The "blue wave" across the country also affected the stock market, driving up stocks related to healthcare and clean energy, while causing a significant decline in stocks related to data centers and defense companies.

After the Democratic Party won control of the House of Representatives and the Senate, as well as key gubernatorial elections in Texas and Georgia, the market indices soared significantly. In Washington, the Democratic-controlled Congress will now become a balancing force against President Donald Trump's agenda. Trump's agenda includes tax cuts, as well as policies that are seen as fueling inflation, such as tariffs and the Iran war.

Local and state-level elections will also affect data center stocks. Some states have already passed construction restrictions, while the elected Democratic governor of Texas has promised to implement a moratorium.

In a note on Wednesday, the Investment Research Institute of Wells Fargo stated: "Democratic control may slow down the advancement of deregulation in the fields of finance, energy, and digital assets. We still believe that both parties have the incentive to reach compromises on issues such as data center location selection and overall artificial intelligence."

The following are some of the stocks that saw the greatest fluctuations due to the election results.

Solar energy and clean energy win.

Nextpower soared by over 11.2%, Canadian Solar rose by 6.7%, Plug Power increased by 3.6%, First Solar rose by 4.6%, Sunrun increased by 1.3%. Nextera Energy rose by 4.9%. Investors hope that the Democratic Party will counteract the Trump administration's negation of clean energy policies.

The healthcare sector has seen an increase.

Investors are optimistically expecting that the reduction in healthcare spending may slow down or even reverse, and at the same time, the enhanced subsidies planned under the Affordable Healthcare Act could also be extended, driving up the prices of healthcare companies.

Molina Healthcare and Centene rose by 8.9% and 12.6% respectively. HCA Healthcare soared by 10.3%, Universal Health Services increased by 10.9%, Tenet Healthcare rose by 9.6%, and Elevance Health increased by 4.9%.

Elon Musk Faced Setbacks

After the Democratic Party won the elections for Governor of Texas, the Senate, and the position of Attorney General, as well as regained control of the Texas House of Representatives, Elon Musk's SpaceX and Tesla declined by 3.8% and 3.3% respectively. Musk is the CEO of both companies. He invested at least $474 million in supporting Republican candidates during the mid-term elections, including $224 million in "Texas," which is also where the headquarters of Tesla and SpaceX are located.

Defense sector suffers setbacks

If Democrats challenge military spending, defense companies may face pressure. The RTX index fell by 2.4%, Lockheed Martin fell by 6.9%, Northrop Grumman fell by 4.5%, and the Howmet Aerospace index fell by 4.3%. The Palantir Technologies index fell by 2.1%.

The Trump administration has requested $1.5 trillion in defense funding for the fiscal year 2027. In addition, the government has separately asked Congress for an additional $87.6 billion in funding for the fiscal year 2026, mainly related to the conflict with Iran.

Drone stocks also fell. Kratos Defense and Security Solutions declined by 12.3%, AeroVironment fell by 8.3%, Red Cat fell by 10.4%. Ondas fell by 7%, and Unusual Machines fell by 9%.

Data center stocks decline

Companies related to data centers have generally seen declines, and the market is concerned that the infrastructure construction of AI may face restrictions or pauses.

New cloud service provider CoreWeave — which is seen as a representative company for the large-scale AI related debts that are a concern to the market — fell by 9.9%. Its peers Nebius and Iren fell by 6.7% and 11.2% respectively.

Infrastructure stocks also tumbled significantly, with Comfort Systems falling by 15.1%, Vistra falling by 13.8%, and Micron Technology falling by 7%.

However, five of the "Big Seven" stocks rose. Apple increased by 5.3%, and Microsoft rose by 6.7%, with Apple reaching a record high during the session. Alphabet rose by 3.2%, and Meta rose by 1.4%.

Affordable Transactions

Transactions centered around consumer relief also emerged, driving up stocks in housing, tourism, and essential consumer goods. Affordability was a key theme in this election, as American citizens are facing high inflation pressures.

Home builders Pulte, D.R, Horton, and Lennar rose by approximately 7.2%, 8.1%, and 7.1% respectively. Aviation stocks also saw gains, with United Airlines rising by 8%, American Airlines by 6.3%. Southwest Airlines increased by 6.8%, and Delta Air Lines by 7.2%. Cruise line operator Carnival rose by 7.3%, while Royal Caribbean and Norwegian Cruise Line increased by 6.4% and 6.8% respectively. Booking Holdings rose by 9.8%.

Essential consumer goods companies are also in high demand. Dollar Tree soared by 9.6%, Walmart rose by 3.5%, Constellation Brands increased by 5.3%. Dollar General rose by 8.5%, and Conagra Brands rose by 7%.

Trump Media & Technology Group

The Republican Party's widespread losses have also dragged down U.S. President Donald Trump's social media platforms and technology companies, with the related stocks plummeting by 24.5% and hitting a 52-week low.

CNBC's Luke Fountain, Dominic Chu, and Nicholas Wells have contributed to the reporting of this article.