Here is the sentence that explains Reddit's week, said by its chief executive on the earnings call:
"Google is crawling us as hard as ever, so the demand hasn't changed from their point of view either."
Google still wants everything Reddit writes. It just stopped sending people to read it.
In October, search referrals to Reddit fell by more than a million visits per week, on average. Not a million total. A million a week, and the rate was accelerating through the quarter.
So Reddit announced it will start requiring people to log in. It will test a logged-in-only experience in selected markets outside the United States this quarter, and use what it learns to decide about rolling it out everywhere. After roughly twenty years of anyone being able to read a Reddit thread without an account, that would end.
The stock fell about 28% on Thursday and Friday, its worst stretch since it went public in March 2024.
And the quarter itself was excellent. Revenue up 53%. Earnings per share up 75%. Both beat what analysts expected.
We wrote this week about why companies fall on good earnings. This is the sharpest example of it, and the mechanism underneath is bigger than one company.
What actually happened to the traffic
To understand this you need one idea, and it is the foundation of how most of the internet gets paid.
Referral traffic is someone arriving at a website from somewhere else, usually a search engine. You type a question into Google, Google shows you a list, you click one, and you land on a website. That click is the entire transaction underpinning the open web: the site gives Google something to index, and Google sends it readers.
Reddit was unusually dependent on this. Its content is other people's conversations, and those conversations answer exactly the kind of specific, human question people bring to a search engine.
Then Google changed what it does with the answer. Rather than showing a list of links, it increasingly reads the pages itself and writes an answer directly on the results page. The user reads it and never clicks.
Reddit's chief executive put the consequence plainly: "The reality is, the AI mode does not drive traffic, not for us and not to anybody, as far as I know."
Note the shape of that. Google's demand for Reddit's content has not fallen. It is crawling as hard as it ever did. What collapsed is the return trip. The content still gets used. The reader does not arrive.
That is a genuinely new problem. For twenty-five years the arrangement was that search engines took your content and paid you in visitors. One side of that trade is now optional.
The two kinds of user, and why one is worth far more
Reddit reports its audience in two buckets, and the split is the entire story.
Logged-out users show up, read something, and leave without an account. Reddit knows almost nothing about them. It cannot tell an advertiser who they are, what they were looking at last week, or whether they have seen this ad before.
Logged-in users have an account. Reddit knows what they subscribe to, what they engage with, and can build an advertising profile.
Last quarter Reddit had about 53.5 million logged-in daily users and about 76.8 million logged-out. So most of its daily audience is anonymous.
But logged-in users account for more than 80% of the money.
Now look at which group is moving. Logged-in daily users grew to 53.5 million from 52.6 million. Logged-out users fell, to 76.8 million from 77.7 million. Across the whole base, daily users came in at 130.3 million, up 12% from a year earlier but flat against the prior quarter.
And in the United States, Reddit's most valuable market, daily users fell 2% from a year earlier to 50.7 million, down from 53.2 million three months before. That is the first US decline since the company listed.
Here is the part that makes the strategy coherent. The users disappearing are mostly the anonymous ones arriving from search. They are the least valuable users Reddit has. So the business impact of losing them is much smaller than the headcount suggests, which is exactly why revenue grew 53% in a quarter when the audience stopped growing.
You can see it in the money per user. The measure is called average revenue per user, and it is exactly what it sounds like: total revenue divided by the number of people who showed up. It is the cleanest way to separate "more people came" from "we got better at making money from the people who did."
Reddit's rose 36% globally and 53% in the United States, to $13.82 per American daily user against $2.43 internationally. So it is earning considerably more from a slightly smaller American audience, and the gap between those two figures explains why losing an overseas reader costs the company roughly a fifth of what losing an American one does.
It is also worth seeing how profitable this has become, because it changes how much time the company has. Net income was $283 million, up 74%. Adjusted earnings before interest and other items were $402 million at a 44.9% margin. Free cash flow was $363 million, nearly double last year. Gross margin is 91.5%.
A business throwing off that much cash, holding about $3 billion, can afford to run an experiment that costs it users for a few quarters. A thinner one could not.
So why does a login wall help?
Three reasons, and only one of them is about advertising.
It converts anonymous readers into known ones. Some share of people hitting a wall will make an account rather than leave. Every one of those moves from the low-value bucket to the high-value bucket.
It makes the audience Reddit's own. A user who arrives from Google belongs to Google. A user with an account comes back directly. That is the difference between renting your audience and owning it.
And the stated reason is neither of those. Reddit says the point is to deter automated systems from scraping its content for free.
