Google’s AI Search Creates a Traffic Challenge

Reddit shares plunged 29% on Friday after the company warned that Google’s AI-powered search experience was reducing referral traffic and could affect its user base. The decline represented the stock’s largest single-day loss and brought shares to their lowest level in more than a year.

Although Reddit continues to appear in Google search results, fewer users are clicking through to the platform. Google’s AI tools increasingly provide direct answers, reducing the need for users to visit the original websites where relevant discussions and information are hosted.

The shift raises a broader question about the value of search visibility when AI-generated responses can satisfy user queries without generating visits to the underlying platforms.

Market specialist Vitor Madeira of Capital.com said the loss of more than one million search referrals per week could lead investors to reassess not only Reddit’s near-term performance but also the long-term strength of its audience.

Fourth-Quarter User Outlook Raises Concerns

Reddit warned that its daily active unique visitors could fall by a low double-digit percentage in the fourth quarter if referral traffic continues to decline.

The warning has increased uncertainty around the platform’s ability to sustain user growth. Search referrals have been an important source of discovery, and a sustained reduction could affect how new users find Reddit and engage with its communities.

The issue extends beyond Reddit. News publishers, educational platforms such as Chegg, and travel and product-review websites are also facing pressure as AI-powered search changes how users access online information.

The developments point to a growing challenge for businesses that depend on external search traffic to attract audiences.

Pinterest Also Faces Earnings and Growth Pressure

Pinterest shares fell nearly 8% after the company missed analyst estimates for third-quarter revenue and profit. Its revenue forecast for the important holiday quarter also came in below expectations.

If Friday’s losses hold, Reddit is set to lose more than $7 billion in market value, while Pinterest could lose approximately $900 million.

Both companies have already experienced substantial declines during the year. Through their previous closing prices, Reddit shares were down approximately 44%, while Pinterest had fallen about 23%.

According to LSEG data, Reddit’s 12-month forward price-to-earnings ratio stood at 19.03, compared with 7.53 for Snap and 8.48 for Pinterest. The valuation comparison adds another consideration for investors assessing Reddit’s growth outlook amid increasing competitive and distribution pressures.

Google Partnership Continues Despite Search Disruption

Separately, Reddit announced on Friday that it had extended its cloud services agreement with Google through 2029. The agreement commits Reddit to spending $580 million over three years.

The extended partnership highlights the relationship between the two companies even as Google’s AI search tools create challenges for Reddit’s referral traffic.

Google is also facing questions about the commercial returns from its AI-powered search investments. Search revenue growth slowed to 12% in the September quarter, while Alphabet shares suffered a major decline on Thursday that erased approximately $500 billion in market value.

What Investors Should Watch Next

Reddit’s ability to maintain user engagement and reduce its dependence on traditional search referrals will be central to its outlook. The fourth-quarter visitor figures should provide a clearer indication of whether Google’s AI search changes are producing a temporary disruption or a more sustained challenge to audience growth.

Investors will also be watching how other digital platforms respond to declining referral traffic and whether AI-generated search experiences continue to reshape the economics of online publishing, education, travel and consumer research.