Reddit Stock Plunges 25% as Google AI Overviews Break Its Search-Traffic Engine

Reddit (NYSE: RDDT) shares collapsed approximately 25 percent to a new 52-week low on Friday after the social media company's third-quarter 2026 earnings report revealed the first year-over-year decline in U.S. daily users since its March 2024 IPO — and CEO Steve Huffman disclosed that the deterioration is continuing into the current quarter, with Google search referrals falling by more than one million visits per week on average in October.

The shares, which closed near $129 on Thursday before results were released, opened Friday around $95 to $96 and set a new 52-week low before the opening bell. From their $263.50 peak roughly a year ago, Reddit shares have declined more than 60 percent.

The Quarter That Should Have Been Enough

Reddit's Q3 financial results were, by any conventional measure, a strong beat. Revenue came in at $895 million, 53 percent higher than the prior year and ahead of the company's own guidance of $860 to $870 million and the Wall Street consensus near $886 million. Adjusted EBITDA reached $402 million at a 45 percent margin, up 70 percent year-over-year. Diluted GAAP earnings per share were $1.40, 75 percent above the year-ago quarter. Operating cash flow nearly doubled to $364 million, and Reddit ended the quarter with $3.0 billion in cash.

The stock fell 25 percent anyway. Three data points overrode the financial beat.

User Growth That Has Inverted in the U.S.

Total daily active unique visitors (DAUq) reached 130.3 million in Q3, a 12 percent year-over-year gain that would ordinarily pass without comment — except that analysts had projected 133 to 134 million, and 130.3 million is the exact figure Reddit reported in Q2 2026. Over the summer, headline user count grew by zero. The year-over-year growth rate decelerated from 18 percent in Q2 to 12 percent in Q3, a six-point drop in one quarter.

The U.S. figure is the specific data point that alarmed investors. U.S. daily active users totaled 50.7 million in Q3, a 2 percent decline from 51.6 million a year earlier — the first reported year-over-year contraction in domestic users in Reddit's public history. The United States matters disproportionately because Reddit's average revenue per daily unique in the U.S. reached $13.82 in Q3, roughly double the $6.87 global average. International daily active users grew 24 percent to 79.6 million, a strong result that compensated financially for the domestic erosion — for now.

Reddit noted that its logged-in DAUq and app DAUq, the more engaged and monetizable subset, grew quarter-over-quarter in both the U.S. and internationally. But the headline number captures what investors see as the structural story.

How Google AI Overviews Intercept Reddit's Front Door

Reddit's logged-out user population — roughly half its total audience — arrives predominantly via Google search. A user who types "best hiking boots for wide feet reddit" into Google and clicks through is a logged-out user. Those sessions generate the top-of-funnel traffic Reddit converts, over time, into account signups and engaged community members. Google's AI Overviews have restructured that funnel at its source.

When Google AI Overviews generate a synthesized answer, they frequently cite Reddit thread content as source material. Analytics firm Semrush documented in mid-2025 that Reddit was the second most-cited source in Google AI Overviews globally, trailing only Quora. The practical consequence is the opposite of what "cited" implies: AI Overviews answer the user's question on the search results page using Reddit content, and the user need not click through to Reddit at all.

This distinction — between being cited and receiving traffic — is the mechanism behind Reddit's declining logged-out user count. Huffman was specific on the earnings call: Google search referrals fell by more than one million visits per week on average in October, a figure he presented as a forward indicator for what Q4 user metrics may show.

Jefferies analyst John Colantuoni captured the dynamic directly: "RDDT's delivery of strong Revenue/EBITDA growth (53%/70%) was overshadowed by worsening U.S. DAU declines, as increased prevalence of AI Overview negatively impacted referral traffic." KeyBanc Capital Markets downgraded Reddit from Overweight to Sector Weight, estimating a potential low-double-digit sequential decline in Q4 user metrics and warning the traffic headwind was "larger than envisioned."

