Alphabet fell more than 12% on Thursday, and the move rippled through financial news as US stocks dropped after its Q3 sales came up short. The sell-off hit technology shares first, then spread into semiconductor and software names, leaving investors in the Nasdaq Composite with the sharpest decline of the session.
0.3% was the size of the drop in the Dow Jones Industrial Average, while the S&P 500 lost roughly 0.3% and the Nasdaq Composite fell about 1.4%. Alphabet's cloud growth rose 103%, but that was not enough to offset the weaker sales print that traders were focused on.
AI Names Lose Steam
1.4% captured the Nasdaq Composite's decline, and the pressure did not stay inside Alphabet. The iShares Semiconductor Index ETF skidded, software stocks tumbled, and Fortinet and ServiceNow posted double-digit losses after their earnings reports, showing that the post-earnings pullback was not limited to one company.
103% cloud growth from Alphabet also shows why this move landed with such force: the market still wants AI-linked companies to translate rapid infrastructure spending into cleaner revenue gains. When that linkage looks less certain, the reaction tends to hit the most expensive parts of the trade first, which is exactly what happened across semiconductor and software shares.
Microsoft Beats, Alphabet Slumps
Microsoft beat analyst expectations on the top and bottom lines, but Alphabet's weaker sales and AI concerns still pushed tech stocks lower. That split matters because it shows the sell-off was not a broad earnings failure; it was a re-pricing of AI exposure after one of the sector's biggest names failed to deliver the sales momentum Wall Street wanted.
10% was how much Amazon stock fell in post-market hours before trimming losses after its quarterly results, adding another layer of pressure to the same trade. Intel later reported better-than-anticipated third-quarter earnings after the bell, but its Q4 revenue outlook of $15 billion to $16 billion fell short of Wall Street's $17 billion target, a gap tied to a worse-than-anticipated drop in PC revenue.
Intel and Amazon Await
More than 20% was how far Intel stock fell at one point before paring losses, a reminder that even beats can be overwhelmed when forward guidance misses. Rivian, by contrast, rose after hours after it posted Q3 revenue of $2.155 billion versus $2.02 billion per consensus, an adjusted loss per share of $0.48 versus $0.61, and an adjusted EBITDA loss of $435 million versus $575.9 million.
3.6% was the year-over-year rise in the Personal Consumption Expenditures index in September, and the Federal Reserve held rates unchanged on Wednesday afternoon with two dissenters who wanted a hike. That backdrop left investors weighing whether AI spending can keep driving earnings if rates stay elevated and returns remain uneven, a question Amazon's results only sharpened after the bell.
