Wall Street climbs as AI and chip stocks bounce back

US equities ended Wednesday on a positive note, with AI infrastructure and semiconductor companies spearheading the turnaround. The Nasdaq 100 climbed 2.28%, while the Nasdaq Composite added 1.60%. The Dow Jones Industrial Average also gained, but its 0.48% increase trailed the other benchmarks.

CoreWeave provided a catalyst for buyers to re-enter the AI space. The company's stronger revenue, upgraded guidance and management's plans to tackle financing worries alleviated some concerns about its expansion. This spurred buying across related sectors, even though longer-term questions about financing and profitability persist.

The rally also showed breadth. In the supplied snapshot, advancers outnumbered decliners in every group. Still, the Magnificent Seven were split, with Microsoft, Meta and Amazon ending lower.

US closing levels

• Dow Industrial Average: +253.01 points (+0.48%) to 52,490.24.

• S&P 500: +98.41 points (+1.31%) to 7,619.34.

• Nasdaq Composite: +400.31 points (+1.60%) to 25,466.19.

• Russell 2000: +24.85 points (+0.88%) to 2,846.26.

• Nasdaq 100: +633.46 points (+2.28%) to 28,374.25.

AI infrastructure and chip shares lead the buying

The biggest gains were seen in firms linked to AI computing capacity, memory, chip design and data-centre connectivity. These were large moves, with all seven names below posting double-digit percentage advances:

• CoreWeave: +$12.04 (+24.71%) to $60.77.

• Nebius: +$20.69 (+15.44%) to $154.69.

• Sandisk: +$117.70 (+13.69%) to $977.69.

• Bloom Energy: +$24.05 (+12.97%) to $209.47.

• Arm: +$21.87 (+12.05%) to $203.36.

• Micron: +$86.19 (+11.89%) to $811.30.

• Lumentum: +$62.49 (+10.67%) to $648.06.

The buying extended beyond the biggest tech companies. Cloud infrastructure providers, memory suppliers, optical connectivity firms and power-related stocks were among the winners, giving the recovery greater breadth.

Mag 7: Four higher, three lower

Tesla and Nvidia led the advancers, while Alphabet and Apple also rose. Microsoft was the worst performer.

• Tesla: +$11.04 (+2.91%) to $390.82.

• Nvidia: +$4.84 (+2.87%) to $173.73.

• Alphabet: +$6.07 (+2.11%) to $293.45.

• Apple: +$7.12 (+2.04%) to $355.63.

• Amazon: −$4.70 (−1.74%) to $266.17.

• Meta: −$12.62 (−1.97%) to $628.77.

• Microsoft: −$12.03 (−2.26%) to $521.13.

The Nasdaq 100's solid gain, despite those three falling heavyweights, underlines the strength elsewhere in the index. Buyers were positioning across a broader range of technology stocks.

Market breadth supports the advance

The market's breadth indicated a favourable split.

• Dow: 18 advancing; 12 declining.

• S&P 500: 311 advancing; 174 declining.

• Nasdaq 100: 83 advancing; 17 declining.

• Nasdaq: 1,933 advancing; 1,275 declining.

• NYSE Composite: 1,030 advancing; 754 declining.

The Nasdaq 100 had the strongest participation, with roughly five advancers for every decliner. The broader Nasdaq and NYSE also showed positive breadth, though less pronounced. This points to a rally with wide participation and a particular concentration in large technology names.

What traders can learn from today's rally

An index gain shows the direction. Breadth tells you how many stocks are taking part.

On Wednesday, the Nasdaq 100 delivered both a strong percentage advance and robust participation. That is encouraging for buyers. But a sharp rebound alone does not signal a lasting trend change. The next step is follow-through: buyers must defend the recovery and continue pushing through resistance.

For individual stocks, the index is a helpful gauge, but each stock still requires its own bias, risk and targets. Microsoft, Meta and Amazon were reminders of that on Wednesday.