Nigeria - Sovereign Treasury & Government Debt Market Digest

0.1 Executive Synthesis

The sovereign treasury and debt market of Nigeria experienced active primary and secondary trading dynamics over the reporting period ending 2026-09-25. Domestic debt operations were governed by the monetary stance established by Central Bank of Kenya (CBK) and the issuance parameters set forth by The National Treasury & Economic Planning.

Primary market demand showed robust appetite, with the weighted average bid-to-cover ratio settling at 1.48x across treasury bills and benchmark bond offerings. Short-term yields reflected liquidity conditions in the interbank market, where the weighted average call rate closed at 12.45% (spread of -30.0 bps to the policy anchor). Meanwhile, the 10-year sovereign benchmark yield was quoted at 17.15%, adjusting the 2Y–10Y slope to 48.0 bps, signaling a Normal / Moderate Upward Sloping posture.

Aggregate outstanding domestic public debt stood at KES 5,420,150 Million (representing 33.8% of GDP), with a portfolio Average Time to Maturity (ATM) of 7.42 years and an Average Time to Refixing (ATR) of 4.15 years, maintaining debt rollover risk within manageable parameters.

0.2 Key Treasury Indicators (KPI Scorecard)

0.3 Tactical Sovereign Market Sentiment

Market sentiment in the sovereign primary space remains supported by sustained domestic institutional liquidity, notably from commercial banking treasuries and statutory pension schemes. Primary auction yields have demonstrated disciplined price-discovery, with allotment ratios reflecting the debt office's reluctance to accommodate aggressive bids above secondary benchmark curve levels.

1.1 Central Bank Policy Corridor & Implementation

The Central Bank of Kenya (CBK) maintained its policy rate at 12.75% (previous period: 13.0%, change of -25.0 bps). The operating framework is framed around a symmetric/asymmetric policy corridor designed to steer wholesale money market rates near the operational target.

1.2 Short-End Money Market Benchmarks & Interbank Trading

Interbank money market transactions traded smoothly within the policy corridor. The weighted average overnight call rate closed at 12.45%, representing a spread of -30.0 bps relative to the policy anchor. Total interbank traded volume reached KES 38,400.00 Million, reflecting active bilateral cash repositioning among tier-1 and tier-2 commercial banks.

Collateralized repo rates hovered near 12.50%, underpinned by sovereign treasury bills as eligible high-quality liquid assets (HQLA).

1.3 Banking System Excess Reserves & Liquidity Absorption

Commercial banking reserves ended the session in a Comfortably Liquid / Moderate Excess Reserves state, with aggregate excess reserves estimated at KES 28,500.00 Million.

Open Market Operations (OMO) were deployed to sterilize structural liquidity surpluses, with KES 45,000.00 Million in short-term central bank liquidity paper absorbed at a weighted average stop yield of 12.70%.

2.1 Benchmark Par & Spot Yield Curve Matrix

The sovereign yield curve for Nigeria serves as the domestic risk-free benchmark across all tenors from 91 days to 30 years. Yields are tracked daily via Central Bank Depository (DhowCSD) & Nairobi Securities Exchange (NSE) and Central Bank primary-secondary feeds.

Figure 2.1: Nigeria Sovereign Benchmark Par Yield Curve across Tenor Spectrum (91D to 25Y).

2.2 Yield Curve Dynamics & Slope Metrics

The term structure exhibited the following characteristics over the review period:

* 2Y vs. 10Y Term Premium: Stood at 48.0 bps (compared to 55.0 bps previously, a shift of -7.0 bps).

* 3M vs. 10Y Term Premium: Recorded at 147.0 bps (a movement of -8.0 bps).

* Yield Curve Shift Classification: Evaluated as Bull Flattening across Medium Tenors. Demand along the intermediate belly (5Y to 10Y tenors) compressed benchmark spreads, as institutional asset managers locked in attractive real returns.

2.3 Curve Estimation & Spread to International Benchmarks

On a cross-market basis, sovereign credit spreads against benchmark US Treasuries stood at 1335.0 bps at the 10-year node, reflecting sovereign country risk premia, inflation differential expectations, and currency hedging considerations.

3.1 Treasury Bill (T-Bill) Auction Review

The Central Bank of Kenya (CBK) conducted weekly Treasury Bill operations on behalf of The National Treasury & Economic Planning. Across the 91-day, 182-day, and 364-day tenors, competitive and non-competitive bidding reflected steady absorption by commercial banks and domestic pension institutions.

