Ethiopia’s interbank money market is expanding at a pace that suggests a system flush with liquidity. But the behavior of interest rates tells a more complicated story one where cash is abundant, yet not evenly distributed across the banking sector.
Weekly ESX market data from early 2026 shows a sharp escalation in activity, particularly in overnight lending. Volumes rose from ETB 13.7 billion in the first week of January to ETB 118.8 billion by the week of March 23 nearly a nine-fold increase in less than three months. The number of trades followed a similar trajectory, climbing from 27 to 139 over the same period.
Source: ESX, 2026
Such a surge would typically push borrowing costs lower. Instead, Ethiopia’s interbank rates moved in the opposite direction and then stopped moving altogether.
Overnight rates, which opened the year at 14.08%, fell briefly to 12.00% in mid-January before climbing steadily to 17.09% by the end of the month. By February, they had settled at 18.00%, where they remained effectively unchanged through most of March. Seven-day instruments followed a similar path, converging to the same 18.00% level and holding there with almost no variation.
Source: ESX, 2026
The combination is striking: rapidly rising volumes alongside persistently high, and unusually stable, interest rates.
This divergence points to a deeper structural dynamic. Liquidity in the Ethiopian banking system is not scarce, but it is not evenly distributed either.
A key driver is the National Bank of Ethiopia’s credit growth cap, which has constrained banks’ ability to expand lending. The result is a buildup of excess cash on some balance sheets, much of which is being redirected into the interbank market. That helps explain the sharp increase in transaction volumes.
But if liquidity were uniformly abundant, rates would have declined materially. The fact that they did not and instead held at 18.00% for weeks suggests that a segment of banks continues to face funding pressure, borrowing consistently at elevated rates even as others lend.
In effect, the market is clearing at a level that reflects segmentation rather than equilibrium. The behavior of tenors reinforces this view. Overnight transactions dominate activity, consistently accounting for the majority of traded volume. In the week of March 23, overnight trades reached ETB 118.8 billion, compared to just ETB 26.45 billion for seven-day instruments. The preference for very short-term borrowing points to caution within the system banks are willing to transact, but reluctant to lock in funding beyond immediate needs.
That caution becomes more visible toward the end of March, when the pattern briefly breaks. Overnight rates drop sharply from 18.00% to 14.02% in the week of March 30, even as volumes remain elevated. The move appears to reflect a temporary liquidity injection or short-term imbalance, rather than a structural shift. By early April, rates had already rebounded to 16.18%.
Taken together, the data suggests a system operating under strong policy influence. Prices are not freely adjusting to liquidity conditions in the way they would in a fully liberalized market. Instead, they appear anchored whether by implicit ceilings, market convention, or the boundaries created by regulation.
This matters beyond the interbank market itself. These short-term funding dynamics feed directly into demand for government securities, shaping Treasury bill auctions and influencing the broader cost of capital in the economy.
What emerges is not a simple story of excess liquidity, but a more nuanced one: a banking system where cash is plentiful in aggregate, uneven in distribution, and intermediated through a market that is still evolving toward full price discovery.
In that sense, Ethiopia’s interbank market is no longer just a technical funding mechanism. It is becoming one of the clearest real-time indicators of how monetary policy, bank behavior, and market structure are interacting and where the financial system may be heading next.