The relationship is mechanical and unforgiving: when interest rates fall, existing bond prices rise. When rates rise, prices fall. In Ghana, that principle is playing out in real time—and it explains why the bond market is behaving the way it is.
The Core Principle
A bond is a contract that promises a fixed stream of payments. When a bond is issued, its coupon rate is set to match prevailing market conditions. Once issued, that coupon is locked in.
If market interest rates subsequently fall, the bond’s fixed coupon becomes more attractive than what new bonds are offering. Investors will pay a premium to own it. The bond’s price rises.
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If market interest rates rise, the bond’s fixed coupon becomes less attractive. Investors will only buy it at a discount. The bond’s price falls.
This inverse relationship is the foundational mechanic of fixed-income investing. It applies everywhere, including Ghana.
The Ghanaian Experience: A Live Case Study
The principle is not abstract in Ghana. It is unfolding in the market right now.
The Bank of Ghana has cut its policy rate aggressively, from 28% in June 2025 to 14% by March 2026—a 14-percentage-point reduction . That easing cycle has pulled short-term Treasury bill yields down sharply. The 91-day bill fell from over 10.3% a year ago to about 4.64% as of early October 2026 .
When the risk-free rate falls that far, existing bonds with higher coupons become more valuable. Their prices rise, and their yields fall to align with the new market reality.
The data confirms this. A 9.10% coupon bond maturing in February 2032 was trading at a price of 80.88 in early October 2026, with a yield of 14.31% . The discount to face value reflects the market’s assessment of risk and the fact that the coupon is below what investors can earn elsewhere. But as rates have fallen on the short end, the relative attractiveness of these longer-dated instruments has increased.
The Yield Curve: Why Long Bonds Move More
The relationship between interest rates and bond prices is not linear. It depends on the bond’s duration—a measure of how long it takes to receive the bond’s cash flows.
The longer the duration, the more sensitive the bond’s price is to interest rate changes.
In Ghana, this is visible in the yield curve. Short-term Treasury bill yields have collapsed to single digits, while longer-dated DDEP bonds still offer double-digit yields. The February 2029 bond yields about 13.86%, the February 2030 about 14.20%, and the February 2037 about 14.93% .
That steepness reflects a market premium for duration. Investors are demanding higher yields to lock up their money for longer in a sovereign that restructured its debt in 2022. If short-term rates fall further, long-dated bond prices will rise more than short-dated ones—and the inverse is also true. A rise in long-term rates would hit long bonds hardest.
The Eurobond market illustrates this sensitivity. Between September 9 and 11, 2026, the indicative price of Ghana’s 2037 Eurobond fell 1.2%, while the 2029 and 2030 bonds fell less than 0.5%. The driver was a rise in US Treasury yields, which pulled global bond prices down . The same duration effect applies domestically.
What Drives Rate Changes in Ghana
Interest rates in Ghana respond to several forces that investors must watch.
Inflation is the primary driver. When inflation falls, the central bank has room to cut rates. Ghana’s inflation dropped from over 23% in early 2025 to around 5.2% by September 2026, enabling the easing cycle that has pushed bill yields down . If inflation rises again, the central bank may tighten, and bond prices would fall.
Monetary policy sets the floor. The Bank of Ghana’s policy rate has been held at 14% since March 2026, with all seven MPC members voting to maintain it in the most recent meeting . The policy rate anchors short-term market rates. Bill yields have fallen below the policy rate—a divergence that former Finance Minister Dr. Mohammed Amin Adam has called a sign of “financial repression” .
Fiscal policy and government borrowing shape supply. The government’s return to medium- and long-term issuance in 2026 is rebuilding the yield curve after a three-year pause. A seven-year bond cleared at a 12.5% coupon rate earlier in 2026, and a four-year bond issued in September was expected to clear between 12.5% and 13.5% .
Liquidity in the banking system influences demand. When banks and institutional investors have cash to deploy, they bid for government securities, pushing prices up and yields down. The aggressive demand seen in T-bill auctions—where bids exceeded targets by over 50%—demonstrates the weight of liquidity in the market .
The Institutional Response
The rate movements have triggered a significant portfolio realignment among Ghana’s institutional investors.
