AppLovin vs. Reddit: Two 2026 Craters, Two Opposite Risks

Any two stocks that shed a third to a half of their value while growing revenue 50–60% usually get filed under one label: overpriced AI names punished when the trade turned. AppLovin is down roughly 53% in 2026. Reddit is down about 32%. Both just reported summer quarters of booming, highly profitable growth. The resemblance ends at the price chart, and that is precisely what a buyer is actually underwriting. These two fell for mirror-image reasons.

AppLovin fell on its own engine.

AppLovin is now a pure advertising company, its mobile-gaming portfolio divested in 2025. The product is AXON, an AI recommendation engine that decides where performance ads land and charges advertisers for the sales it drives. In the second quarter it reported $1.92 billion of revenue, up 53% year over year, at an 84% adjusted EBITDA margin, with $1.27 billion of net income. Those are elite numbers.

Then the surprise: it missed. Not an analyst estimate — its own guidance, and Piper Sandler flagged it as the first time since going public that AppLovin missed its own revenue and adjusted-EBITDA midpoints. Management's explanation was specific rather than evasive: the pace of meaningful model improvement was lighter than normal during Q2, which it attributed to the complexity of an architecture upgrade, with the enhanced models landing in the weeks afterward. AppLovin said the enhanced models went live in the weeks after the quarter and were already reaccelerating growth into the third quarter.

That is the entire AppLovin bull case and the entire risk in one sentence. Everything the stock is worth rests on AXON improving faster than the compute it costs to run. The company is now spending about $0.10 per incremental revenue dollar on computing for more complex models — a real but modest drain off a roughly 79% free-cash-flow margin. The market treated the stumble as defining: the stock fell 18.6% in a single session.

The discount is deep. AppLovin trades near $314, down more than half from its December high, and has been dragged by a stack of short-seller reports — money-laundering and data-scraping allegations that have not been proven, against an SEC inquiry into the company that concluded with no action. On the earnings it carries, the valuation screens cheap: about 19.5x trailing EBITDA against an 84% margin, net leverage near zero, and billions in trailing free cash flow and an active buyback. The question the market is asking is whether the pause was a blip or the first sign the engine cannot keep climbing. Management says the former, and the third-quarter guide — 46–48% year-over-year revenue growth, a step down from 53% — is the near-term test.

Reddit fell on the ground beneath it.

Reddit's quarter was cleaner on the surface. Revenue rose 61% in the second quarter, its eighth straight quarter above 60%, with earnings of $1.25 a share that beat and guidance that landed above expectations. The stock fell 21% on the report, its worst single-day move since going public. Same chart, opposite cause.

Reddit's problem is not the business — it is the traffic the business runs on. The platform reaches hundreds of millions of weekly users, and a meaningful share of its audience finds it through search. As AI reshapes discovery — Google folding AI Overviews into results and pushing its Gemini assistant, ChatGPT pulling answers and citing Reddit — the referrals that feed the platform have turned "choppy," in CEO Steve Huffman's word, and hard to see. In the same quarter, the user base did what the market had hoped it wouldn't: the fast-growing users were the anonymous, lower-value ones. Logged-out daily users grew 27% year over year; the logged-in users many consider the platform's most profitable grew just 7%. U.S. daily users, the figure advertisers care most about, came in slightly under expectations.

The AI side of Reddit is two-headed. It sells its data — OpenAI and Google are its two largest licensing partners — but the "other revenue" bucket that holds licensing grew only 24% in the quarter, and no new AI deal was announced, an absence that helped sink the stock. Meanwhile the same AI forces quietly undermine the search distribution that feeds the ad business. Reddit is being paid by AI at the same time AI redirects the traffic it depends on. The missing contract was the immediate trigger; the structural shift underneath is the live question.

The discount tells you which risk is priced which way.

This is where the two stop being the same kind of trade. AppLovin's risk is internal and within the company's control — an execution cadence it can recover with its own models. Reddit's is external and largely outside its control — a distribution shift it is reacting to. History does not guarantee the internal one recovers, but it is the one a company can actually fix, which is why roughly 19.5x EBITDA on an 84%-margin machine is the cheaper of the two. Reddit's structural search exposure, by contrast, trades at about 33x EBITDA, a premium that assumes the transition from search-driven to direct users works out. That premium is the expensive assumption.

I would frame it plainly. AppLovin is the better buy if you believe the model pause was transient and a discounted, hyper-marginal engine can reaccelerate on its own schedule. Reddit is the better buy only if you can underwrite search-referral volatility normalizing — which is the one thing management just told you it cannot see. The market has fully digested both stories, and each discount now compensates for the specific failure it fears. Choose on that basis — which risk you can stand the noise of — rather than on which ticker fell farther.