Shifts in the Senate and House ripple across US stock sectors! Healthcare unlikely to see broad gains; clean energy competes for policy dividends; AI infrastructure faces delivery and cost tests.

Title context: Shifts in the Senate and House ripple across US stock sectors! Healthcare unlikely to see broad gains; clean energy competes for policy dividends; AI infrastructure faces delivery and cost tests. Text: US midterm election dynamics are becoming an important catalyst for the relative performance of various stock market industries/sectors against the broad market benchmark. If Democrats achieve strong election results, Clean Energy Fuels Corp. and the housing sector may gain support from policy expectations, while AI, data center, and defense companies may face stricter oversight. Under expectations of a Democratic sweep of both the Senate and House (a "blue Congress"), divergence within the US stock market's healthcare sector is particularly prominent. Increased healthcare spending may support some healthcare-related businesses, but insurance plan reviews, drug pricing, and cost regulation may also compress the profit margins of relevant companies. The financial sector mainly faces the possibility that the deregulatory process may slow or even that financial regulation will be comprehensively tightened under Democratic leadership, while the crypto asset sector is more directly affected by legislative progress and corporate investigations. This policy contest is taking place against a backdrop of already pronounced market divergence: the S&P 500 healthcare sector has risen more than 19% year-to-date, hitting a record high, while the Philadelphia Housing Index has fallen nearly 5% this year. The former benefits from defensive capital allocation, while the latter remains under pressure from interest rates and mortgage costs. Therefore, policy benefits brought by the election need to enter corporate valuations through subsidy continuation, improved financing, demand growth, or margin changes. On Monday, a series of media reports noted that investors on prediction platform Polymarket were betting real money on probabilities of about 72% for a Democratic sweep of both chambers and about 23% for Republicans holding the Senate while Democrats win the House, meaning the market is more focused on the gap between actual results and existing expectations, and on how far policies can advance after victory. As US midterms approach, industries prepare for major policy shifts As US midterm elections approach, the US business community is preparing for possible changes in Washington's power structure. Analysts and strategists said that if Democrats perform strongly, Clean Energy Fuels Corp., housing, and healthcare stocks could benefit, while companies corresponding to AI, data center, and defense stocks may face stricter scrutiny from lawmakers. According to Polymarket, the world's largest prediction market, the probability of Democrats sweeping both chambers of Congress is 72%, and the probability of Republicans holding the Senate while Democrats win the House is 23%. The probability of Republicans holding both the Senate and the House is only 6%. Meanwhile, a Reuters/Ipsos poll showed that President Donald Trump's approval rating fell to the lowest level of his political career as voters worried about the cost of living and the war with Iran. Even if the two chambers of Congress are controlled by different parties, Democrats would still gain greater control over investigations and appropriations, but they would still have to overcome a potential veto by Trump. As of pre-market trading in the US on November 2 Beijing time, real-money bets by investors on prediction market Polymarket showed implied probabilities of about 95% and 73% for Democrats winning control of the House and Senate, respectively; in the combined chamber market, about 72% for Democrats controlling both chambers and about 23% for Republicans holding the Senate while Democrats win the House. These quotes indicate that a Democratic recapture of the House is already a highly concentrated market expectation, while the Senate outcome still has more room for surprise. The market impact of this US midterm election is concentrated on three questions: how far the election results deviate from existing expectations, whether AI data centers can be delivered on schedule, and whether fiscal policy further pushes up financing costs. The same election outcome may simultaneously improve the policy environment for AI companies while increasing long-term US Treasury supply pressure, so stocks, bonds, and the dollar may not react in the same direction. US midterm elections typically do not trigger violent financial market volatility. However, the results of the November 3 election may deepen investor concerns about AI spending and debt ceiling negotiations; if Democrats tighten corporate scrutiny, the election results may also affect the US business community. A "blue Congress" refers to Democrats controlling both the Senate and the House. Citigroup