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Big Tech Earnings Test AI Rally

U.S. stocks traded mixed as investors waited for Alphabet and Tesla earnings, while chip gains, software weakness, oil risk, and Fed uncertainty shaped sentiment.

Market Minute
Market Minute

Jul 28, 2026

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Wall Street traded cautiously on Monday as investors waited for the first major megacap technology earnings reports of the season.

The S&P 500 stayed nearly flat, the Nasdaq slipped, and the market showed a clear split between AI-linked chip strength and weakness in software and broader megacap technology.

What Moved

Monday, July 27

  • The Dow rose 0.17% to 52,312.64 by 2 p.m.

  • The S&P 500 edged up 0.03% to 7,511.46.

  • The Nasdaq fell 0.29% to 25,761.74.

  • The Philadelphia Semiconductor Index rose 1%.

  • The S&P 500 software and services index fell 2.9%.

  • Utilities led S&P 500 sectors with a 2% gain.

  • Materials rose 1.4%.

  • Consumer discretionary lagged, falling 1%.

  • Alphabet and Tesla were scheduled to report after the bell.

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Why It Moved

The main driver was earnings caution. Investors were waiting for Alphabet and Tesla to provide the first major read on whether the AI-led megacap rally is still supported by business results.

The setup was already fragile. Major indexes had climbed sharply from their March lows, but momentum has become less reliable. Semiconductor stocks have swung sharply, and software stocks have been under pressure.

That split shaped the session. Chip shares rose as Nvidia, Broadcom, and Advanced Micro Devices helped support the information technology sector. The Philadelphia Semiconductor Index bounced after earlier weakness and was on track for a third straight gain.

Software moved the other way. The S&P 500 software and services index fell nearly 3 percent, showing investors are becoming more selective inside the AI trade.

Super Micro Computer was the standout move. Shares jumped 21 percent after the server maker said it had secured more than $60 billion in fourth-quarter orders. Dell and Hewlett Packard Enterprise also rose after Super Micro issued upbeat preliminary results, giving the AI server trade another short-term lift.

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Why It Matters Now

Several short-term signals emerged:

  • AI optimism is becoming more selective.

  • Chip and server names are still attracting buyers.

  • Software weakness shows investors are questioning premium valuations.

  • Alphabet and Tesla earnings could reset megacap sentiment.

  • Oil risk is again complicating the Fed outlook.

  • Defensive sectors are drawing support while traders wait.

The pressure was not limited to technology. Microsoft, Amazon, Apple, and Meta were among the biggest drags on the S&P 500, showing that investors were reducing exposure to some of the largest index weights before earnings.

Geopolitical risk added another layer. Oil prices climbed near six-week highs as Middle East shipping threats kept energy chokepoints in focus. President Donald Trump also warned that the United States would target Iranian infrastructure if Iran fired on ships in the Strait of Hormuz.

That matters because higher oil prices can feed inflation worries and complicate the Federal Reserve’s policy path. A Reuters poll showed economists expected the Fed to hold rates steady for the rest of 2026, but the risk of a rate hike remained elevated. Traders still priced a more than 68 percent chance that the Fed would leave rates unchanged at next week’s meeting.

Other earnings moves showed the market was still rewarding company-specific strength. AT&T rose after stronger wireless subscriber additions, while Philip Morris gained after quarterly results beat estimates.

In the immediate window ahead, Alphabet and Tesla earnings will set the tone for the next phase of the AI and megacap trade. Strong results could steady the Nasdaq and restore confidence in premium valuations. Weak guidance, rising oil pressure, or a more hawkish Fed signal could make investors more defensive even if chip stocks keep bouncing.

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