This is structurally different from the algorithm changes Reddit weathered in prior years. In 2023 and 2024, Google search updates favored Reddit in traditional link results, generating a referral surge that analysts at Redburn Atlantic, in prior coverage, characterized as a temporary benefit the platform would not permanently retain. AI Overviews do not simply de-rank Reddit; they answer queries without routing users at all. SEO optimization cannot recover a traffic source that has been replaced rather than displaced.

The Dual-AI Trap: Data Supplier and Traffic Casualty

Reddit occupies a position unique in the current AI landscape. It sells the training data that powers the AI systems reducing its own audience. Since 2024, Reddit has held licensing agreements with Google and OpenAI granting access to its API and historical conversation corpus — the authentically unfiltered record of what millions of people actually say about virtually every topic. In Q3 2026, "Other" revenue, which Reddit has attributed primarily to data licensing arrangements, came in at $48 million, up 35 percent year-over-year.

Both agreements are expected to expire in 2027. Huffman has signaled intent to renegotiate toward dynamic, usage-based pricing that scales with actual data consumption. When an analyst on the Q3 call raised the possibility that Reddit might not renew the deals with Google and OpenAI, Huffman did not rule it out.

The structural problem is that the two sides of Reddit's AI position are not separable. Reddit's conversation data is valuable precisely because it is authentic, high-volume, and topically broad — qualities that make it irreplaceable for training conversational AI. But the AI systems trained on that data are now the mechanism reducing the search referrals Reddit depends on to grow its logged-out audience. Reddit funds the capability that shrinks its front door.

The scale of that erosion is meaningful at the margin. A 2 percent domestic user decline — from 51.6 million in the year-ago quarter to 50.7 million in Q3 — removes approximately 900,000 users from Reddit's premium advertising tier, each generating roughly $13.82 per quarter in average revenue.

Reddit's Strategic Counter: Gate the Surface, Build the App

Reddit disclosed two strategic responses to the logged-out traffic problem. The first is architectural: the company said it would test a logged-in-only experience for users browsing outside the United States, requiring account sign-in before content is accessible. This eliminates the intercept surface — a visitor who must log in cannot be satisfied by a SERP answer before clicking through.

The tradeoff is substantial. Logged-out users represent roughly half of Reddit's total audience. Reddit's data shows the conversion is improving: logged-in and app DAUq grew sequentially even as headline users stagnated.

The second response is Reddit Answers, an AI-powered feature built into the Reddit app that surfaces community-sourced responses to user queries inside Reddit's own environment. Architecturally, it attempts to replicate the discovery function Google previously provided externally — routing users to relevant Reddit threads without the Google intermediary. If a meaningful share of users satisfies information queries through Reddit Answers rather than via Google, those sessions stay on platform, generate ad impressions, and convert casual intent into account engagement. The challenge is app acquisition at the scale required to compensate for search referral loss.

Q4 Guidance Misses and What the 2027 Renegotiation Will Test

Reddit's Q4 2026 revenue guidance of $1.0 billion to $1.03 billion — midpoint $1.015 billion — landed approximately $30 million below the Wall Street consensus of $1.046 billion. Adjusted EBITDA guidance of $480 million to $510 million reflected continued margin expansion, but the revenue miss, combined with the October referral data Huffman volunteered on the call, confirmed that the Q4 user deceleration is expected to continue.

Reddit shares settled down approximately 26 percent on the session, closing near $95 and establishing a new 52-week low — more than 60 percent below the $263.50 peak.

The most consequential near-term milestone is not another quarterly earnings report but the 2027 AI licensing renegotiation. If Reddit retains and reprices the Google and OpenAI deals under dynamic usage-based terms, it gains revenue leverage over the companies profiting from its data — and potentially a contractual mechanism to negotiate conditions on how that training data is deployed. If the negotiations fail or Reddit walks away, it loses the $48-million-per-quarter licensing line while gaining no relief from AI Overviews, which will continue operating on models already trained. The 2027 renegotiation will determine whether Reddit can convert its role as the internet's most cited AI training corpus into bargaining power — or whether it remains simultaneously indispensable to AI companies and economically exposed to their products.