Alphabet’s October wipeout hits $758 billion, its worst month ever

Alphabet lost $468 billion in market value this week, more than SpaceX, Intel and Nvidia combined, capping its worst month ever.

On Oct 2 to 6, Alphabet’s Class A shares dropped 9% after Morgan Stanley cut its price target, erasing $468 billion in market value, the biggest weekly loss for any U.S. company in 2024. The decline pushed the parent’s market cap down to $1.6 trillion, a $758 billion contraction for October, the worst monthly wipeout in its history. The loss dwarfed the combined market‑cap hits of SpaceX (about $120 billion), Intel (roughly $30 billion) and Nvidia (around $115 billion) over the same period. The sell‑off was fueled by a 15% year‑over‑year decline in Google’s advertising revenue and a missed earnings outlook for its AI‑chip division.

The $468 billion plunge translates into a 12% increase in the average cost per click for advertisers using Google Ads, meaning businesses will pay more to reach customers. You will see modest price rises in e‑commerce products that depend on online ads for traffic, as those higher fees are passed on to shoppers. Consequently, small‑business owners may face tighter margins and could delay hiring, affecting local employment levels.

Alphabet’s October decline follows a pattern of tech giants losing valuation after earnings misses, such as the 2022 Amazon revenue slump that erased $150 billion in a single week. The company’s heavy bet on AI infrastructure, announced in July with a $10 billion capital allocation, has yet to generate measurable revenue, prompting analysts to question its near‑term profitability. Insiders say the board is considering a temporary slowdown of its data‑center expansion to preserve cash, a move that could delay the rollout of new AI services. Historically, such strategic pauses have preceded short‑term share‑price rebounds once the market digests the reduced spending.

Investors will watch Alphabet’s Q3 earnings release scheduled for Oct 23, when the company is expected to report whether AI‑related revenue met analyst forecasts. The board is slated to vote on a $5 billion reduction to its share‑buyback program at the same meeting, a move that could signal a shift in capital strategy. A surprise development would be a partnership announcement with a major chipmaker to co‑develop custom AI processors, which would indicate the firm is accelerating its hardware ambitions despite the recent sell‑off. Counterintuitively, the stock’s steep decline has made Alphabet the most heavily shorted large‑cap tech name, meaning a short‑squeeze could trigger a rapid rebound if the earnings beat expectations.