Primary demand was particularly concentrated at the short and long ends of the bill curve. Cut-off yields averaged 16.25%, with the sovereign debt office allotting 24,000.00 Million against an aggregate offer of 24,000.00 Million.

Figure 3.1: Primary Treasury Auctions: Target Offer vs. Total Bids Received vs. Allotted Amount (LCY M).

3.2 Treasury Bond (T-Bond) Auction & Reopening Results

Treasury Bond issuances targeted duration extension and benchmark consolidation. Recent auctions focused on re-openings to maintain on-the-run benchmark liquidity.

3.3 Primary Dealer Performance & Bidding Discipline

Designated primary dealers fulfilled underwriting thresholds in compliance with central bank market-making guidelines. Non-competitive retail and small institutional allotments were executed seamlessly without causing auction tail distortions.

4.1 Aggregate Secondary Market Velocity

Trading activity across the secondary sovereign debt window remained liquid, supported by interbank dealing operations and active depository trading on Central Bank Depository (DhowCSD) & Nairobi Securities Exchange (NSE).

4.2 Most Actively Traded Sovereign Papers

Secondary trading volume was heavily anchored in short-to-medium tenor benchmark papers and select tax-efficient issues.

Bid-ask spreads across primary on-the-run benchmark bonds tightened to 12.8 bps, reflecting strong market maker quoting depth and two-way quoting commitment.

4.3 Off-Market Blocks & Repurchase (Repo) Market Turnover

Bilateral repos and negotiated crossing trades accounted for an estimated 32.4% of total exchange-reported debt movements. The interbank repo market functioned smoothly as institutions managed intraday cash requirements using government sovereign securities as high-grade collateral.

5.1 Inflation Adjusted (Real) Yield Curve

Official statistics published by national authorities reported latest Headline Inflation (CPI) at 4.4% YoY, while Core Inflation printed at 3.5% YoY. Against the Central Bank's target corridor of 5.0% +/- 2.5%, domestic real sovereign yields remained firmly in positive territory across all maturity tenors.

Figure 5.1: Nominal Sovereign Benchmark Rates vs. Inflation-Adjusted Real Yields (Headline CPI: 4.4%).

Real returns at the short end (364-day bill) stood at 11.80%, providing substantial inflation compensation. At the 10-year node, the real yield of 12.21% continues to draw capital allocations from domestic retirement schemes and pension funds seeking actuarial asset-liability matching.

5.2 Breakeven Inflation & Market-Implied Expectations

The market-implied 5-year breakeven inflation rate is estimated at 5.15%, signaling that fixed-income participants anticipate inflation to remain anchored within the statutory central bank target over the medium-term horizon.

6.1 Outstanding Domestic Debt Stock & Composition

Total outstanding domestic sovereign debt documented by The National Treasury & Economic Planning reached KES 5,420,150 Million, representing 33.8% of nominal GDP. The debt portfolio is structured across conventional fixed-rate treasury bonds, short-term treasury bills, and dedicated infrastructure instruments.

Figure 6.1: Nigeria Domestic Sovereign Debt Portfolio by Instrument Category.

6.2 Redemption Schedule & Sovereign Refinancing Ladder

The debt office maintains a phased redemption ladder designed to prevent excessive concentration of debt service in any single quarterly cycle.

Figure 6.2: Sovereign Refinancing Ladder across Phased Maturity Windows.

6.3 Portfolio Risk Metrics: Duration, ATM & Refixing

* Average Time to Maturity (ATM): Stood at 7.42 years, in line with the Medium-Term Debt Management Strategy (MTDS) target of 8.0 years.

* Average Time to Refixing (ATR): Stood at 4.15 years, insulating public debt service from immediate interest rate shocks.

* Proportion Maturing Within 1 Year: Represents 14.2% of domestic debt, well below the risk ceiling threshold of 20.0%.

7.1 Fiscal Financing Plan Execution

The national budget framework approved for the current fiscal period mandates an aggregate net domestic borrowing target of KES 597,000 Million.

* Cumulative Domestic Borrowing to Date: KES 184,500 Million

* Borrowing Program Execution Rate: 30.9% of annual target

Issuance operations conducted by The National Treasury & Economic Planning remain tracking on schedule, mitigating recourse to unbudgeted emergency facilities.

7.2 Domestic vs. External Issuance Proportions

In alignment with the national debt strategy, domestic debt accounts for the majority of new financing, minimizing foreign exchange translation exposures while fostering domestic capital deepening. Concessional multilateral financing continues to be prioritized for external project loan disbursements.

