S&P 500 Edges Higher Amid Mixed Mega-Cap Earnings; Dow Leads Market Indexes Overall
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By Anders Bylund – Apr 30, 2026 at 2:20PM ESTKey PointsThe Big 3 indexes are up today, with the Dow leading the way for once.The Magnificent Seven are no longer moving in lockstep, and that may be a healthy sign for the market.Oil prices took a breather Thursday, but the Iran conflict and blocked Strait of Hormuz remain key concerns.The three major U.S. stock indexes moved higher by midday Thursday, though the gains were uneven. The themes of the day were earnings reports, oil prices, and artificial intelligence (AI). As usual, right?
The Dow Jones Industrial Average (^DJI +1.72%) led with a 1.3% advance as of 1:08 p.m. ET, buoyed by a double-digit surge in Caterpillar (CAT +10.03%) shares. The industrial equipment giant posted strong earnings this morning. The S&P 500 (^GSPC +1.02%) added 0.4%, while the tech-heavy Nasdaq-100 eked out a 0.2% gain, largely driven by the same mega-cap earnings reports. Four of the Magnificent 7 companies reported results last night, resulting in two significant price dips, one huge jump, and one modest correction. ^SPX data by YCharts Key catalysts at midday Alphabet (GOOG +9.41%) (GOOGL +9.36%) is up by 9.6% after its Google Cloud division posted 63% revenue growth. At the same time, Alphabet's AI service sales are constrained by limited supplies of electric power and number-crunching hardware -- not by incoming orders. The backlog of unfilled Google Cloud orders is up to $462 billion, nearly doubling from the last quarter. Meta Platforms (META 7.67%) had a rougher evening. The Facebook and Instagram parent plans to spend $135 billion on AI infrastructure this year, up from $127 billion three months ago. Meta beat Wall Street's estimates across the board, but investors backed away from its costly infrastructure spending. The stock is down 9.2% at the moment. Microsoft (MSFT 4.09%) experienced a 5.7% dip based on -- you guessed it -- management's AI spending plans. Amazon (AMZN +0.27%) got its mega-spending stock price cut out of the way in February and only dipped 1.2% on Thursday. Yes, both Microsoft and Amazon beat the consensus analyst targets on both the top and bottom lines. That's not always enough when investors are looking for head-turning surprises. Image source: Getty Images. Of course, Caterpillar's Dow Jones-moving success also tapped into the AI boom. There's a lot of AI data center construction going on, which means Caterpillar's bulldozers and excavators are in high demand, too. Nvidia (NVDA 3.78%) dropped 4.3% without even reporting earnings. Thanks to the chip designer's dominant share of the index weightings, its milder price drop made a bigger difference than Microsoft's or Meta's earnings-based moves. The pain stemmed directly from Alphabet's earnings, as the Google parent said it's shipping AI accelerators to "a select group of customers." In other words, Nvidia is facing fresh competition. And I can't analyze index moves without checking up on Iran nowadays. The critical Strait of Hormuz remains blocked. Still, Iranian leaders expect "calm" in the region as the country seeks tighter control of the waterway. As a result, the soaring oil prices are taking a breather today. ExpandNASDAQ: GOOGLAlphabetToday's Change(9.36%) $32.76Current Price$382.70Key Data PointsMarket Cap$4.2TDay's Range$365.82 - $385.8452wk Range$147.84 - $385.84Volume2.9MAvg Vol32MGross Margin59.68%Dividend Yield0.24% What's next? Thursday's action tells a clear story: investors are done writing blank checks for AI ambitions. Alphabet showed up with receipts of soaring Google Cloud revenues, and the stock got rewarded. Meta brought a long shopping list instead. The stock was punished.
The Magnificent Seven aren't moving in lockstep anymore. That's a healthy change. It means investors are thinking critically about which companies are turning AI hype into AI revenue. This time, Alphabet stepped up as a clear leader.Read NextApr 30, 2026 •By Howard SmithStock Market Today, April 30: Caterpillar's Jump After Earnings Helped Fuel Surge in Dow Apr 23, 2026 •By Josh Kohn-LindquistStock Market Today, April 23: Markets Dip As Strait of Hormuz Conflict IntensifiesApr 22, 2026 •By Josh Kohn-LindquistStock Market Today, April 22: Alphabet Helps Lead U.S.
Markets Higher After Unveiling New AI Chips and PartnershipsApr 16, 2026 •By David DierkingThe Dow Fell Into Correction Territory During the Iran Conflict.
It Has Already Bounced Back. Here Is the Pattern Long-Term Investors Should Memorize.Apr 15, 2026 •By Emma NewberyStock Market Today, April 15: S&P 500 and Nasdaq Reach New HighsApr 15, 2026 •By Anders BylundDow Jones Falls 0.5% as S&P 500, Nasdaq 100 Post Modest Mid-Day GainsAbout the AuthorAnders Bylund is a contributing Motley Fool media and technology analyst covering semiconductors, cloud computing, internet infrastructure, quantum computing, and streaming media. Previously, Anders was a systems administrator for Nielsen Technology and CSX, gaining hands-on experience with enterprise-class systems. He was also a freelance writer for Ars Technica, TIME, USA Today, CNN, WIRED, and AOL's Daily Finance. He holds a bachelor’s degree in English and a master’s degree in library and information sciences from Florida State University. He believes in coyotes and time as an abstract.TMFZahrimX@TMFZahrimStocks MentionedDow Jones Industrial AverageDJINDICES: ^DJI$49,709.28(+1.73%)+$847.47S&P 500 IndexSNPINDEX: ^GSPC$7,209.60(+1.03%)+$73.65MicrosoftNASDAQ: MSFT$407.78(-3.93%)-$16.68AlphabetNASDAQ: GOOGL$383.33(+9.54%)+$33.39AmazonNASDAQ: AMZN$263.76(+0.27%)+$0.72CaterpillarNYSE: CAT$891.58(+10.06%)+$81.53NvidiaNASDAQ: NVDA$201.38(-3.76%)-$7.87Meta PlatformsNASDAQ: META$616.88(-7.81%)-$52.24AlphabetNASDAQ: GOOG$379.48(+9.26%)+$32.17*Average returns of all recommendations since inception. Cost basis and return based on previous market day close.