Shares of Google’s parent company experienced a decline exceeding 12% on Thursday, marking the most significant drop in its history – a single-day decrease surpassing any recorded during the Covid-19 pandemic or the 2008 financial crisis. The drop erased roughly half a trillion dollars in Alphabet’s market value, marking the second-largest single-day wipeout in history, following Nvidia’s nearly-$600 billion slide in early 2025. Investors are placing heightened scrutiny on the AI expenditure of Big Tech and its implications for their own enterprises, with Alphabet emerging as the most recent focus of attention. The company’s shares experienced a significant decline as investors expressed concerns regarding the deceleration in growth within Google’s search advertising sector, coinciding with an ongoing increase in expenditures on AI. The world’s largest technology companies are investing hundreds of billions of dollars in the construction of data centers, competing to secure a position among the frontrunners of the artificial intelligence boom.
Wall Street is adopting a more cautious stance, striving to discern which companies are engaging in rational spending, how those expenditures are influencing other facets of their operations, and identifying the entities that will genuinely reap the benefits of AI’s transformative effects on society. Alphabet reported quarterly sales figures on Wednesday that fell short of analysts’ expectations. Investors expressed disappointment over the shortfall in sales figures, which rekindled enduring worries regarding the sustainability of the company’s primary revenue source – Google’s search advertising business – amid the growing trend of consumers opting for Google’s own AI chat bots, as well as those from competitors, instead of conventional search methods. The concern is that this displacement could occur “faster than Google can react to it and pivot their business,” stated Jed Ellerbroek. The company also disclosed a second consecutive quarter of negative free cash flow, a metric that raises further concerns among investors. Since its initial public offering in 2004, Google – rebranded as Alphabet in 2015 – had not recorded a single quarter of negative free cash flow until this year. Robust free cash flow serves as an indicator of a company’s financial health, enabling it to distribute dividends, engage in share repurchases, and reinvest in its operations.
Alphabet recorded $51.4 billion in capital expenditures in the third quarter alone, compared to $91.4 billion for the entire year in 2025. As the company increases its investment in AI, particularly in data center construction, it is allocating less capital toward the immediate returns that investors typically favour, such as share buybacks and dividends. In a notable divergence from Alphabet’s negative free cash flow, Microsoft disclosed this week that it achieved $18.6 billion in free cash flow during the third quarter, despite ongoing substantial investments in its AI development. Microsoft’s shares concluded the day unchanged on Thursday, whereas Alphabet shares experienced a decline exceeding 12%. “We are now getting to see who is spending rationally on AI and who is not,” said Richard Reyle. It may appear peculiar that the stock of one of the largest firms in Big Tech has not experienced a surge following Anthropic’s submission of its eagerly awaited initial public offering prospectus just days ago. Anthropic is making a substantial financial commitment to lease computing power from technology firms such as Alphabet.
However, that prospective future is not assured, particularly if the data center expansion does not proceed as anticipated or if artificial intelligence fails to yield the expected profitability. Alphabet is urging investors to have faith in its vision for artificial intelligence and the expansion of its data centers, while simultaneously seeking to capitalise on AI and demonstrate its potential to yield substantial returns from this technology. Growth in Big Tech companies’ cloud computing divisions indicates that demand for AI remains strong. However, the market remains apprehensive regarding any potential setbacks that could hinder the AI boom. Major technology firms such as Alphabet are increasingly seeking to leverage debt and financial markets to secure additional capital to support their strategic objectives. While companies assert their efforts to meet demand, the competition for investor capital is intensifying. “Everybody is trying to get through the door at the same time, and it gives people pause,” said Ted Mortonson. Wall Street is increasingly uneasy regarding the data center expansion, and firms that are depleting their free cash flow are facing repercussions.