strategists' "midterm election" strategy framework released on October 30 emphasized precisely this expectation gapif Republicans unexpectedly hold the Senate, the market may reduce concerns about strengthened regulation and future corporate tax increases, providing a rebound catalyst for financial stocks and some core AI computing theme and semiconductor assets; if Democrats win 53 or more seats, it may strengthen investors' judgment that they will continue to control the Senate in 2028 and further seek White House dominance, prompting the market to adjust in advance expectations for future after-tax earnings growth of technology stocks. Investors are closely watching the following industries: First, potential beneficiaries of a "blue wave": Clean Energy Fuels Corp. Analysts said strong Democratic performance could strengthen market expectations that the federal government will continue to support the development of Clean Energy Fuels Corp., benefiting companies such as CECEP Solar Energy manufacturer First CECEP Solar Energy (FSLR.US), residential CECEP Solar Energy installer Sunrun (RUN.US), core inverter manufacturer Enphase Energy (ENPH.US), and clean power developer NextEra Energy (NEE.US). The Democratic-controlled Congress passed the Inflation Reduction Act in 2022, investing hundreds of billions of dollars in climate and energy security measures, including expanding tax credits for renewable energy, nuclear power, and electric vehicles. UBS Group AG believes that under a divided government, there is still room for both parties to pass legislation to accelerate permitting of energy and infrastructure projects, and expects nuclear power to receive support from both sides. Democrats plan to review the Trump administration's moves to relax emissions rules and may use the Congressional Review Act to overturn rules that make gasoline-powered trucks and sport utility vehicles easier to sell. Automakers Ford (F.US), General Motors Company (GM.US), and Stellantis (STLA.US), which have scaled back electric vehicle plans and lobbied to relax regulatory rules, may face pressure. Homebuilders UBS Group AG said the Trump administration will continue to implement the 21st Century ROAD to Housing Act passed by Congress in late June to increase the supply of affordable single-family homes. UBS Group AG said that if Democrats win control of both chambers, they may increase measures to improve housing affordability, including restricting large institutional landlords, but such measures would still face a Trump veto. As prospects of higher interest rates and mortgage rates pressure the industry, the Philadelphia Housing Index (.HGX) has fallen nearly 5% this year. Subsectors at risk under a "blue wave": AI and data centers Analysts expect that a Democratic majority will bring stricter scrutiny of AI, potentially pressuring large AI data center-related key storage and memory technology companies whose shares have risen this year, such as Micron Technology, Inc. (MU.US), SanDisk (SNDK.US), and Seagate (STX.US). A slowdown in AI and data center spending could also drag on semiconductor equipment manufacturers (ASML Holding NV ADR, Lam Research, KLA, Applied Materials, and other semiconductor equipment leaders), power supply leaders, and key AI infrastructure hardware companies that dominate the AI data center construction process. With a Democratic majority, there is a greater likelihood of using subpoena power to require technology executives to testify under oath or submit records related to harmful behavior by AI agents. In addition, voters in at least 10 states may vote on ballot measures that could impose new restrictions, permitting requirements, or moratoriums on data center development. However, France's Industrial Bank said the AI trade is likely to continue because Democrats are unlikely to win a majority large enough to override a Trump veto, and key federal agencies remain under a Republican administration. Certain healthcare subsectors If Democrats sweep both chambers, the healthcare industry will face a mixed outlook. Stricter scrutiny of Medicaid and Medicare Advantage could pressure insurers, although TD Cowen believes the risk of major industry changes and broad structural reform is limited. As investors turned to defensive sectors amid market volatility, the S&P 500 healthcare sector (.SPXHC) has risen more than 19% this year to a record high, second only to energy stocks. Democratic control of the House would increase the likelihood of passing tax increases to fund fiscal plans that include more healthcare spending. Magdalena Ocampo, market strategist at Principal Asset Management, said: "A Democratic sweep could provide stronger momentum for measures targeting healthcare costs, consumer fees, prescription drug pricing, and areas seen as exacerbating affordability problems." Defense and military Trump called in January for raising the military budget to $1.5 trillion, above the already approved $901 billion, after which defense stocks rose but have since given back most of those