Democrats sweep US Congress, European bank stocks rally together! Fiscal easing and cooling US Treasury yields ignite market sentiment.

Democrats sweep US Congress, weakening market bets on further expansion of US military spending, but boosting European bank stocks' expectations for improved financing conditions and credit prospects. The day's market structure also highlighted the rotation of Western policy expectations, with the pan-European STOXX 600 index rising nearly 1%, led by banking and clean energy sectors, while defense stocks clearly lagged. Capital is being reallocated to bets on different paths and directions of Democratic policy beneficiaries under the backdrop of a Democratic sweep of Congress. Bank stocks led the European market higher. Democrats achieved a landslide victory in the US midterm elections, removing some of the uncertainty that had weighed on stocks in recent weeks, while falling bond yields also provided a boost. The STOXX Europe 600 Banks Index rose as much as 4.5%, on track for its best single-day gain since May. European banking heavyweights HSBC and Santander contributed the most to the index's advance; Lion Finance Group and Raiffeisen Bank International led gainers, surging 5.9% and 6.4% respectively. US bank stocks also rose in premarket trading. Wednesday's rally marked a sharp reversal for European bank stocks, which had fallen significantly ahead of the election. The sector had pulled back from an all-time high set in early September as sharply rising US and European bond yields raised concerns about credit quality and default rates. Still, the sector remains up 11% year-to-date. As shown in the chart above, European bank stocks hovered near oversold, pessimistic levels ahead of the US midterm elections. "Despite strong fundamentals, investors had clearly reduced exposure to bank stocks ahead of the midterms. With uncertainty removed, we are now seeing a strong relief rally," said Ulrich Urban, Head of Multi-Asset Strategy and Research at Berenberg. "This is a 'sell the rumor, buy the fact' move." US Treasury yields fell as midterm election results rolled in. Investors bet that the new political environment would constrain tax cuts and massive federal spending plans championed by the Trump administration. Government bond yields in the UK, France and Italy also declined. "More broadly, if financial conditions become significantly less restrictive and economic growth broadens across more sectors, that is good for the international financial sector," said Geoff Yu, Senior Macro Strategist at BNY Mellon. "When people are reluctant to borrow and credit risk is rising, a steeper Treasury yield curve does not help banks improve profitability." Election pressure released, European bank stocks welcome "buy the fact" rally The core of the sharp rebound in European bank stocks is the combination of clear election results, the release of prior de-risking pressure, and falling bond yields, which together drove a compression in the risk discount on bank stocks. The Democratic sweep of US Congress weakened market bets on further expansion of US military spending, but boosted European bank stocks' optimistic expectations for improved financing conditions and credit prospects. European bank stocks had previously pulled back from an all-time high in early September, with the main pressure coming from surging US and European government bond yields: higher financing costs began to threaten corporate debt-servicing capacity and loan demand, prompting investors to reassess bad-debt and provisioning risks. "Blue Congress" refers to Democrats controlling both the Senate and the House. When midterm voting data showed Democrats controlling both chambers, the market expected Trump's push for new tax cuts and spending plans to face more constraints. Reuters European morning data showed the US 10-year Treasury yield fell about 2.1 basis points to 4.9291%, supporting the rebound in risk assets. The buying logic in bank stocks centered on the possibility that financing pressure could ease and the risk of earnings being eroded by credit losses would decline. Pre-election positioning adjustments amplified the rebound. Berenberg believes bank fundamentals remain strong, but investors had clearly cut risk exposure beforehand, and a relief rally emerged after results were announced. Bloomberg Intelligence also observed capital rotating into European bank stocks that had previously lagged the broader market; in the same trading session, the defense sector came under pressure, indicating the market is reallocating sector returns from policy changes. Why falling yields benefit banks: credit quality matters more than margin expansion Bank profitability cannot be judged solely by whether loan rates are rising. Higher rates can boost returns on some assets, but if borrowers reduce financing, deposit and wholesale funding costs rise, and default losses increase, margin gains may be offset. When market concerns shift from "rates aren't high enough" to "borrowers can't bear high benchmark borrowing costs," falling yields are actually beneficial to bank valuations. If improved financing conditions can drive loan demand, ease debt-servicing pressure, and reduce expected credit losses, banks may sustain profitability through improved business volume and asset quality. This is also the key to BNY Mellon strategist Geoff Yu's view: a steeper yield curve does not automatically mean banks are more profitable; if companies are unwilling to borrow and credit risk rises, the curve advantage is difficult to realize. Investors would rather see economic growth spread across more industries, financing activity recover, and bank profits no longer overly dependent on rates or further steepening of the yield curve. Some banks already have the operating foundation to support valuation recovery. HSBC's third-quarter pre-tax profit rose 10% year-on-year at constant currency and excluding notable items; Santander's Common Equity Tier 1 (CET1) ratio was 12.7% at end-September, above the 9.86% minimum requirement. Earnings growth and capital buffers provide support for banks to absorb potential losses and maintain credit supply. The sustainability of the bank stock rally depends more on whether easing financing pressure can steady loan growth, stable credit costs and shareholder returns, rather than day-to-day yield movements.