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Meta's Core Ad Business Is Still Mispriced at 18x Earnings

Strip out Reality Labs losses and Meta's advertising engine trades at 18x forward earnings — a 20% discount to Alphabet. The AI capex panic created an opportunity.

April 9, 2026
3 min read

Meta Is Still 20% Undervalued Even After the Rally

Meta Platforms jumped on the US-Iran ceasefire news, riding the broader risk-on wave. The street will tell you the move was about sentiment. We think it's about something more fundamental: the market is still not pricing Meta's advertising machine correctly.

At current levels, Meta trades at roughly 23x forward earnings. Strip out the Reality Labs losses — which the market treats as a permanent drag — and the core advertising business trades at 18x. For a company growing revenue at 15%+ annually with 40%+ operating margins, that multiple implies the market expects a deceleration that the data simply does not support.

The AI Capex Panic Was Overdone

Meta's stock took a beating earlier this year when management guided for $60-65 billion in 2026 capital expenditure, primarily for AI infrastructure. The market panicked, treating the spend as value-destructive empire building — a hangover from the metaverse spending backlash of 2022-2023.

But there's a critical difference between the metaverse capex and the AI capex: the AI spend is already generating measurable returns. Meta's Advantage+ advertising suite, powered by its recommendation engine, has driven a 30%+ improvement in ad conversion rates for early adopters. Advertisers are spending more per impression because the targeting works better. That's a capex programme with a visible ROI.

This dynamic was already visible.

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Meta Revenue (USD Billions)

The Multiple Maths

Here's where the Valuation Desk earns its keep. Meta generated $188 billion in revenue last year at a 35% profit margin, producing approximately $65.8 billion in net income. The current market cap of around $1.5 trillion implies 23x trailing earnings.

Now run the forward model. Consensus expects $210 billion in 2026 revenue, which we think is conservative given the AI-driven ad pricing uplift. At a 36% margin — modest expansion driven by operating leverage on the AI infrastructure — that's $75.6 billion in net income. Apply a 22x multiple, reasonable for a company growing earnings at 15%, and you get a $1.66 trillion fair value.

But here's the kicker. If Reality Labs losses narrow from $16 billion to $12 billion — which management's own guidance suggests — the core business earnings power jumps to $87+ billion. At 22x, that's $1.9 trillion. The market is giving you zero credit for the loss reduction.

Net Income (USD Billions)

Why the AI Capex Bears Are Wrong

The bear argument reduces to one claim: Meta is spending too much on AI and the returns won't materialise. We've heard this before. Almost word for word, it's what bears said about AWS in 2016, about Google's data centre spending in 2018, and about Meta's own mobile transition in 2013.

Every time, the market initially punished the capex, then rewarded the revenue it produced. Platform companies with 3+ billion daily active users can amortise infrastructure spending across an enormous revenue base. Meta's cost per AI inference query is dropping 40% annually. By 2027, the AI infrastructure becomes a fixed cost generating incremental revenue at near-100% margins.

The bears need the AI revolution to be a dud. That's an increasingly lonely bet.

Operating Margin (%)

Price for the Core, Get Reality Labs for Free

Meta's core advertising business — the part that actually generates cash — is growing at 15%+, generating 43% operating margins, and trading at 18x earnings when you strip out Reality Labs. By comparison, Alphabet's ad business trades at 22x. The discount is unwarranted.

Our fair value range is $640-680, representing 15-20% upside from current levels. The ceasefire rally is a nice catalyst, but the real driver is the relentless compounding of AI-enhanced ad revenue against a maturing infrastructure cost base.

We're buyers here and would add aggressively on any pullback below $550.

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