gains. A related budget vote is unlikely before 2027. Democratic control of the House could bring military spending back under scrutiny. Analysts noted that Congress has not yet appropriated funds for the billions of dollars in contracts signed by major defense contractors to replenish inventories. However, as the Iran conflict shows no sign of ending, major US defense industrial companies such as RTXTHUNDEROBOT (RTX.US) and Northrop Grumman (NOC.US) continue to see strong weapons demand, pushing their backlogs to record highs. Financials Morgan Stanley analysts said in a recent research note that increased oversight after a Democratic victory could slow the pace of deregulation but is unlikely to derail the process. The last large-scale overhaul of bank regulation by a Democratic-controlled Congress was through the 2010 Dodd-Frank Act, which tightened capital rules, established a consumer protection regulator, and imposed new trading restrictions. Stronger Republican control would help improve regulatory clarity and policy continuity. Barclays analysts said maintaining a merger-friendly environment and sustaining capital markets activity are important DRIVE for large bank earnings. Quarterly results released earlier this month by Wall Street's largest financial giants such as JPMorgan (JPM.US), Citigroup (C.US), Goldman Sachs Group, Inc. (GS.US), and Wells Fargo & Company (WFC.US) showed that the M&A and trading boom that drove record first-half earnings may be slowing. Cryptocurrency Analysts unanimously said the election is unlikely to have a major impact on cryptocurrency prices, but will likely affect the pace at which crypto legislation advances in Congress. The Senate failed to advance the Clarity Act in September due to Democratic opposition. Analysts said that if Democrats control the Senate, it will be more difficult for the crypto bill to regain momentum next year. Reuters previously reported, citing people familiar with the matter, that congressional Democrats are preparing to investigate cryptocurrency businesses tied to Trump and his family, believing the related transactions pose potential conflicts of interest. Lawyers told Reuters this could bring negative news and legal risks to some listed companies in the cryptocurrency and blockchain industry. From AI infrastructure to energy and defense: how elections rewrite costs, orders, and earnings expectations? For the AI supply chain, tighter oversight may affect earnings expectations through two paths: first, investigations into agent behavior, model safety, and corporate responsibility raise compliance requirements; second, local permitting, grid construction, and community coordination change data center commissioning timelines and costs. The latter affects facility acceptance, chip deployment, and customer billing, and then transmits to order fulfillment for storage, semiconductor equipment, power, and thermal management suppliers. Morgan Stanley's public research in October summarized this trend as "conditional buildout expansion": AI investment continues to advance, but developers may need to bear more grid and energy costs and accept new tax and utility arrangements. The bank still forecasts hyperscaler capital expenditure of $1.5 trillion in 2027, indicating that investment scale expansion and stricter construction conditions can occur simultaneously. Clean Energy Fuels Corp., nuclear power, and grid construction may therefore be supported simultaneously by energy policy and AI power demand, but the benefit mechanisms differ by company: CECEP Solar Energy equipment companies are more focused on tax credits and project economics, nuclear power operators are more focused on long-term power sales contracts, and grid engineering companies are more focused on approved projects and funding implementation. UBS Group AG believes nuclear power is still expected to receive bipartisan support; the two parties may also negotiate around faster permitting and requiring data center developers to bear more grid upgrade costs. The key investment takeaway that can be derived is that some new costs may shift from residential electricity prices to AI developers, while also creating order opportunities for power infrastructure companies. Defense, financials, and healthcare, by contrast, each need to be tested through the "demand-policy-cash flow" connection. Defense companies have large backlogs, but congressional appropriations and delivery pace still need to be watched; banks' M&A, underwriting, and trading revenue depend on capital market activity, and increased oversight may not necessarily end business expansion; increased healthcare spending and price constraints can coexist, and broad sector gains cannot replace subsector earnings analysis. Congressional investigations can intensify after a change in control, while major legislation remains constrained by institutional factors such as presidential veto power, which also means the market may first trade sentiment and valuation, then wait for actual policy and earnings verification.