Yardeni Research | Bond Vigilantes Are Mobilizing Globally

💡The Middle East war has significantly increased global yield curves from their short to long ends, as fixed-income markets reprice due to a rapidly deteriorating inflation outlook caused by the closure of the Strait of Hormuz. This unprecedented oil-supply shock has crushed former expectations for subdued inflation and dovish central bank actions, with the Bond Vigilantes repricing yield curves worldwide.

💡Two-year government yields have risen dramatically post-war because pre-war expectations of central bank rate cuts were crushed by the inflationary consequences of the war and replaced by expectations of rate hikes. These yields serve as strong leading indicators of the official monetary policy rates, reflecting investor focus on inflation and larger government deficits to fund defense spending rather than recessionary impacts.

💡Europe is more vulnerable to the oil-price shock than the US because the US is a net exporter of oil and gas, while Europe heavily relies on energy imports, particularly from the Middle East for oil and LNG. This makes the oil shock both an inflation problem and a physical supply crisis for Europe, potentially leading to energy rationing, industrial shutdowns, and a slowdown in consumer spending.

💡The divergent central bank mandates of the Fed and ECB explain differences in their expected responses. The Fed operates under a dual mandate of price stability and maximum employment, offering greater latitude to balance risks, whereas the ECB and BOE have a single mandate primarily focused on price stability. This makes investors more certain that an inflationary shock in Europe will elicit a hawkish response, as reflected in bond markets.

💡European governments have limited fiscal policy adjustment room because debt-to-GDP ratios across the Eurozone remain elevated, with even Germany recently loosening its constitutional debt brake. A surge in government borrowing to cushion the economic blow from the oil shock would put direct upward pressure on long-end yields, exacerbating existing fiscal constraints.

💡Safe-haven demand structurally brakes how far US long-end yields can rise relative to the rest of the world, as capital flows towards US Treasuries during geopolitical stress. Conversely, European sovereign bonds may lack this appeal; investor concerns about Europe's energy exposure, stagflationary risks, and limited fiscal space could reduce allocations to European bond duration, causing them to bear the full weight of repricing without offset.

💡The front end of the US yield curve is considered oversold because the hawkish repricing has pushed the 2-year Treasury yield sharply above the 3.50%–3.75% federal funds rate target. Analysts expect no Fed rate cuts or hikes for the remainder of the year, citing the US economy's vulnerability, mildly restrictive policy, ongoing disinflationary forces, and a Fed preference for caution over hikes in a stagflationary environment.

💡The three stages of a negative oil-supply shock are: Stage 1, a bearish inflationary yield-curve flattening where short-end yields rise faster due to hawkish Fed expectations; Stage 2, a bullish growth-concern yield-curve flattening where long-end yields fall or rise slower due to demand destruction fears; and Stage 3, a bullish economic slowdown steepening, where short-end yields fall faster as the Fed adopts a dovish stance amid slowing growth and lower inflation.

💡Stage 1 of an oil-supply shock for the US economy is defined by rising energy prices exerting upward pressure on inflation, making the Fed more hawkish. The oil price has not remained elevated long enough to cause meaningful demand destruction, and its persistence is unclear. Macroeconomic data show rising inflation but no visible negative growth impact, reinforcing the Fed's on-hold stance and causing a bear-flattening of the yield curve, with oil prices between $100-$125 per barrel. The US economy is currently in Stage 1 of a negative oil-supply shock, characterized by a bear-flattening of the yield curve due to rising energy prices and expectations of a more hawkish Fed. The trajectory from this stage will depend directly on the ongoing course and developments of the war in the Middle East.

💡The US economy would enter Stage 2 of an oil shock if oil prices range between $125-$150 per barrel, where inflation fears remain elevated, but intensifying growth concerns would bull-flatten the yield curve. Stage 3 would be entered at oil prices above $150 per barrel, at which point demand destruction would be so strong that the Fed would focus more on negative, disinflationary growth consequences, leading to a bull-steepening of the yield curve.