9 Biggest U.S. Stocks Ranked By Midterm Risk
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Part of our midterms guide. Start here: what the vote really changes for your money.
Betting markets give Democrats about a 94% chance of winning the House on Tuesday, and about seven in ten of taking the Senate too. President Trump keeps his veto, and Democrats won’t have the votes to override it. So the useful question for the biggest stocks isn’t “who wins?” It’s “what can the winners actually do to them?”
| Company | Value | 12-month return | What’s at stake | Exposure to the vote |
|---|---|---|---|---|
| SpaceX (SPCX) | $1.83T | −16% | About a fifth of 2025 revenue from the U.S. government; Musk is a top oversight target | High |
| Tesla (TSLA) | $1.58T | −9% | Musk hearings and subpoenas; its EV tax credits are already gone | High |
| Nvidia (NVDA) | $4.95T | +1% | China chip sales; Congress can tighten them through the defense bill | Medium-high |
| Alphabet (GOOGL) | $3.43T | 0% | Antitrust is in court; AI rules and data-center tax breaks are in Congress | Medium |
| Amazon (AMZN) | $2.60T | +8% | FTC trial in March 2027 is in court; labor and tariffs are in the headlines | Medium |
| Meta (META) | $1.57T | −7% | Kids’ online safety and Section 230, the rare tech issue both parties share | Medium |
| Microsoft (MSFT) | $3.88T | 0% | Government cloud contracts, AI rules | Low-medium |
| Apple (AAPL) | $5.05T | +27% | Tariffs are the President’s call; the DOJ case is in court | Low |
| Broadcom (AVGO) | $1.55T | −13% | Chip supply chains; little that Congress controls | Low |
The vote can’t reach the biggest fights. It reaches budgets and Elon Musk.
Together these nine are worth about $26 trillion. The ranking surprises most people: the companies with the scariest legal headlines sit in the middle, because judges, not Congress, will decide those cases.
See more lines: how we ranked them, and a note on returns
Exposure is our judgment of how much the outcome on Tuesday (not politics in general) can change each company’s revenue, costs or legal risk, given that a Democratic House can investigate, write budgets and block bills, but can’t pass laws past a veto. Market values and 12-month returns are last close before Nov 1 (Trefis market data; SpaceX and Tesla values use the share counts in their latest 10-Qs). SpaceX’s figure runs from its first trading day in June 2026. Weighted by value, the nine returned about +2% over 12 months; leave out Apple and the other eight are down about 3%.
Why Can’t A Democratic House Touch Google’s Or Amazon’s Biggest Fights?
Because they’re in court. Google is appealing the search ruling, and the government has cross-appealed for tougher remedies. A decision isn’t expected before 2027. In September, a judge declined to break up Google’s ad-tech business and ordered six years of oversight instead. The FTC’s case against Amazon goes to trial on March 29, 2027; on Oct 9 the judge refused to push it back. No vote on Tuesday moves any of those dates.
So Where Does The House Have Real Power?
Four places.
Subpoenas. House Democrats have said they’ll investigate AI companies, and their leader is weighing a select committee on AI with subpoena power. Musk, who ran the government cost-cutting effort in 2025, is the most obvious witness. That’s why Tesla and SpaceX rank high.
Budgets. The House writes the spending bills and the annual defense bill. SpaceX got about a fifth of its 2025 revenue from federal agencies. The defense bill is also where Congress can write chip-export rules that the President is unlikely to veto, which is Nvidia’s exposure.
Blocking. The White House wants Congress to override state AI laws with one federal rule. A Democratic House will likely say no. That leaves AI companies with a patchwork of state rules.
The 2027 debt limit. Democrats will want health-care money back. If they need to pay for it, the 2025 law’s write-offs for data-center spending are a big, visible target. One estimate put Google’s 2025 cash-flow gain from the 2025 law at $25 billion.
Here’s what this table means at home: many $1 million-plus portfolios hold several of these names directly, and own them again through index funds. That’s a lot of wealth riding on a handful of companies, and politics is only one of their risks. A Trefis partner firm can show you how concentrated you really are.
What Happened The Last Time Democrats Took The House?
They went after Big Tech, and the stocks went up anyway. After the 2018 midterm, a House antitrust panel spent over a year on Apple, Amazon, Google and Facebook, and their four CEOs testified in July 2020. From January through November 2019, the NYSE FANG+ index rose about 30%, according to CMC Markets, ahead of the S&P 500’s 25%.
After the 2022 midterm, Republicans took the House and Big Tech roared back in 2023: Nvidia more than tripled, Meta nearly tripled, and Amazon rose about 80%. Neither run had much to do with Congress. Rates and earnings did the work. Hearings make headlines; profits make returns.
Most exposed: SpaceX and Tesla. Least: Apple and Broadcom. A Democratic House can investigate Musk and write the budgets SpaceX depends on. It can’t change the outcome of Google’s appeals or Amazon’s trial. For the giants in the middle, the real political date is the 2027 debt-limit fight, not Tuesday.
One of them in depth: Amazon.
How Much Of Your Wealth Rides On Nine Companies?
Elections change the odds, not your plan. If you have $1 million or more invested, see what Tuesday means for your portfolio in a free 15-minute call with a Trefis partner – an expert financial advisor.
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