Nigeria’s decisive 350-basis-point cut in its benchmark interest rate has lowered the cost of money and strengthened prospects for credit-led economic growth, but the sharp easing has also heightened the need to prevent weaker domestic yields from triggering capital outflows and renewed pressure on the naira.
The Central Bank of Nigeria (CBN), at its September 22, Monetary Policy Committee (MPC) meeting, cut the Monetary Policy Rate (MPR) from 26.50 percent to 23 percent, while narrowing the standing facilities corridor from +50/-450 basis points to +50/-300 basis points.
The move reduced the Standing Deposit Facility (SDF) rate to 20 per cent and the Standing Lending Facility (SLF) to 23.50 per cent, signalling greater confidence in the recent moderation in inflation and a policy shift towards supporting economic activity.
However, analysts said the lower interest-rate environment could alter the attractiveness of Nigerian fixed-income assets to foreign portfolio investors (FPIs), particularly if the naira comes under renewed depreciation pressure.
A policy brief by Africa Business Convention, titled “Evaluating the CBN’s September 2026 Monetary Easing, Corridor Compression, and FPI Dynamics”, said capital flight was unlikely to be driven by yield compression alone.
It identified currency convertibility concerns, severe foreign exchange shortages and fears of currency collapse as more important triggers of capital reversals.
According to the report, Nigeria’s external position provides important buffers against such risks, with gross foreign exchange reserves estimated at $55.25 billion in the third quarter of 2026, equivalent to about 11.3 months of import cover.
It also cited a Q2 2026 current account surplus of $7.54 billion, supported by stronger oil production and expanding non-oil export earnings, as a factor reducing the economy’s dependence on volatile portfolio flows.
The report further noted that the naira had appreciated by approximately eight per cent against the dollar year-to-date, helping to anchor currency expectations and reduce incentives for speculative foreign exchange hoarding.
With August headline inflation at 15.39 per cent, the nominal SDF rate of 20 per cent still represents a positive real policy rate of about 4.6 percentage points. Market 364-day Treasury bill yields above 16.5 per cent also leave fixed-income investors with positive nominal spreads over inflation, although the actual return for foreign investors depends critically on exchange-rate movements.
The distinction is important because FPIs do not ordinarily place funds directly in the CBN’s SDF. Their allocation decisions are more closely influenced by tradable instruments such as Treasury Bills and Open Market Operations (OMO) bills, whose yields are determined by market liquidity and demand.
For international investors, therefore, the relevant calculation is the dollar-adjusted return after accounting for naira depreciation.
The Africa Business Convention analysis outlined three possible trajectories. Under its base-case scenario, continued disinflation and reserves above $55 billion could support relatively stable portfolio flows, provided naira depreciation remains contained.
Under a moderate FX-stress scenario, weaker energy prices or external geopolitical shocks could push currency depreciation higher, narrowing the return advantage of Nigerian assets and slowing portfolio inflows.
A more severe scenario could emerge if external shocks or excessive liquidity expansion trigger sharp depreciation expectations, potentially turning the FX-adjusted carry negative and encouraging capital outflows.
To minimise that risk, the policy brief recommended that the CBN allow Treasury Bill and OMO yields to remain sufficiently market-clearing rather than mechanically following the lower SDF rate.
It also called for transparent reporting of foreign exchange reserves and intervention operations to strengthen investor confidence over the ability to repatriate funds.
More importantly, the 350-basis-point reduction would need to translate into cheaper commercial credit to agriculture, manufacturing, infrastructure and other productive sectors.
This would allow monetary easing to shift investment from short-term financial assets towards productive private-sector investment, supporting output and employment while reducing the economy’s dependence on foreign portfolio flows.
The report also stressed closer fiscal-monetary coordination, particularly efforts to sustain disinflation, contain deficit monetisation and address structural supply-side constraints.
For policymakers, the challenge is therefore not simply to keep foreign investors in Nigerian assets, but to ensure that lower interest rates produce stronger domestic investment, productivity and growth without undermining confidence in the naira.
