Nasdaq Falls 2.9% as Concerns Grow Over Returns on AI Spending
Key Facts
The Nasdaq Composite fell 2.9% in Friday’s session on October 30, 2026, while the S&P 500 declined 1.8%, its worst day since June, according to the Associated Press. Stocks came under pressure as investors grew concerned that massive investments in artificial intelligence may not deliver sufficient returns. Bloomberg said concerns about AI spending coincided with disappointing results in the core businesses of major technology companies. The session reflected broader concerns about the cost of building the infrastructure needed for AI and companies’ ability to turn those investments into returns. Portfolio manager Joe Tigay said: "We’re moving from the hopes and dreams phase of AI trading to: Show us the results."
Amazon stood out in the sell-off after its shares fell 1.4% on Friday, according to the Associated Press, following the company’s report of summer earnings below analysts’ expectations. The agency also noted that investors focused on the company’s spending on AI-related equipment. The stock’s loss came as markets weighed the expansion of digital infrastructure against its impact on results and capital spending. Available coverage did not link the move to a specific decline in cybersecurity stocks. Nor does the evidence substantiate the declines for Rapid7, Okta, Zscaler, SentinelOne and Qualys cited in the initial draft, or when they occurred.
In cybersecurity, Palo Alto Networks’ fiscal 2026 results showed 40% growth in bookings for secure access service edge (SASE), according to the company’s fourth-quarter earnings call transcript. The company said it displaced competitors in about 100 accounts, representing more than $400 million in total contract value. These figures offer an indication that the company continues to win business in the security solutions market, as technology stocks fluctuate amid concerns about AI spending. The company also said its Prisma AIRS product surpassed $100 million in annual recurring revenue within four quarters of general availability. The product had more than 800 customers in the fourth quarter of fiscal 2026.
Palo Alto Networks’ growth indicators contrast with broader market concerns about returns on technology spending, reflected in U.S. index losses on October 30. While SASE bookings recorded annual growth of 40%, those results relate to the company and do not establish the performance of other cybersecurity companies or explain their share price moves. Displacing competitors in about 100 accounts, with total contract value exceeding $400 million, also provides a measure of the business the company said it won in fiscal 2026. Meanwhile, Prisma AIRS surpassed the $100 million annual recurring revenue threshold after four quarters of general availability, with a customer base of more than 800. These figures provide sector context, not evidence of what drove another company’s stock move.
A forthcoming milestone in the sector is the end of CrowdStrike’s third quarter of fiscal 2027 on October 31, 2026, according to its filing with the U.S. Securities and Exchange Commission. The filing set August 26, 2026, as the date for a call to discuss the company’s results and guidance, and stated that the quarter ends on October 31. The quarter’s results and the company’s guidance offer a next opportunity to track cybersecurity companies’ performance after the technology stock sell-off. Comparing them with figures reported by companies allows investors to track the sector’s business trajectory, including demand and growth indicators cited in Palo Alto Networks’ results. Investors’ concerns about returns on AI spending remain in the background of trading after Friday’s losses.