Reddit: Selloff After S&P 500 Inclusion Is Mechanical — But the Forward Multiple Still Demands Proof

Reddit: Selloff After S&P 500 Inclusion Is Mechanical — But the Forward Multiple Still Demands Proof

The Reddit (RDDT) selloff that has erased more than 13% of the stock over the past five trading days is not a story about broken business fundamentals. It is the predictable mechanics of an event-driven trade unwinding once forced index buying is complete. That said, the pullback has not created a bargain either. Reddit's forward P/E sits at 128x earnings. Even with revenue growing at 60% plus and margins expanding, that multiple requires flawless execution for the next two years.

The gap between the stock's current price and its analyst consensus price target of roughly $215 is now wide enough to make a position at these levels interesting for patient investors. But only if you can tolerate the Google search traffic headwind and the rich forward valuation hanging over the trade.

What Just Happened

S&P Dow Jones Indices announced on August 13 that Reddit would join the S&P 500 effective August 18, replacing AvalonBay Communities. The news triggered a textbook index-inclusion rally. Shares surged roughly 13% the next day as index-tracking funds prepared to absorb the position. J.P. Morgan estimated that passive funds would need to purchase approximately 16.7 million Reddit shares — nearly three times the company's average daily volume since its March 2024 IPO.

Once the rebalancing window closed, the forced demand disappeared. The stock gave back its gains, dropping roughly 7.7% on August 17 and shedding more than 11% across the Monday-Tuesday trading session as the mechanical buying pressure faded. Over the five-day window from the August 14 peak, the stock is down 13.9%.

This is standard behavior for index-inclusion trades. Stephens analyst Melissa Roberts has documented that new S&P 500 members tend to outperform from announcement through inclusion — with the biggest moves coming right after the news — but then lag the broader index by approximately 2% during the three months that follow. The profit-taking clock was always ticking.

The Business Story Is Still Intact

The selloff has nothing to do with an earnings miss. Reddit's second-quarter results, reported on July 30, were strong across the board. Revenue jumped 61% year-over-year to $805 million, well above the $730 million consensus estimate. That marks the eighth consecutive quarter with revenue growth exceeding 60%. Diluted EPS came in at $1.25, beating the 95-cent estimate. Adjusted EBITDA — earnings before interest, taxes, depreciation, and amortization, a rough proxy for cash earnings — reached $343 million, a 43% margin, up 106% from a year earlier.

Gross margin expanded to 91.3%, up 50 basis points year-over-year. Free cash flow hit $261 million, up 135%. The company ended the quarter with $2.79 billion in cash and no debt burden of concern.

User growth remains solid. Daily active unique users grew 18% year-over-year to 130.3 million. Weekly active uniques crossed the half-billion threshold at 514.6 million, up 24%. International daily active users grew 28% while U.S. daily active users grew 6%. Average revenue per user climbed 36% globally to $6.18, with U.S. ARPU surging 51% to $11.85.

Management guidance for the third quarter — revenue of $860 million to $870 million and adjusted EBITDA of $385 million to $395 million — also exceeded analyst expectations.

In short, the operating engine is humming. The selloff is not about earnings power.

The Google Headwind Is Real

The real overhang is not the S&P 500 inclusion trade winding down. It is the search traffic problem CEO Steve Huffman described as "choppy" during the earnings call.

Google's rollout of AI Overviews has fundamentally changed how search users interact with content. Where the traditional "10 blue links" model drove click-through traffic to source sites, AI-generated summaries answer questions directly in the search results page. A Pew Research study found that when AI Overviews are present, users click traditional search results only 8% of the time, compared to 15% without them. Organic traffic to major publishers has collapsed: Business Insider saw a decline of more than 85%, USA Today roughly 50%, and CNN around 25% between June 2025 and June 2026.

Reddit is not immune. Huffman told CNBC that Google's AI Overviews have "yet to generate similar positive value" to the old blue-link ecosystem. Reddit and several other major publishers are considering restricting Google's access to their content as the licensing renewal — a 2024 deal worth approximately $60 million annually — comes up for negotiation. The company is seeking what Huffman called a "win-win" arrangement but has acknowledged it has not found one yet.