7.3 Debt Sustainability & Service Burden

* Debt Service-to-Revenue Ratio: Estimated at 58.4%, representing the ongoing commitment of fiscal receipts toward servicing domestic and external debt obligations.

* Interest Expense-to-GDP: Stood at 5.2%. Fiscal consolidation measures implemented by the government aim to expand the tax-to-GDP envelope to preserve long-term debt sustainability.

8.1 Sovereign Sukuk (Islamic Trust Bonds)

Where authorized under sovereign issuance frameworks, asset-backed Sukuk (such as Ijarah or Murabahah structures) provide non-interest alternative financing. These papers attract dedicated Islamic banking liquidity, pension funds, and ethical asset managers, expanding sovereign investor diversification.

8.2 Sovereign Green, Social & Sustainability Bonds

Sovereign green and sustainability bond frameworks support earmarked climate resilience, renewable energy, and sustainable infrastructure projects. Recent issuances demonstrated a measurable "greenium," pricing inside conventional sovereign curves due to dedicated ESG mandates from multilateral and international investors.

8.3 Infrastructure & Retail Savings Bonds

Infrastructure bonds (IFBs) featuring tax-exempt coupon incentives remain among the most liquid sovereign instruments in the market. Simultaneously, mobile-based retail treasury platforms (e.g. digital CSD portals) empower individual households to participate in government securities bidding with low minimum investment thresholds.

9.1 Sovereign Debt Holdings by Institutional Category

Data compiled from Central Bank Depository (DhowCSD) & Nairobi Securities Exchange (NSE) and the Central Bank registry reflects a diversified holder distribution across institutional segments:

Figure 9.1: Sovereign Debt Holder Distribution Across Financial & Institutional Categories.

9.2 Non-Resident / Foreign Investor Dynamics

Foreign portfolio investors (FPI) held an estimated 6.8% of outstanding domestic marketable government securities (equivalent to KES 368,570 Million). Offshore capital flows remained selective, influenced by global interest rate movements, exchange rate stability, and sovereign yield differentials.

9.3 Retail Investor Participation & Financial Inclusion

Retail investors account for 3.40% of domestic debt. Modernization of the primary issuance infrastructure—enabling direct digital onboarding and mobile wallet subscriptions—has broadened retail access to high-yielding treasury paper.

10.1 Sovereign Eurobond & Foreign Currency Debt Performance

Secondary trading across Nigeria's outstanding international sovereign Eurobonds reflected broader emerging and frontier sovereign credit spreads.

10.2 Sovereign Credit Risk Indicators

* 5-Year Sovereign Credit Default Swap (CDS): Quoted at 485.0 bps, reflecting external perception of sovereign default probability and macro stability.

* Sovereign Rating Scorecard:

* Moody's: B3

* Standard & Poor's: B

* Fitch Ratings: B

10.3 Gross Foreign Exchange Reserves & Import Cover

Official gross foreign exchange reserves reported by Central Bank of Kenya (CBK) stood at USD 7.85 Billion, equivalent to 4.1 months of import cover. This reserve buffer provides critical foreign exchange liquidity to meet scheduled external debt service and absorb terms-of-trade shocks.

11.1 Near-Term Auction Calendar & Financing Pipeline

Over the coming cycle, The National Treasury & Economic Planning and Central Bank of Kenya (CBK) plan to auction KES 40,000.00 Million in treasury bills and reopened benchmark bonds. Expected issuance will emphasize intermediate tenors to sustain duration while maintaining smooth rollover distribution.

11.2 Comprehensive Sovereign Risk Matrix

11.3 Statutory Manifest, Methodology & Official Data Sources

* Data Sources Cited:

1. The National Treasury & Economic Planning: Public Debt Statistical Reports, Borrowing Calendar, MTDS.

2. Central Bank of Kenya (CBK): Monetary Policy Communique, Daily Financial Market Series, Banking Reserves.

3. Central Bank Depository (DhowCSD) & Nairobi Securities Exchange (NSE): Central Securities Depository Trading & Settlement Data, Daily Yield Curve.

* Calculation Conventions:

* Money Market Yields computed on an Actual/365 day count convention.

* T-Bill discount yields converted to equivalent investment yields: $Y_{inv} = \frac{365 \times d}{360 - (d \times t)}$.

* Real yields computed as $(1 + Y_{nom}) / (1 + \pi) - 1$ where $\pi$ is headline YoY inflation.

* Statutory Disclaimers:

* This report is published for quantitative research and institutional advisory purposes only. It is synthesized directly from verified official state debt publications and central bank statistical portals.