The 2026 U.S. midterm elections are approaching their final showdown, and Wall Street is repricing for potential shifts in the political landscape.
On November 3 local time in the United States, the midterm elections officially got underway. All 435 seats in the House of Representatives and 35 Senate seats are up for voters to decide.
This will not only determine control of the U.S. Congress for the next two years, but could also affect the Trump administration’s fiscal policy, AI regulation, energy policy, and expectations in the capital markets.
📊 I. Latest election outlook: Republicans face pressure
According to a Reuters/Ipsos poll released on November 2:
Democratic support: 46%
Republican approval rating: 38%
Trump’s job approval rating: 32%
The scenario most widely anticipated by markets is that Democrats could retake the House, while control of the Senate remains highly uncertain.
But leading in the polls doesn’t guarantee victory. What really matters is how the election results compare with Wall Street’s prior expectations.
📈 II. Three possible election outcomes: How might U.S. stocks react?
① Democrats retake the House, while Republicans retain the Senate
This is a scenario worth watching closely right now.
A divided Congress could constrain some major fiscal and tax initiatives, while adding uncertainty to the 2027 budget and debt ceiling negotiations.
Markets may first trade on easing political uncertainty, before refocusing on corporate earnings and Federal Reserve policy.
② Democrats win both the House and Senate
This would mean greater resistance to the Trump administration’s legislative agenda over the next two years.
Areas such as AI, large technology companies, and defense spending could face stricter congressional scrutiny, while expectations for healthcare, housing, and clean energy policies could shift.
For the Nasdaq, the key question is whether regulatory pressure will actually translate into policies that affect profits.
③ Republicans retain control of both chambers of Congress
This would significantly exceed some current market expectations.
Tax cuts, defense spending, and other fiscal policies could be easier to advance, potentially benefiting some cyclical sectors.
However, fiscal expansion could also push up U.S. Treasury yields, in turn weighing on high-valuation tech stocks.
🔍 III. Historical trends: Do U.S. stocks tend to rise after elections?
According to BlackRock, since 1970, the S&P 500 has risen an average of about 14.1% in the six months following U.S. midterm elections.
One important reason is that election uncertainty gradually fades, and investors refocus on earnings and economic fundamentals.
But it’s important to stress that historical average returns do not mean stocks are guaranteed to rise in 2026.
This year also faces multiple variables, including AI capital spending, inflation, energy prices, and U.S. Treasury yields.
🎯 IV. The real trading window may open after the results are announced
For short-term investors, I’m watching five market signals:
Nasdaq 100 (NDX): Can it break through recent resistance, with confirmation from trading volume?
U.S. 10-year Treasury yield: Will it fall persistently, supporting tech stock valuations?
U.S. Dollar Index (DXY): Are investors reducing their safe-haven allocations?
VIX volatility index: Will volatility truly decline after the election?
Brent crude: Can energy prices fall, easing inflation and interest rate pressures?
If Treasury yields fall and the VIX declines after the election results are announced, while the Nasdaq breaks through resistance on strong volume, that would be a more convincing sign of a recovery in risk appetite.
Conversely, if yields continue to rise and tech stocks rebound on weak volume, beware of a pullback after the good news is priced in.
Elections shape the policy direction ahead, but the long-term trajectory of U.S. stocks is ultimately determined by earnings, interest rates, and liquidity.
I don’t think a Democratic victory should simply be viewed as bearish, nor should a Republican victory automatically be equated with good news.
What really matters this time is: Did the election results exceed expectations? What policy changes will follow? And how will investors reallocate their money?
The U.S. stock market’s trading window is now open, but the best opportunities may not come on election day.
💬 Do you think the Nasdaq will begin another rally after the midterm elections, or face a deeper correction?