Alphabet Loses Half a Trillion Dollars in Historic Market Drop
Everybody is trying to get through the door at the same time, and it gives people pause,
Ted Mortonson, an investment strategist at Baird who focuses on the tech sector, said regarding the current wave of artificial intelligence spending.
Alphabet shares tumbled 13% following a disappointing quarterly update released late Wednesday, resulting in the worst single-day drop in the company’s history. The selloff erased roughly half a trillion dollars in market value, dragging the Nasdaq down 1.4% for the session. The S&P 500 dropped 0.3%, while the Dow industrials fell 0.3%, pressured by a 9% decline in Caterpillar following a revenue miss.
Search Advertising Pressures and AI Spending Concerns
The historic decline stems from slowing growth in Google’s core search advertising unit coinciding with surging capital expenditures on artificial intelligence infrastructure. Alphabet reported third-quarter search revenue of about $63 billion, missing Wall Street estimates of roughly $65 billion. The shortfall is due partly to the rising popularity of less-profitable AI mode searches that displace traditional ad-supported queries.
Investors are scrutinizing whether Google’s core business can withstand consumers shifting to AI chatbots. Jed Ellerbroek, portfolio manager at Argent Capital Management, said that the fear is this displacement might happen faster than Google can react to it and pivot their business.
Negative Free Cash Flow and Capital Expenditures
Alphabet disclosed its second consecutive quarter of negative free cash flow, swinging to a loss of about $9 billion as AI investments climbed. Prior to this year, the company had not posted a single quarter of negative free cash flow since going public in 2004. Capital expenditures reached $51.4 billion in the third quarter alone, compared to $91.4 billion for the entire year in 2025.
The heavy spending on data center construction leaves less capital for share buybacks and dividends. Richard Reyle, chief investment officer at Questar Capital Partners, said that we are now getting to see who is spending rationally on AI and who is not,
contrasting Alphabet’s cash burn with Microsoft’s reported $18.6 billion in free cash flow for the third quarter.
Contrasting Fortunes Across Big Tech
While Alphabet absorbed its steepest post-earnings drop ever, other major cloud providers reported mixed results amid high AI costs. Microsoft shares ended flat following its financial report, whereas Amazon experienced increased post-market pressure after reporting record cash burn and faster cloud growth. Pivotal Research CEO Jeffrey Wlodarczak said that bears will argue this marks the first quarter where AI begins to seriously hurt the search business, while CFRA’s Angelo Zino characterized the pullback as a potential buying opportunity.
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