How Gabon overtook Senegal as investors’ favourite African debt bet

A widening gap in investor confidence has reshaped Africa’s sovereign debt market, with Gabon emerging as one of the continent’s strongest-performing bond issuers while Senegal faces mounting concerns over its debt sustainability and access to International Monetary Fund (IMF) financing.

Gabon’s dollar-denominated bonds have returned 19.5 percent so far this year, according to Bloomberg. This makes them among the best-performing sovereign debt instruments in emerging markets. The rally has been fuelled by growing optimism that the Central African nation can secure an IMF programme without undergoing a debt restructuring.

The turnaround marks a contrast with Senegal, whose bond prices have come under pressure as investors grow increasingly concerned over rising debt levels and stalled negotiations to revive an IMF lending programme suspended since 2024.

“Gabon’s outperformance reflects growing investor confidence that the country is moving toward an IMF programme without the restructuring concerns that have weighed on Senegal,” said Yvette Babb, portfolio manager at William Blair BV.

The diverging investor sentiment is reflected in the premium buyers demand to hold the two countries’ debt over US Treasuries.

According to JPMorgan Chase & Co.’s emerging market bond index, Gabon’s sovereign spread has narrowed to about 608 basis points, signalling improving confidence, while Senegal’s has widened to 1,541 basis points, reflecting growing concerns over its credit outlook. At the beginning of the year, both countries traded at roughly 1,000 basis points over Treasuries, a level widely regarded as signalling debt distress.

The divergence accelerated last week after Gabon announced that an IMF-supported audit had found the country’s debt burden to be lower than previously estimated, easing fears that a restructuring would be required before the country could secure fresh IMF financing.

“The audit is making people think that the country could clinch a deal with the IMF without a debt restructuring,” said Sebastian Vargas, global emerging markets sovereign strategist at Seaport Global Holdings to Bloomberg.

The findings stand in stark contrast to Senegal, where a government audit uncovered about $7 billion in previously undisclosed borrowing, complicating efforts to restore investor confidence. Although Senegal has continued servicing its debt by raising funds in the domestic market, uncertainty surrounding the IMF programme has heightened fears over the country’s fiscal position.

Gabon has moved quickly to capitalise on improving market sentiment.

The country recently raised $920 million through a privately placed bond due in 2033, paying a 12.65 percent yield—the highest for any emerging-market sovereign this year and second only to the 13.7 percent paid by the Republic of Congo in late 2025.

Since the issuance, the bond’s yield has fallen to around 11.5 percent, highlighting stronger investor demand, although it remains above the 10.7 percent average yield for African sovereign issuers rated between CCC+ and CCC-, including Mozambique and Zambia.

Analysts say the successful fundraising provides Gabon with additional liquidity to meet near-term debt obligations while improving the outlook for its existing international bonds.

“The healthier fiscal picture should also smooth the path toward an IMF deal,” said Leo Morawiecki, emerging markets analyst at Aberdeen Investments. While Gabon’s public finances remain under pressure, he said the improving debt profile and efforts to clear arrears are encouraging signs, provided the final audit confirms the preliminary findings.

For investors, the contrasting fortunes of Gabon and Senegal underscore how debt transparency and IMF engagement are increasingly shaping confidence in African sovereign borrowers. While both countries began the year facing similar concerns over debt distress, markets are now rewarding Gabon’s improving fiscal outlook while penalising Senegal’s unresolved debt uncertainties.

Recent profit-taking has trimmed gains in Gabon’s 2029 and 2031 dollar bonds, but analysts say the broader recovery story remains intact if the country secures an IMF programme and the final audit validates its lower-than-expected debt burden.