Stagflation Risk Mounts for Banks as Oil Spike Freezes Central Banks

Oil Spike to $104 Unleashes Global Stagflation Fears

The war in Iran has sent a shockwave through energy markets, stoking fears of a return to 1970s-style stagflation. The closure of the Strait of Hormuz, a critical waterway for global oil shipments, caused Brent crude prices to climb 54% in less than a month, rising from $67.13 on February 17 to a current price of $103.86 a barrel. At one point, futures topped $109.

This dramatic increase in energy costs is a dual blow to the global economy. It directly fuels inflation while simultaneously dampening economic growth, as higher costs reduce consumer spending power and increase operational expenses for businesses. The International Monetary Fund (IMF) estimates that for every 10% rise in oil prices, global economic output declines by 0.1% to 0.2%. With about 20 million barrels of oil per day blocked from the strait, the inflationary effects are expected to be significant and widespread.

Central Banks Hold Rates as Economic Growth Falters

Confronted by this stagflationary dilemma, major central banks have opted to hold interest rates steady. The U.S. Federal Reserve maintained its target range of 3.5% to 3.75%, and the Bank of Canada (BoC) held its rate at 2.25%. Policymakers are trapped between their mandates to control inflation and the need to support faltering economic growth. The U.S. economy lost 92,000 jobs in February, pushing the unemployment rate up to 4.4%, while the manufacturing sector has contracted in 23 of the last 25 months.

Bank of Canada Governor Tiff Macklem highlighted the difficult trade-offs facing policymakers.

Raising interest rates to slow inflation could further weaken the economy. Easing interest rates to support growth risks pushing inflation well above target.

This cautious "wait-and-see" approach reflects deep uncertainty about the duration of the conflict and its economic fallout. While the Fed still projects one potential rate cut in 2026, Fed Chair Jerome Powell noted that progress on inflation has been slower than hoped, even before the full impact of the oil shock registers in official data.

Banks Face Squeezed Margins and Rising Credit Risk

The current environment places the banking sector in a vise. Persistently high inflation without corresponding interest rate hikes from central banks compresses banks' net interest margins (NIMs)—the key measure of their lending profitability. At the same time, the slowing economy elevates credit risk across their loan portfolios.

The weakening labor market and contracting manufacturing activity signal a higher probability of loan defaults from both consumers and corporations. This forces banks to increase provisions for bad loans, further eroding their bottom line. The combination of shrinking profitability and rising risk creates a decidedly bearish outlook for bank stocks until the geopolitical and economic uncertainty subsides.