Microsoft, Meta, Apple and Amazon Earnings Will Decide the Fate of Wall Street's AI Rally

Microsoft and Meta Platforms report quarterly results after Wednesday's market close, with Apple and Amazon following a day later. It is the most important week of this year's earnings season for the tech sector and, as American market commentators put it, a real test of whether the massive spending on artificial intelligence infrastructure is starting to pay off for investors.

The immediate trigger for the unease was the July 23 earnings from Alphabet and Tesla. Alphabet touted record growth in Google Cloud sales, but the market focused more on its raised 2026 capital expenditure guidance, now $195-205 billion, up from a prior $180-190 billion. That same day, Tesla, weighed down by the costs of developing its Optimus robots and autonomous vehicles, fell 14.5 percent, its worst single-session performance since March 2025. Combined, the Magnificent Seven, the seven most important tech stocks on the US market, lost nearly a trillion dollars in market value that week.

Winners and losers

On the same day as Alphabet and Tesla, Microsoft shares fell 3.1 percent, Amazon 5 percent, and Meta 4.7 percent. Tesla closed the week down 18 percent, its worst weekly performance since December 2022. The exception is Apple, which unlike its rivals is not building its own costly data centers for training AI models, instead betting on partnerships and a lighter capital approach. Investors are rewarding that strategy: the company's shares gained 11 percent in July and 18 percent year to date, while the SOX semiconductor index lost 17 percent over the same month.

The infrastructure bill

The scale of spending set to be discussed on Wednesday and Thursday is unprecedented. Microsoft has guided for about $190 billion in capital expenditures in calendar year 2026, roughly $25 billion of which stems from higher component prices, mainly memory. Meta raised its capex guidance this year to a range of $125-145 billion, attributing the increase to rising component costs, and is already projecting about $205 billion in spending for 2027 as it builds clusters with a combined capacity of 14 gigawatts. Together, the four companies, Alphabet, Microsoft, Amazon and Meta, are expected to spend about $724 billion on AI infrastructure this year and nearly a trillion next year.

The problem now facing Wall Street comes down to a single question: what happens when the bill for building AI comes due, and no one can say when the returns on that investment will show up. Alphabet posted negative free cash flow for a quarter for the first time since its 2004 IPO, a warning sign that mattered more to some investors than the revenue figures themselves.

Earnings season backdrop

The backdrop for this week is paradoxical: the current S&P 500 earnings season is one of the best in years. About 86 percent of index companies have beaten analyst forecasts, and combined second-quarter profit growth came in at 37.9 percent year over year, versus an expected 23.3 percent. Even so, investors are focused not on the four giants' profits themselves, but on how much it costs to build AI infrastructure and whether those costs can be justified by revenue from cloud and AI products.

A shadow over Wall Street

Apple's Thursday results land at a particular moment for the company. Tim Cook, who announced in April 2026 that he would step down as CEO, will not actually hand the reins to John Ternus, the company's current head of hardware engineering, until September 1, 2026. Thursday's earnings call will therefore be one of the last Cook leads as Apple's CEO, after fifteen years in the role.

For Polish investors and tech companies tracking the US earnings market, the key question will be whether Microsoft and Meta repeat Alphabet's pattern, solid operating results overshadowed by rising capex, or whether they can convince the market that AI spending is already generating measurable revenue from cloud and enterprise services. The reaction to these two days could determine whether the AI stock rally now in its second year is entering a correction phase, or just a bout of nervousness before the next leg up.