Rivian stock surged 24.14% to $17.38, adding $3.38 in a single session, as strong earnings and higher delivery guidance lifted investor confidence. In contrast, Nvidia fell 0.75% to $185.53, Intel slipped 0.88% to $46.07, and Pinterest plunged 20.63% to $14.71 after weak results. The divergence highlights a sharp split in today’s US stock market, where earnings strength is rewarded but AI disruption fears are punishing companies seen as vulnerable.
The broader market remained volatile. The Dow traded near 49,428, the S&P 500 hovered around 6,831, and the Nasdaq stood near 22,543. All three major indexes are on track for weekly losses, with the Nasdaq down roughly 2% this week.
Inflation data added another layer. The Consumer Price Index rose 2.4% year over year in January, below the 2.5% estimate. Core inflation came in at 2.5%. While this supports possible Federal Reserve rate cuts, investors remain cautious due to earnings uncertainty and AI-related disruption across industries.
Why Rivian stock surged 24% today
Rivian Automotive delivered one of the strongest moves in the market. The electric vehicle maker projected 2026 vehicle deliveries between 62,000 and 67,000 units. That implies growth of 47% to 59% compared to 2025 levels.
Fourth-quarter adjusted losses narrowed to 54 cents per share. Analysts had expected a loss of 68 cents. Revenue reached $1.29 billion, beating the $1.26 billion estimate.
Investors responded to the improved outlook and tighter losses. The stock rallied sharply as traders priced in stronger demand and operational progress. In a market searching for growth certainty, Rivian provided clear forward guidance.
Why Nvidia stock fell despite AI dominance
Nvidia, one of the biggest AI stocks in the US market, slipped 0.75%. The decline was modest but significant given its heavy weight in the Nasdaq and S&P 500. The weakness appears tied to broader AI valuation concerns. Investors are reassessing how far AI spending can expand without creating competitive pressure and margin risks across the tech sector.
Even companies seen as AI leaders are not immune when volatility rises. Some traders locked in profits after a strong run earlier in the year. The stock remains near the upper end of its 52-week range of $86.62 to $212.19.
Intel stock down as chip sector faces rotation
Intel declined 0.88% to $46.07. While the drop was not dramatic, it reflects ongoing uncertainty in the semiconductor space.
Investors are distinguishing between AI infrastructure leaders and companies still in turnaround mode. Applied Materials rose 12% on strong earnings, showing demand for chip tools remains robust. But Intel faces competitive pressure and margin rebuilding challenges.
Sector rotation is driving uneven performance. Not all semiconductor stocks are moving together.
Why Pinterest crashed 20% after earnings miss
Pinterest was among the biggest losers of the day, plunging more than 20%. The company reported fourth-quarter results that missed expectations and issued a weak forecast.
Revenue growth concerns triggered a sharp sell-off. Analysts also raised questions about how artificial intelligence could disrupt Pinterest’s discovery and advertising model.
In the current market climate, investors are highly sensitive to revenue slowdowns. Companies perceived as vulnerable to AI competition are being punished quickly. The reaction was swift and severe.
Palantir stock gains as AI narrative supports defense analytics
Palantir rose 1.18% to $130.66. While not a massive gain, the move stands out in a volatile session.
Palantir benefits from the AI theme rather than being threatened by it. Its government contracts and enterprise analytics platform are viewed as AI-enabling infrastructure.
Investors continue to differentiate between AI “winners” and AI “losers.” That narrative is shaping daily trading patterns.
DraftKings tumbles despite earnings beat
DraftKings fell 12.18% to $22.09. The sports betting company beat fourth-quarter estimates, posting 25 cents per share in earnings on $1.99 billion in revenue. Analysts had expected 15 cents per share on $1.98 billion.
However, the company’s 2026 revenue forecast of $6.5 billion to $6.9 billion came in well below the $7.31 billion consensus estimate.
Forward guidance matters more than past performance. Investors sold the stock on growth concerns despite the earnings beat.
AI disruption fears spread beyond tech
The biggest theme driving market volatility is artificial intelligence disruption. Investors fear AI could impact revenue models in software, media, finance, and industrial sectors.
Financial stocks have also struggled. Charles Schwab is down 11% this week. Morgan Stanley has lost 7%. Software names like Workday are down 10%. Media stocks including Disney and Netflix have declined 5% to 7%.
The market is reacting to uncertainty. AI could reshape cost structures, labor demand, and competitive dynamics. Investors are adjusting valuations accordingly.
January CPI showed inflation cooling to 2.4% annually. That was below the 2.5% forecast. Core CPI came in at 2.5%, in line with estimates.
This supports expectations that the Federal Reserve may consider rate cuts later this year. However, markets are not celebrating aggressively.
Lower inflation is positive. But growth uncertainty and earnings divergence are limiting upside momentum.