Yesterday was a reminder of just how quickly market sentiment can turn. On Wednesday, Wall Street had its best day in three months.
And yesterday? All those gains disappeared. And then some. The S&P 500 was heading for its worst day since April 2025. That was when Trump shook the world with his "Liberation Day" announcement. And the craziest part? Both times, the catalyst was exactly the same. The Democrats' victory in the midterm elections. So what changed in just 24 hours, who paid the price, and why?
WEDNESDAY'S PARTY
Let's start with Wednesday. The market celebrated the election results. The VIX, commonly known as the "fear gauge," fell 20%. Meanwhile, Brent crude plunged nearly 9%.
The cloud giants also rallied. Meta, Amazon, Microsoft, and Alphabet all moved higher. "And why would these companies go up? Aren't the Democrats trying to put the brakes on data centers?" you might ask.
That's exactly why. Investors figured that if fewer data centers get built, these giants will have less to spend. And lower expenses mean more money in their pockets.
But there's another side to this coin. Because the money these giants won't spend becomes lost revenue for someone else.
RED THURSDAY
Now let's move on to yesterday. By the closing bell, the S&P 500 had lost 4.4%. The Dow Jones was down 1,833 points, or 3.4%. And the Nasdaq plunged 5.5%.
With that decline, the Nasdaq was now 12% below its all-time high, which it had reached just in October. "And what does that mean?" you might ask. When an index falls more than 10% from its peak, it enters what is known as a correction.
And fear? It exploded. The VIX closed up 70%, at 28.31 points. Yes. A 70% JUMP IN A SINGLE DAY. That was its highest level in seven months. It was also on track for its biggest percentage gain since February 2018.
Even cryptocurrencies weren't spared. Bitcoin lost around 5%, falling to $76,300. And once again, it failed to act as the "safe haven" many people hope it will be. In Asia, South Korea's Kospi plunged 5.3%.
THE GIANTS ON THE WAY DOWN
And this brings us to the heart of yesterday's sell-off. Chips.
The semiconductor index closed down 12.3%. Every single stock in the index finished in the red. Not one exception. It is already down nearly 16% for the week.
Let's start with Nvidia. It closed down 9.3%, following Wednesday's 3.2% decline. It was the company's worst single-day drop since April 2025.
"And why does Nvidia matter so much?" you might ask. Because it is so large that a 1% move in Nvidia has a greater impact on the S&P 500 than almost any other individual stock. Yesterday, it was by far the biggest drag on the index.
AMD did even worse. It plunged 17.3% in a single day. And this happened just days after the company announced that its data center sales had more than doubled. In other words, the market looked beyond the headline numbers and started questioning how long this growth can last.
Broadcom and TSMC both lost more than 10%. Intel fell 10.3%, while Micron plunged 17.5%. Qualcomm opened down 13%, and Arm lost more than 12%.
And what about the cloud giants? Wednesday's gains turned into losses. Oracle fell 6.9%, Meta dropped 4%, Amazon lost 2.2%, Microsoft declined 3.6%, and Alphabet fell 1.9%.
And as if that wasn't enough, Elon Musk took a hit too. Musk had spent hundreds of millions of dollars trying to help Republicans win. Yesterday, Tesla plunged 10.8%, while SpaceX fell 9.1%.
WHY DID ALL OF THIS HAPPEN?
"Wait, what suddenly happened? Wednesday was a celebration and Thursday was a funeral?"
Put simply, the market started thinking about what the election results could mean for data centers.
The Democrats won control of both the Senate and the House. And states with some of the most ambitious data center expansion plans all turned blue. Texas, Ohio, and Georgia.
In fact, Texas' new governor, Gina Hinojosa, is calling for an immediate freeze on the construction of new data centers.
And what about local ballot measures? There were 41 votes across 10 states on proposals to restrict data centers. Voters came out against data centers in all but one of them.
Why? Many Americans are increasingly skeptical of artificial intelligence. And they don't like the fact that data centers are pushing up their electricity bills.
Even Meta acknowledged the problem. Its president, Dina Powell McCormick, said that building data centers would become "more difficult" following the elections.
And this is precisely where the risk lies. Data centers are packed with chips. So what does that mean? Fewer data centers mean fewer chip purchases. And all of this is happening at a time when artificial intelligence is driving a significant part of America's economic growth.
Of course, the elections simply added pressure to concerns that were already there.
Borrowing has become expensive. Every cloud giant has investment plans that comfortably exceed $100 billion a year. And Meta, Alphabet, and Amazon are already reporting negative free cash flow.
In other words, they are spending more money than their businesses are bringing in.
So the fear is straightforward: too much debt, not enough revenue.
