Meta Q3 2025 Earnings: Strong Results Overshadowed by Massive AI Spending Plan and a Surprise Tax Charge

Meta’s Q3 2025 Earnings: A Booming Business Is Funding an Colossal AI Spending Spree

Meta just held its third-quarter 2025 earnings call, and the message was crystal clear: the core business is firing on all cylinders, but Mark Zuckerberg is preparing to spend an eye-watering amount of money to win the next era of artificial intelligence.

The results themselves were strong, showing a company with robust user growth and a deeply entrenched, highly profitable advertising engine. However, the real story wasn’t the strong quarter; it was the shocking forecast for future spending. Meta’s management warned investors that capital expenditures and total expenses are set to grow at a “significantly faster” rate in 2026, all in a high-stakes bet to build “superintelligence”.

Based on the company’s October 29, 2025, earnings call, here’s a breakdown of what’s going well, what has investors on edge, and how Meta’s leadership is defending its massive bet on an AI-driven future.

What’s Going Well: The Core Engine is Stronger Than Ever

Before diving into the massive spending, it’s important to understand why Meta can even consider it. The company’s “Family of Apps” (FoA) segment, which includes Facebook, Instagram, and WhatsApp, had an exceptionally strong quarter.

• Massive User Growth: Meta’s ecosystem is still growing. The company now sees 3.5 billion people using at least one of its apps every day. Instagram celebrated a major milestone, crossing 3 billion monthly active users.
• Threads is Gaining Traction: The app built to challenge X (formerly Twitter) has passed 150 million daily active users. Zuckerberg noted it “remains on track to become the leader in its category”.
• AI is Already Boosting Engagement: Meta’s investments in AI recommendation systems are paying off. In Q3, they led to 5% more time spent on Facebook and a 10% increase in time spent on Threads. Video engagement is a “particular bright spot,” with time spent on video on Instagram up more than 30% since last year.
• The Ad Business is Booming: Ad revenue for the FoA segment was $50.1 billion for the quarter, a 26% jump year-over-year. This was driven by a 14% increase in ad impressions and, impressively, a 10% increase in the average price per ad.
• Reels and AI Ads are Cash Cows: Meta’s TikTok competitor, Reels, now has an annual revenue run rate of over $50 billion. Furthermore, its “end-to-end AI-powered ad tools,” like Advantage+, now account for an annual run rate of over $60 billion.

Even the much-maligned Reality Labs segment posted good numbers, with Q3 revenue up 74% to $470 million, though this was partly due to retailers stocking up on Quest headsets for the holidays. More excitingly, Zuckerberg noted the new “Meta Ray-Ban display glasses” sold out in “almost every store within 48 hours”.

The Bombshell: An “Aggressive” Spending Spree for “Superintelligence”

The good news from the core business was completely overshadowed by the company’s financial outlook.

CFO Susan Li laid out a plan for staggering levels of investment. First, the company raised its guidance for 2025, increasing total expenses to a range of $116-$118 billion and capital expenditures (CapEx) to $70-$72 billion.

But the real shocker was the 2026 forecast.

Li warned investors that “CapEx dollar growth will be notably larger in 2026 than 2025“. She also stated that “total expenses will grow at a significantly faster percentage rate than 2025″.

The primary driver for this enormous cost increase is infrastructure. Li explained that “our compute needs have continued to expand meaningfully, including versus our own expectations last quarter”. This, combined with hiring expensive AI talent, will be the main reasons for the ballooning budget.

Zuckerberg’s opening remarks centered on this new priority. He is focused on “establishing Meta as the leading frontier AI lab” and “building personal superintelligence for everyone”. To do this, he believes the “right strategy to aggressively front-load building capacity” to be prepared for “the most optimistic cases” of AI’s arrival.

Analyst Q&A: “Why So Much, So Fast?”

Analysts on the call were quick to zero in on the massive spending plan, repeatedly asking for justification.

How Do You Justify This Spending?

Doug Anmuth of JPMorgan essentially asked how Meta could justify this “front-loading” of capacity and the “significantly faster expense growth”.

Zuckerberg’s answer was telling. He argued that Meta has consistently underestimated its own need for compute power. He explained that even if the “superintelligence” bet takes longer, all the extra compute capacity can be profitably used to improve the core business. “We feel pretty good that we’re going to be able to absorb a very large amount of that to just convert into more intelligence and better recommendations in our family of apps and ads in a profitable way,” he said.

In fact, he stated that Meta is “perennially operating the family of apps and ads business in a compute starved state at this point”. In his view, the worst-case scenario is that Meta “pre-built for a couple of years,” which he seems perfectly comfortable with.

What About ROIC (Return on Invested Capital)?

Brian Nowak of Morgan Stanley pushed on this, asking what “quantifiable signals” Meta is seeing that gives them confidence they will get a return on all this new CapEx.

Susan Li pointed to “very strong year-over-year growth” in “value-weighted conversion rates” for advertisers. In simple terms: the AI models are getting better, and advertisers are seeing better results, which proves the investments are working and driving revenue.

Is This for AGI or for Products?

Ross Sandler of Barclays asked if the goal was esoteric research (like AGI) or practical, revenue-generating products.

Zuckerberg framed it as two sides of the same coin. The research (building “superintelligence”) creates “new technological capabilities,” such as better reasoning or high-quality video generation. These new capabilities are then plugged directly into all of Meta’s products:

• The core apps: To improve content ranking.
• The ad business: To help advertisers create better creative and target ads.
• New products: To power Meta AI, business AI, and new content formats like Vibes.

The Fine Print: Regulatory Headwinds and a Weird Tax Bill

Beyond the AI spending, two other items stood out:

1. A Bizarre Tax Rate: Meta’s net income for the quarter looked disastrous at $2.7 billion, but this was due to a one-time, non-cash tax charge that resulted in a temporary 87% tax rate. Excluding this charge, net income would have been a very healthy $18.6 billion.
2. Major Legal Warnings: Susan Li issued a stark warning about “increasing legal and regulatory headwinds in the EU and the U.S.”. She noted that issues in the EU could have a “significant negative impact” on revenue “as early as this quarter”. Furthermore, she flagged that several U.S. “youth-related trials are scheduled for 2026 and may ultimately result in a material loss“.

The Big Picture: All-In on AI

Meta’s Q3 2025 earnings call will be remembered as the moment Mark Zuckerberg fully committed to the AI arms race, cost be damned. The company is leveraging its incredibly profitable and stable “old” business—social media advertising—to fund a colossally expensive pivot into an AI-first company.

While the core business is healthier than ever, investors are now forced to grapple with a new reality: Meta is transforming from a high-margin software company into a capital-intensive infrastructure builder, all in pursuit of a “superintelligence” that it believes will define the next generation of computing. It’s clear that investors are worried about this and have some questions about the tax rate impact and the potential for legal issues down the line but it still seems like Meta is a business clicking on all cylinders with an eye ahead for the future.

Disclosure : I am long Meta and may be long other stocks discussed in this article. This article is not meant to be investment advice and you should not buy or sell stocks based on information contained in this article. Talk to a qualified investment professional before making any investment decisions.