Global financial markets faced a complex web of surging growth, shifting central bank dynamics, and localized inflation pressures this week. In the United States, economic expansion accelerated sharply in the third quarter, driven heavily by artificial intelligence infrastructure spending and resilient consumer habits. Meanwhile, across the Atlantic, the European Central Bank opted to leave its benchmark interest rates unchanged, striking a cautious note as policymakers weighed tightening financing conditions against rising energy costs. At the same time, regional economic data from Europe highlighted persistent cross-currents, with Belgian headline inflation climbing to its highest rate in over a year.
Markets
The United States economy is experiencing a robust boom. Economic growth accelerated notably from an annualized rate of 2.2% in the second quarter to 3.4% in the third quarter, beating the 3.2% consensus estimate and marking the fastest pace of expansion seen in a year.
A closer look at the components driving this growth reveals fascinating structural shifts. Net exports weighed heavily on the headline figure, dragging growth down by 3.32 percentage points. This drag was primarily the result of surging imports—which dropped the net figure by 2.64 percentage points amid a dramatic 26.4% quarter-over-quarter increase in incoming goods. Economists note that these imports were heavily concentrated in the specialized equipment and materials needed for the ongoing artificial intelligence buildout.
Countering the net export drag, robust inventory building added 1.6 percentage points to the headline growth number. More impressively, fixed investment jumped by a remarkable 9.4%. Within that category, investments in artificial intelligence-related equipment soared by 20.9%, delivering the largest single growth contribution—some 1.16 percentage points—ever recorded in this category, barring the anomalous rebound period of the pandemic.
At the same time, consumer spending remained a vital pillar of the expansion. Personal consumption rose at a solid 3.8% rate, matching the pace seen in the second quarter and accounting for 2.5 percentage points of total growth. Government consumption also added momentum, rising by 5.3% to register its largest increase in three years.
This strong economic activity continues to be accompanied by exceptionally low jobless claims—noted by market observers as being at generational lows—alongside mounting inflationary pressures. The broader Personal Consumption Expenditures (PCE) price index rose by 0.5% month-over-month, pushing the annualized headline rate up to 3.6% from 3.4%. Core PCE, which strips out volatile food and energy components, added 0.3% to bring its yearly increase to 3.1%.
While both headline and core inflation figures matched consensus expectations, analysts pointed out that these readings only met forecasts thanks to rounding conventions. Services PCE picked up to an annualized rate of 2.4%, marking its quickest pace since December 2024. The story for the so-called supercore PCE measure—which looks at services excluding energy and housing—echoed this upward momentum.
Market participants looking at the data suggested that if the Federal Reserve had possessed these robust figures prior to its policy meeting earlier in the week, the ultimate policy outcome might have looked quite different. US Treasury yields slipped by a few basis points in the immediate wake of the data release, likely because the PCE deflators avoided any severe upside surprises. However, losses deepened during early US dealing hours as an Alphabet-led technology sector sell-off sparked traditional safe-haven flows. Net daily yield changes varied between -3.7 and 5.5 basis points, reflecting a bull-steepening environment.
Meanwhile, in Europe, the European Central Bank kept its key rates unchanged at 2.5%, meeting widespread expectations. However, subtle alterations to the accompanying monetary policy statement triggered some bull-flattening in European debt markets and initial euro weakness ahead of the press conference held by outgoing ECB President Christine Lagarde.
The policy statement explicitly mentioned that rising energy prices are posing renewed upside inflation risks. At the same time, it noted that underlying inflation had remained broadly stable thus far and that wage growth was not yet showing a material response to price pressures. Crucially, the central bank also took official notice of the fact that financing conditions have tightened significantly since its previous meeting. Policymakers assessed that this tightening is likely to weigh on both future economic growth and inflation, thereby reducing the immediate need for aggressive ECB intervention. Consequently, overall growth risks were judged to be tilted to the downside.
During her press conference, President Lagarde elaborated on these dynamics, explaining that while there are direct and increasing indirect effects from higher energy costs, the bank is still not seeing second-round effects materializing through wages. She pointed to two key changes in the macroeconomic landscape since September: a significant rise in energy prices—including petroleum and natural gas—and a 35-basis-point increase in the cost of long-term financing since the cut-off date for the September economic forecasts.
Combined with prevailing market uncertainty, Lagarde noted that there was absolute unanimity among policymakers for today’s policy hold, even though a rate hike had been actively discussed. When pressed on why the central bank opted to wait rather than act immediately—mirroring questions posed to the Federal Reserve earlier in the week—Lagarde highlighted the additional economic data that will become available by the time of the December meeting. She emphasized that a measured, data-dependent approach remains the correct path forward and reiterated that the overall direction of travel for monetary policy is clear regardless of short-term pauses.
Addressing questions regarding French sovereign debt spreads, Lagarde responded with carefully prepared, general comments, reminding markets of the availability of the Transmission Protection Instrument (TPI) should market conditions ever require its deployment.
Following these remarks, the EUR/USD exchange rate recovered from its intraday lows, climbing from just above 1.11 back to 1.115 during the course of the press conference, though the broader technical picture for the shared currency remains weak. German sovereign debt yields pared some of their earlier 6-to-7-basis-point losses to trade about 4 basis points lower at the front end of the curve, while the long end finished roughly 2 basis points higher.
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Beyond central bank boardrooms and macroeconomic aggregates, regional data releases offered further insight into the patchwork nature of the current economic environment. In Belgium, headline inflation accelerated sharply, rising by 0.91% month-over-month in October. This monthly jump lifted the year-over-year inflation rate to 5.26%, up significantly from 4.69% in September, marking the fastest pace of price growth recorded in the country since April 2023.
A detailed breakdown of the Belgian index showed that the most significant price increases during October were concentrated in natural gas, electricity, private rents, domestic heating oil, higher education enrollment fees, clothing, holiday villages, camping sites, and plane tickets. Conversely, certain categories exerted a dampening effect on the broader index, with package holidays and hotel rooms showing notable price declines over the month.
Underneath the noisy headline figures, however, underlying trends revealed some signs of moderation. Belgian core inflation slowed from 3.0% year-over-year down to 2.8%. Services inflation cooled from 5.25% to 4.73%, while rent inflation ticked slightly higher, moving from 2.94% to 3.07%. Price growth for food products, including alcoholic beverages, remained negative at -0.18% for the month, compared to -0.28% in the previous month. By stark contrast, energy inflation surged dramatically, leaping from 24.37% to 33.22% on an annual basis, underscoring the acute vulnerability of European consumer prices to shifting global energy markets.
In a separate economic release, the National Bank of Belgium estimated the country’s third-quarter gross domestic product growth at 0.3% on a quarter-over-quarter basis, translating to 0.7% growth compared to the same period a year ago. A supply-side breakdown of the quarterly national accounts showed positive economic contributions across all major sectors, with industry expanding by 0.1%, construction growing by 0.2%, and the services sector leading the way with a 0.4% quarterly increase.
