetary policy transmission.

INVESTOR SIGNAL

For investors, the message is that liquidity conditions are likely to remain actively managed. High OMO activity and continued sterilisation support the outlook for elevated fixed-income yields and stronger monetary discipline.

The persistence of excess reserves, however, indicates that the tightening cycle may not yet be complete. Future liquidity injections from maturing securities could trigger additional CBN interventions.

RISK RADAR

• Renewed inflationary pressures from fiscal spending.
• Liquidity expansion linked to maturing OMO instruments.
• Higher domestic borrowing requirements from the 2026 budget.
• Potential crowding out of private-sector credit.
• Elevated funding costs for businesses.
• Exchange-rate pressures if excess liquidity returns rapidly.
• Reduced effectiveness of tightening measures if fiscal injections accelerate.

The central policy challenge remains the interaction between fiscal expansion and monetary restraint. As long as significant liquidity continues to enter the system through deficit financing and maturing securities, CBN is likely to remain engaged in large-scale liquidity sterilisation to preserve monetary stability.