Meta Platforms Is Down 11% in a Month While Alphabet Is Up 16%. What’s Going On?

May 18, 2026

David Moadel

4 min read

Quick Read

Meta Platforms (META) stock is down 11% over the past month after the company raised its full-year 2026 capex guidance to $125-145 billion with no clear discrete revenue line attributed to AI spending.
Meanwhile, Alphabet (GOOGL) stock is up 16% following Q1 2026 results showing that Google Cloud revenue grew 63% to $20.03 billion with a $460 billion backlog and Search revenue rose 19% to $60.4 billion.
The market is rewarding Alphabet for showing tangible AI-driven revenue gains across Cloud, Search, and Ads, while penalizing Meta for aggressive AI investment without a corresponding visible revenue attribution that mirrors Alphabet’s demonstrated returns.
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Two of the largest names in digital advertising have moved in opposite directions over the past month, and the gap is striking. Meta Platforms (NASDAQ:META) stock is down 11% over the trailing month, while Alphabet (NASDAQ:GOOGL) stock is up 16% in the same time frame. Both reported their financial results on April 29, and the market clearly chose a winner.

META shares last traded near $611, with the stock off by less than 1% on the session. Meanwhile, GOOGL stock is changing hands close to $399, up slightly for the day, after a year-to-date gain of 27%. The divergence is recent; over five years, META stock is still up 97% and GOOGL shares are up 252%.

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Why Alphabet Is Ripping

Alphabet’s Q1 2026 earnings report did the heavy lifting. Google Cloud revenue grew 63% year over year to $20.03 billion, and the cloud backlog nearly doubled quarter on quarter to over $460 billion. That backlog gave investors a tangible AI revenue line to point to.

Search, the franchise the market once feared AI would eat, instead accelerated. Google Search & Other revenue rose 19% to $60.4 billion, with CEO Sundar Pichai noting “queries at an all time high”. Waymo also surpassed 500,000 fully autonomous rides per week.

The bull case got a high-profile endorsement last weekend. A widely circulated post titled “Berkshire just tripled its GOOGL stake and bought Delta again” drew strong engagement on Reddit, with sentiment scores hitting 83 (very bullish).

Why Meta Is Underperforming

Meta Platforms’ headline EPS of $10.44 versus $6.66 estimated included a sizable one-time benefit that investors discounted. A $8.03 billion one-time tax benefit tied to Treasury Notice 2026-7 added $3.13 per share to the result.

The bigger issue was capex. Meta Platforms raised its full-year 2026 capex guide to $125 billion to $145 billion, up from the prior $115 billion to $135 billion range. Reality Labs posted another $4.03 billion operating loss, and total expenses are tracking up 35% year over year.

The structural critique is that Meta Platforms is spending aggressively on AI without a clean revenue line to credit it to, while Alphabet can attribute AI gains to Search, Ads, Cloud, and Workspace at once. The Reddit thread “Meta shares slide as plan to spend billions more on AI spooks investors” drew 711 upvotes following the earnings report.

The Honest Counterpoint

Meta Platforms’ ad engine remains enormous, with revenue up 33% year over year to $56.31 billion, ad impressions up 19%, and Family DAP at 3.56 billion. The valuation gap is real too, with META trading at a P/E ratio of 22x versus GOOGL at 18x, though investors typically pay more for visible AI revenue.

The prediction markets reflect the mood. Polymarket assigns a 73% probability that GOOGL stock closes higher today, while META stock carries a 95% probability of finishing lower. The crowd sees the gap widening, at least this week.

What to Watch

Keep an eye on the next two earnings reports for both names, particularly any commentary on capex efficiency. Reality Labs monetization milestones, Google Cloud margin trajectory, and EU regulatory developments around the Digital Markets Act will likely shape whether this gap closes or widens.

The near-term catalyst is simple: investors want to see Meta’s AI spending translate into a discrete revenue line the way Alphabet’s Cloud backlog now does. Until that happens, the market is likely to keep rewarding visible ROI over ambition, and the valuation discount on META stock relative to its growth profile may persist.

The takeaway: this isn’t a story about one company winning and another losing the AI race — it’s about how the market prices certainty. Alphabet is being rewarded for showing receipts, while Meta Platforms is being penalized for asking investors to trust the vision. The next session, and the next earnings cycle, will tell whether today’s bid for GOOGL holds and whether Meta can reframe its spending narrative.