Pension funds, insurance companies, and commercial banks are moving out of short-term bills and into longer-dated bonds. The 91-day bill yield of 4.64% is below inflation of 5.2%, meaning short-term bill holders are earning a negative real return .
The strongest appetite has shifted toward restructured DDEP bonds, which offer yields from 13.86% for February 2029 maturities to 14.93% for February 2037 bonds . DDEP bonds now account for 50 to 65 percent of daily market turnover on the Ghana Fixed Income Market, with total trading volume reaching GH¢337.79 billion in the first nine months of 2026—an 85.6% increase over the same period in 2025 .
This is the price mechanism at work. As short-term rates fall, investors reach for duration to capture higher yields. That demand pushes long bond prices up and yields down—but the process is uneven, and the steepness of the curve reflects the risks investors still perceive in Ghana’s long-term credit.
What This Means for Investors
For anyone holding or considering Ghanaian bonds, the implications are clear.
Falling rates are good for existing bondholders. If you already own a bond with a fixed coupon, its market value rises as rates fall. The capital appreciation is real, though it only matters if you sell before maturity.
Rising rates hurt existing bondholders. If you need to sell before maturity, you will do so at a discount. The longer the bond’s duration, the larger the loss.
New buyers face lower yields. The era of 20%-plus returns on short-term bills has ended. The 364-day bill now yields about 9.80%, and the 91-day bill about 4.64% . For positive real returns, investors must either extend duration into bonds or accept that cash is losing purchasing power.
Duration is a choice, not a default. The steep yield curve offers a premium for locking up money for longer. But that premium comes with price sensitivity. A 1% rise in long-term rates would knock more off the price of a 2037 bond than a 2029 one.
Quick Facts
| Topic | Details |
|---|---|
| Policy Rate (Oct 2026) | 14% |
| 91-Day Bill Yield | 4.64% |
| 364-Day Bill Yield | 9.80% |
| Inflation (Sept 2026) | 5.2% |
| 2029 DDEP Bond Yield | ~13.86% |
| 2037 DDEP Bond Yield | ~14.93% |
| DDEP Share of GFIM Turnover | 50–65% |
| GFIM Trading Volume (9M 2026) | GH¢337.79 billion |
Frequently Asked Questions
1. Why do bond prices fall when interest rates rise?
When new bonds offer higher coupons, existing bonds with lower coupons become less attractive. Investors will only buy them at a discount, pushing the price down .
2. Why do bond prices rise when interest rates fall?
When new bonds offer lower coupons, existing bonds with higher coupons become more attractive. Investors will pay a premium to own them, pushing the price up.
3. Which bonds are most sensitive to interest rate changes?
Longer-dated bonds are more sensitive because their cash flows are spread over more years. A 1% rate change moves a 2037 bond more than a 2029 bond .
4. How have interest rates moved in Ghana in 2026?
The Bank of Ghana cut its policy rate from 28% in June 2025 to 14% by March 2026. Short-term Treasury bill yields have fallen sharply, with the 91-day bill at about 4.64% .
5. What is the current relationship between T-bill yields and inflation?
The 91-day bill yields about 4.64%, below inflation of 5.2%. This means short-term bill holders face a negative real return .
6. Why are institutional investors buying DDEP bonds?
DDEP bonds offer significantly higher yields—13.86% to 14.93%—compared to short-term bills. With T-bill yields below inflation, institutions are shifting to longer-dated bonds for positive real returns .
7. What is duration risk?
Duration risk is the sensitivity of a bond’s price to interest rate changes. The longer the duration, the more the price moves when rates change.
8. How does the Bank of Ghana’s policy rate affect bond prices?
The policy rate anchors short-term market rates. When the central bank cuts rates, market rates fall, and existing bond prices rise. When it raises rates, the opposite happens
Source: Accra Street Journal
Last Updated on October 16, 2026 by Samuel Kwame Boadu
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Samuel Kwame Boadu is a Ghanaian media entrepreneur and storyteller with a passion for amplifying urban voices and uncovering everyday truths. He is the Editor-in-Chief and Founder of Accra Street Journal, a dynamic digital platform dedicated to capturing the pulse of Ghana’s capital—its people, culture, challenges, business, sports and innovations.