That deserves unpacking, because it is the part most people have not followed. Reddit's archive of human conversation turns out to be unusually valuable for training artificial intelligence systems, precisely because it is people explaining things to each other in ordinary language rather than polished marketing copy. Reddit now charges for access to it under commercial licensing agreements, and it has sued several companies it says took the material without paying.
So the company is in two businesses at once with the same asset. It rents the content to machines, and it rents the readers to advertisers. A login wall helps the first business by putting a gate in front of anything a scraper wants, and it helps the second by converting anonymous visitors into identified ones. Those two motives point the same direction, which is probably why the decision was made now rather than two years ago.
One honest limit: Reddit does not disclose what the licensing business earns. There is a line called "other revenue" at $48 million, up 35%, and licensing sits somewhere inside it alongside other things. Nobody outside the company can size it.
Its chief operating officer framed the trade directly: it could limit reach in the short term, but it is "a trade that makes sense for the long term."
The risk is obvious and an analyst named it immediately. Requiring a login "creates another barrier to engagement, particularly for casual users." Every friction point costs you people. The question is whether the ones you keep are worth more than the ones you lose, and nobody knows that yet because the test has not run.
What the company actually guided to
This is what did the damage, and it is one sentence.
Reddit told shareholders that daily users could fall in the fourth quarter by a low-double-digit percentage from roughly 130 million.
Read that again. A business whose revenue comes from advertising, telling investors it may lose something like a tenth or more of its daily audience in three months.
The revenue guidance was $1.00 billion to $1.03 billion, described as roughly in line. The profit guidance was not: adjusted earnings before interest and other items were guided to $480 million to $510 million against roughly $512 million expected, so the entire guided range sat below the forecast.
So the structure of the quarter is now familiar if you read Thursday's issue. The reported figures were excellent and backward-looking. The forward figures were worse than hoped. The market trades the forward figures.
What is different here is the kind of forward number. A revenue guide is an estimate of money. A user guide is an estimate of whether people still show up, and for an advertising business that is upstream of everything else. You can fix a revenue miss by charging more. You cannot fix an audience that left.
What the analysts did, and why it matters this week
All week we have been pointing out that firms were cutting their twelve-month estimates while refusing to change their actual recommendations. That pattern broke here.
Three firms downgraded Reddit outright. Oppenheimer, Citizens and KeyBanc all moved their ratings down, citing uncertainty about the logged-in shift and Reddit's relationship with Google. One warned that worsening search traffic could hit profits in 2027 and 2028.
The estimate cuts were severe on top of that. One firm went from $300 to $150, cutting its number in half.
That distinction is worth holding onto. Across this week's wreckage, analysts downgraded their recommendations where the mechanism broke, and held them where only the price broke. ServiceNow fell 27% and nobody downgraded it. Reddit fell 28% and three firms did.
The difference is that ServiceNow's problem was an accounting metric decelerating by two and a half points. Reddit's problem is that the pipe supplying its audience is being closed by a company it does not control.
What this does not tell you
It does not tell you Reddit is shrinking. Weekly users grew 16% to 515 million. Logged-in daily users grew. Revenue grew 53%, free cash flow grew 98%, and the company holds about $3 billion in cash and securities. What stalled is one specific category of visitor.
It does not tell you the login wall will work. It has not been tried. The test runs this quarter in markets outside the United States, which are the lowest-value ones, which is a sensible place to experiment and also means the results will not tell you much about the American business.
It does not tell you Google did this deliberately to Reddit. There is no evidence of that and no reason to think it. Google changed a product that billions of people use, and the consequences landed on everyone who depended on the old behavior. Reddit is simply the clearest case because it discloses its traffic in public every quarter.
And it does not tell you this is only Reddit's problem. It is the opposite. Every publisher, recipe site, forum, review site and reference page on the internet is in the same position: content still consumed, traffic no longer delivered. Most of them do not have a login wall to retreat behind, an advertising business making a billion dollars a quarter, or the option of charging artificial intelligence companies for the material directly.
Reddit is the one you can see because it is public and discloses the numbers. It is not the one most exposed.
What this week offers is a question to ask about any business that depends on somebody else's platform for its customers. Not how many people show up, but who decides whether they show up. If the answer is a company you do not control, operating a product it can change without telling you, then your audience is rented. The rent can go up, and it can also simply stop being available.
That habit of asking where something actually comes from is why we show the workings. Techdamentals runs four separate valuation methods and displays the full range, because a single number tells you where somebody landed and nothing about what it depends on.