Alphabet Stock Plummets, Wiping Out Over $500 Billion Amid AI Investment Concerns
Google's parent company experienced one of Wall Street's largest ever single-day value drops as investors reacted to increased AI spending and a slowdown in its core advertising business.

Alphabet, the parent company of Google, saw its market value plummet by more than £400 billion (approximately $500 billion) in a turbulent trading session, marking one of the most significant stock market routs in history.
The tech giant's shares plunged nearly 14% in early trading on Thursday, driven by investor concerns over its substantial investments in artificial intelligence infrastructure, including data centers. This dramatic fall represented the second-largest daily loss in market value on Wall Street, trailing only Nvidia's £450 billion slump in January of the previous year. The value lost by Alphabet in this single session is equivalent to the combined market capitalizations of London-listed companies AstraZeneca, Rolls-Royce, and Unilever.
Despite the significant drop, Alphabet's valuation remained substantial, estimated at around £2.5 trillion, which is roughly ten times the market capitalization of Shell, the largest company on the UK stock market.
The sell-off contributed to a nearly 2% decline in the tech-heavy Nasdaq index, fueling renewed fears that the AI-driven stock market boom could be headed for a downturn. This market movement is expected to impact millions of British savers who have exposure to the US stock market through their ISAs and pensions.
Investor strategists noted the severity of the drop, with one stating that such a decline "blows a big hole in all the major indices." The sentiment suggests that investors are increasingly looking for tangible returns on capital expenditures, not just the investments themselves.
The market reaction followed Alphabet's latest quarterly earnings report. The company announced a 25% increase in revenues to £95 billion for the three months ending September 30. However, this figure fell short of Wall Street's expectations. Profits declined by a quarter to £20 billion, largely due to a nearly £40 billion increase in AI-related spending.
Furthermore, Alphabet revealed that its primary advertising business is facing pressure from the growing adoption of 'AI Mode,' a new chatbot service integrated into Google Search. The company is still in the experimental phase regarding advertising within this new feature.
Analysts highlighted the challenges of funding extensive AI initiatives while maintaining the strength of established business lines. The weakness observed in Google's core search advertising business, coupled with substantial cash burn for AI development, has caused considerable disquiet among investors. Doubts persist in the market regarding the long-term viability of Alphabet's comprehensive strategy, which includes developing its own chips, data centers, and large language models.