The U.S. stock market witnessed a sharp downturn on Monday, with the Nasdaq Composite plummeting 4% and the S&P 500 declining over 2.7%, erasing more than $4 trillion in market value. However, according to a report by UBS, the sell-off was not necessarily a signal of escalating U.S. economic risks but was primarily driven by the unwinding of extended positions in momentum and technology stocks.

The sell-off hit major tech giants hard, with Nvidia, Tesla, Apple, and Microsoft all suffering steep declines, sending shockwaves across global markets.

Tech and Momentum Stocks Take a Hit

The UBS report emphasized that the sell-off was exacerbated by investors liquidating overextended positions in high-growth technology stocks rather than due to a fundamental deterioration in economic conditions.

The Nasdaq Composite, which is heavily weighted toward technology stocks, plunged 4%, marking one of its worst single-day performances in months.
The S&P 500 lost over $4 trillion in market capitalization as market participants reassessed their positions in momentum stocks.
The equal-weighted version of the S&P 500 remained flat for the year, and the Russell 1000 value benchmark showed slight gains, further supporting the argument that the downturn was largely sector-specific.

Massive Losses for Tech Giants

Several leading technology companies suffered significant losses amid the market downturn:

Nvidia lost 5% of its value, shedding approximately $140 billion in market capitalization in a single day.
Tesla saw a staggering 15% decline, raising fresh concerns about its future profitability amid weakening demand and increasing competition.
Apple shares tumbled 4.85%, wiping out billions in market value.
Meta Platforms (formerly Facebook) saw a decline of 4.42%, losing $10 billion in market capitalization.
Microsoft, one of the world’s most valuable companies, saw its stock fall around 3%, erasing nearly $380 billion in value.
Amazon declined almost 2%, while Alphabet (Google’s parent company) slid 4.49%.

Market Sentiment Worsens Amid Economic Uncertainty

The sell-off in technology stocks has fueled broader concerns about market stability, particularly in light of global economic uncertainties. UBS analysts highlighted that several factors have added to investor nervousness:

Weak Consumer and Business Confidence: Market participants remain concerned about the economic outlook, with consumer spending slowing and business sentiment deteriorating.
Disappointing Economic Indicators: Recent U.S. economic data has fallen short of expectations, further fueling volatility in equity markets.
Potential Government Shutdown and Tariff Concerns: Investors are increasingly worried about the possibility of a government shutdown, as well as additional tariffs that could impact corporate earnings.

S&P 500 Erases Gains Following Trump’s Re-Election Rally

The S&P 500, which had surged nearly 8% following Donald Trump’s re-election on November 4, has now surrendered those gains. Investors had initially reacted positively to Trump’s victory, expecting business-friendly policies such as deregulation and fiscal stimulus. However, ongoing concerns over tariffs, trade policies, and inflationary pressures have dampened sentiment.

UBS: Market Correction Doesn’t Indicate Systemic Economic Risks

Despite the dramatic decline in major stock indices, UBS analysts maintain that the sell-off does not necessarily indicate an imminent economic crisis. The fact that broader market segments, such as the Russell 1000 value benchmark and high-yield bond spreads, have remained stable suggests that the correction is concentrated in high-growth and technology stocks rather than being a reflection of systemic risk.

“We note that while the moves in the S&P 500 have been dramatic, swings in other market segments have been more muted,” UBS noted in its report.