The Democratic 'blue wave' in the US raises concern about data centers: the Nasdaq collapses due to sales of shares linked to AI

If yesterday the markets celebrated what seems to be the end of the 'Trump era' - or at least, a government without total opposition - after the Democrats have achieved a historic majority in the midterm elections, today certain fears return. Especially around the sector that has been the protagonist of the stock market fluctuations in recent months: artificial intelligence (AI).

This Thursday a new wave of collapses in stocks linked to the development of data centers and AI is shaking Wall Street and erasing all the gains of the previous day, which had been the best in three months. In the American stock market, the S&P 500, the most representative of American companies, has fallen 3.2% since the bell and, according to historical data, is on track to record its worst day since US President Donald Trump shook markets around the world in April 2025 with his tariffs and his Liberation Day.

Along with the S&P 500, the Nasdaq Composite, with a significant technological weight, leads the declines with a 4.9% cut. With company names, Nvidia has already fallen 6.3% after having fallen 3.2% yesterday. CoreWeave, a company specialized in renting access to artificial intelligence chips through the cloud, loses 10%.

Stock markets around the world have been pressured in the day after the election results by the continued falls in technology stocks linked to AI due to growing fear that new and more restrictive regulations will be imposed on the construction of new data centers following the Democratic victories in many American states.

In the case of Asia, where the presence of companies linked to AI is very relevant, South Korea's Kospi index plummeted 5.3% at its close. And all this comes after months of strong fluctuations amid fears that the development of new data centers for AI will slow down due to the high cost of financing.

These companies have enormous influence on Wall Street because they have become some of the largest market capitalization companies. For example, a 1% change in Nvidia's stock has more impact on the S&P 500 than that of almost any other American company, since it is the second-highest company in stock market value.