Magnificent Seven Earnings to Test Whether AI Investment Is Paying Off

Four of the Magnificent Seven report this week, with Microsoft and Meta landing Thursday morning local time and Apple and Amazon following on Friday. Between them, they carry an enormous chunk of the S&P 500. It’s been a strong start to earnings season, but Josh Gilbert, Lead Market Analyst at etoro comments that the Magnificent Seven’s 5.7% fall last week shows that investors are no longer rewarding headline beats alone, they want proof that AI growth is accelerating faster than the cost of building it. 

Microsoft has the most to prove. The stock has been the second-worst performer from the Mag 7 so far this year, with investors rattled by its 2026 capex guidance heading towards USD$190 billion. Azure growth is expected to land close to 40%, a number most companies would celebrate, but with Google Cloud growing at more than double that pace, albeit from a smaller base, strong growth alone may not be enough. Investors want evidence that Microsoft’s spending is translating into faster revenue growth, stronger margins and meaningful returns from AI products. 

Meta faces the same spending question, with this year's outlay guided at up to USD$145 billion and next year's outlay potentially far larger. That said, advertising growth is now running at its fastest pace since 2021, driven by both higher ad volumes and higher prices, the clearest evidence yet that AI is doing real work in the ad machine, which may have bought Mark Zuckerberg some patience from markets. The focus will be on whether AI is continuing to improve ad targeting and monetisation quickly enough to justify the infrastructure bill.

Amazon enters earnings with the stock down around 13% since its last report, and AWS will be the key number. Growth is expected to accelerate from the 28% delivered last quarter to above 30%, and if the world’s largest cloud business can show that roughly USD$200 billion of spending is converting into revenue, it could lift sentiment across the entire sector. Another enormous capex increase without a matching acceleration in AWS would do the opposite. 

Apple, meanwhile, has quietly been the winner of the group, up over 20% since its last result as investors gravitate towards the one mega-cap not writing enormous AI cheques. This is also Tim Cook's final earnings call as CEO, the end of an era in its own right, with John Ternus taking the reins in September. Investors will be looking for clues about demand heading into the next iPhone cycle, although Apple is unlikely to reveal specific launch details before its September event.  

Markets are not questioning whether AI makes money anymore, they are questioning whether it makes enough, quickly enough, to justify what it costs. Alphabet showed that even strong cloud growth can be overshadowed by another increase in the spending bill, so Microsoft, Meta and Amazon will need to deliver more than impressive revenue numbers. By Friday afternoon, investors should know whether Big Tech’s AI spending is beginning to earn its keep, or whether August starts with the sector on the back foot.