This matters because search referrals have historically been a key user acquisition channel. If referral traffic continues to erode, Reddit will need to shift more spending toward direct acquisition through its app and feed recommendations, which could pressure the low-spend cost structure that makes its margin profile so attractive. Capital expenditures were only $1.1 million last quarter, which is remarkable but also suggests the company is not yet building heavy infrastructure to compensate for search declines.

The data licensing revenue from Google and OpenAI grew 24% to $43 million last quarter, which provides a partial offset. But licensing is a small slice of total revenue, and the broader question is whether AI-driven search permanently shrinks the organic user flow that feeds Reddit's ad-supported model.

Valuation: The Multiple Is Working Against You

Here is where the investment case gets tricky. The stock's trailing P/E is 34x on trailing twelve-month earnings. That looks manageable if you focus on the 61% revenue growth and 43% EBITDA margins. The PEG ratio — which adjusts the P/E for growth rate — sits at just 0.34, which superficially screams bargain.

But the forward P/E is 128x. That is the number that matters if you are holding this stock through the next earnings cycle. It means the market is already pricing in years of flawless execution: continued 60% revenue growth, margin expansion, user acquisition without a search traffic collapse, and a smooth Google licensing renewal. Any one of those assumptions slipping would pressure the multiple.

The enterprise value of $26.7 billion sits at 9.6x trailing sales and 32.7x EV/EBITDA. Compared with Meta, which dominates the social media ad space and generates far more free cash flow, Reddit's multiples are stretched. Even compared with smaller internet ad platforms, the forward pricing is aggressive.

The current price of $153 is roughly 35% below the average analyst price target of $215. Of the 33 analysts polled, 21 rate the stock a Buy, 11 a Hold, and one a Sell. That analyst consensus implies significant upside. But price targets from bulls often assume the current growth trajectory continues uninterrupted, and they are slow to adjust downward when the headwind is structural rather than cyclical.

The Risk/Reward Picture

The 14% decline over the past five days has not transformed Reddit into a cheap stock. But it has created a cleaner entry than the post-inclusion peak, where the mechanical buying had already done the heavy lifting. An investor buying today is not paying the index-event premium.

The bull case rests on three pillars: (1) the ad business continues growing at 60% plus as brand advertisers expand on the platform, (2) the company converts web traffic into direct app usage fast enough to insulate against search referral decline, and (3) the Google licensing renewal produces acceptable terms without triggering a broader traffic war. The Q3 guidance, which beat estimates, suggests management is confident on all three.

The bear case is simpler: the forward multiple at 128x leaves almost no margin for error. If Google search referrals keep deteriorating, if the licensing renewal falls apart, or if user growth slows below 15%, the stock gets squeezed from both the multiple compression and the growth narrative breaking. At 42% below its September 2025 intraday high of $283, this is not a stock trading on perfect expectations — but the forward valuation still demands it deliver on them.

Rating: Hold — Wait for a Cleaner Entry or a Traffic Resolution

I would classify Reddit as a Hold at current levels. The growth story is genuine, the margins are expanding, and the cash generation is impressive for a company that went public less than two years ago. The recent selloff is mechanical, not fundamental.

But the forward P/E of 128x is a wall. It is not something you ignore even when the earnings beats are this big. A stock priced for perfection deserves a reason to believe nothing will go wrong, and the Google search traffic question is the open wound.

A more compelling entry would come from one of two paths: a deeper pullback toward the $120-$130 range, where the valuation gap to analyst targets becomes more attractive, or a clear signal that management has resolved the Google licensing situation and that direct traffic is compensating for referral decline. The third-quarter guidance and the upcoming Q3 earnings report — expected sometime in early to mid-October — will be the first real test of whether search traffic has stabilized or is still sliding.

Until then, the risk/reward at $153 is tilted just enough toward patience. The business is growing fast. The multiple is working against you. Wait for either the price to come down or the search question to get answered.