The International Monetary Fund (IMF) has intensified scrutiny of derivative-based sovereign borrowing after raising concerns over Nigeria’s $5 billion credit facility arranged through a total return swap with First Abu Dhabi Bank. The arrangement has sparked alarm among the IMF, rating agencies, and investors over the risks and opacity associated with such financial instruments used by developing countries.
Total return swaps (TRS) are contracts that allow sovereign borrowers to exchange returns on their bonds for cash, effectively creating collateralized loans. Nigeria’s recent deal with First Abu Dhabi Bank, signed earlier this year, enables the country to access funds by pledging naira-denominated bonds as collateral. Under the terms, Nigeria commits $1.33 in bonds for every dollar drawn, with nearly $6.7 billion in bonds backing the credit line. The IMF has indicated it will count the full value of these pledged bonds as part of Nigeria’s official debt, a departure from common practice where such collateralized bonds are often excluded from debt figures.
This shift signals a broader effort by the IMF to enhance transparency in emerging market sovereign borrowing, where derivative transactions like TRS have become increasingly popular. The mechanism has been used previously by countries such as Senegal and Angola to gain access to liquidity when traditional international markets became inaccessible or too costly.
Analysts warn that these swaps carry hidden risks for borrowers. Since the bonds used as collateral remain vulnerable to price fluctuations, governments could face sudden cash demands—known as margin calls—if bond values decline. These margin calls can exacerbate fiscal stress, especially during periods of tightening monetary conditions, and may compel governments to liquidate collateral at depressed prices, worsening their debt positions.
Rating agencies Moody’s and Fitch have also flagged the growing importance of assessing the “procyclical” risks associated with TRS. Both firms noted that large swaps with significant margin call provisions or early termination risks could negatively affect sovereign credit ratings. Disclosure of the full terms of these contracts remains limited, generating concern among investors about the scope and impact of such liabilities. Some loan agreements include clauses that trigger repayment obligations if a country’s credit rating falls, as seen in a €300 million swap between First Abu Dhabi Bank and Senegal.
Nigeria, which recently received credit rating upgrades allowing access to conventional bond markets at comparable interest rates, plans to utilize the TRS facility to replace older, expensive crude-backed loans. The deal reflects a resurgence of international banks in offering financing solutions to developing nations after bond markets temporarily supplanted bank lending in recent years. However, the collateral requirements under these swaps typically mean governments must pledge assets worth more than the funds borrowed, while lenders can reduce their capital requirements through these arrangements.
While officials have remained largely silent on the specifics of Nigeria’s swap agreement, the country’s finance minister, Taiwo Oyedele, previously stated the government is exploring innovative financing tools to optimize its sovereign balance sheet and improve fiscal flexibility.
The IMF’s report on Nigeria also underscored potential constraints on monetary and exchange rate policies arising from these swaps. For instance, interest rate hikes intended to combat inflation could inadvertently depress bond prices, triggering margin calls and legislative pressures.
Investors continue to call for greater transparency around derivative-driven borrowing structures, warning they obscure the true level of sovereign indebtedness and expose countries to liquidity risks during periods of financial stress. As such mechanisms gain prominence, market participants and international institutions alike are grappling with how to accurately assess and manage the risks they entail.