Meta's advertising business just posted its fastest growth in nearly five years, and the stock still fell. Shares dropped between 5% and 10% in after-hours and following-day trading after the company released second-quarter 2026 results on July 29, a reaction that had almost nothing to do with how many people are using Facebook and Instagram and everything to do with how fast the company is burning cash to build AI infrastructure.

The advertising business is genuinely humming

Revenue reached $60.8 billion for the quarter, up 28% year over year and ahead of the roughly $60.2 billion analysts had modeled, marking Meta's quickest growth pace since late 2021, excluding the first quarter of this year. Advertising revenue specifically climbed 27%, driven by a 14% increase in ad impressions across Meta's platforms and a 12% rise in the average price per ad. Daily active users across Meta's family of apps reached 3.6 billion, up 3% year over year, with usage rebounding after a brief dip the company had reported back in April.

Luke Stillman, managing director at research firm Madison and Wall, summed up the underlying business in simple terms: "Meta's underlying ad business that's financing everything though is still performing well and is our main focus." That distinction, between a strong core advertising engine and everything Meta is currently spending on top of it, turned out to be exactly where this quarter's story split in two.

Where the profit actually went

Diluted earnings per share came in at $6.18, down 13% year over year and well below the $7.19 to $7.22 range analysts had expected, a miss of roughly 14% to 15%. Net income fell approximately 14% to $15.8 billion. Operating margin narrowed sharply, from 43% a year earlier to 31% this quarter, a 12 percentage point compression that management attributed to a specific combination of one-time and recurring cost pressures.

Two items did much of that damage: a $2.4 billion charge tied to legal proceedings, whose specific source Meta did not disclose in detail, and $1.18 billion in severance costs connected to layoffs the company carried out in May 2026. Total costs and expenses surged 55% year over year to $42.0 billion, the widest expense growth the company has posted in years relative to its revenue growth.

The number that actually spooked Wall Street

Buried beneath the margin story sat an even starker figure. Free cash flow, the cash left over after Meta covers its operating costs and capital spending, collapsed 91% to just $784 million, down from $8.55 billion in the same quarter a year earlier. Free cash flow margin fell from roughly 18% of revenue to just 1.3%.

The mechanics behind that collapse are straightforward once broken down. Operating cash flow actually grew nearly 25% to $31.86 billion, a genuinely healthy increase. But capital expenditure, including finance-lease principal payments, reached $31.08 billion for the quarter alone, consuming 97.5% of that operating cash flow almost entirely. Put simply, Meta's underlying business is generating meaningfully more cash than it did a year ago. It just isn't keeping nearly any of it, because building AI infrastructure is now absorbing almost every dollar as fast as it comes in.

A capex commitment that keeps climbing

Meta raised the lower end of its full-year 2026 capital expenditure guidance to $130 billion, up from a prior range that began at $125 billion, while keeping the upper end at $145 billion. That range has moved upward twice already this year; at the start of 2026, Meta had originally guided toward $115 billion to $135 billion in capital spending. Narrowing the floor upward rather than the ceiling downward signals rising confidence in the spending commitment itself, not any hesitation about it. Last year, by comparison, Meta spent roughly $72 billion on capital projects for the full year, meaning the current guidance points to spending that could nearly double year over year.

Mike Proulx, a senior executive at research firm Forrester, framed the shift in investor sentiment plainly: "Meta's AI spend was easier to celebrate when margins were expanding. It's harder to celebrate now that the costs are showing up in the numbers." Proulx added that Meta's ambitions extend well beyond improving its existing apps, noting the company "believes AI can create entirely new businesses," a bet that requires enormous upfront infrastructure investment long before any new revenue stream materializes.

Reality Labs remains a steady drag, not a new one

Meta's Reality Labs division, responsible for virtual and augmented reality hardware and software, posted a quarterly operating loss of $4.62 billion on just $431 million in revenue, continuing a now-familiar pattern for the unit. That loss was more than offset by the Family of Apps segment, which generated $23.39 billion in operating income during the same quarter, underscoring how heavily Meta's overall profitability still depends on its core advertising business propping up its more speculative, forward-looking investments elsewhere in the company.

Guidance for the rest of the year offers a mixed signal

Looking ahead, Meta guided third-quarter revenue to a range of $61 billion to $64 billion, putting the $62.5 billion midpoint modestly below the $63.14 billion analysts had been expecting, and implying a deceleration from the second quarter's 28% growth pace. Full-year expense guidance was set at $165 billion to $169 billion, and the company said it expects 2026 operating income to exceed 2025's total, even as free cash flow remains under pressure for the foreseeable future given the scale of ongoing capital commitments.

Why this quarter matters beyond one company's numbers

Meta's results landed in the same week that fellow hyperscaler Alphabet posted its own record cloud growth alongside a similarly aggressive capital spending increase, part of a broader pattern across the technology sector in which capital expenditure by companies including Amazon, Google, Microsoft, and Oracle is projected to reach almost $700 billion in 2026, roughly $300 billion more than in 2025, according to commentary from Brian Wesbury, chief economist at First Trust. That collective spending is now large enough, according to Wesbury, to account for a full percentage point of U.S. GDP growth on its own.

Taken together, Meta's quarter offers one of the clearest single data points yet in the market's ongoing debate over whether AI infrastructure spending across Big Tech has outrun any realistic near-term payoff. A 28% revenue increase used to be an unambiguous win. This week, it wasn't nearly enough to offset what investors are now watching far more closely: how much cash is actually left over once the AI buildout takes its share.

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*Sources cited in this article include Meta's official Q2 2026 earnings release and earnings call, and reporting from Reuters, CNBC, TechTimes, TradingKey, Ynetnews, EBC Financial Group, The Next Web, and StockTitan covering the July 29, 2026 results. All figures reflect reporting available as of July 29, 2026.*