Key Highlights

● Palo Alto Networks climbed on Friday, trading around $418.78 in the afternoon as Cybersecurity stocks staged a sharp rebound.

● CrowdStrike also rallied, trading around $275.04, and Zscaler gained, forming one of the session's clearest themes.

● Zscaler reaffirmed its full-year Revenue outlook of $3.91 billion to $3.94 billion at its investor day earlier in the week.

● Semiconductor stocks lagged as Nvidia, AMD and Micron slipped, while Oracle, Microsoft, Datadog and Palantir rose.

Palo Alto Networks (NASDAQ:PANW) climbed on Friday, trading around $418.78 in the afternoon as cybersecurity stocks staged one of the sharpest rebounds in the market. There was no company-specific news for Palo Alto. It moved with its sector, which was among the day's standout groups. A cybersecurity exchange-traded fund jumped strongly, outpacing the broader market by a wide margin.

CrowdStrike (NASDAQ:CRWD) also rallied, trading around $275.04, and Zscaler (NASDAQ:ZS) gained. Together, the security names formed one of the clearest themes of a session in which investors moved back into software after a nervous Thursday.

Where the sector support came from

The bid for the sector was linked to Zscaler, which earlier in the week reaffirmed its full-year revenue outlook of $3.91 billion to $3.94 billion at its investor day. Zscaler also announced a collaboration with IBM (NYSE:IBM) and Red Hat aimed at protecting private applications during the window when software vulnerabilities are being disclosed. Positive signals from one major security vendor can help lift confidence in spending across the industry.

Palo Alto Networks is one of the largest cybersecurity companies in the world. It sells firewalls, cloud security tools and security operations software to businesses and governments, and in recent years it has pushed customers toward a single integrated platform rather than a patchwork of separate products. Cybersecurity is often seen by investors as a budget line companies are reluctant to cut, which can make the sector attractive when the outlook for broader technology spending is uncertain.

From AI scare to software rebound

On Thursday, AI-related shares tumbled after a media report said that OpenAI's annualized revenue was about $50 billion at the end of September, roughly $20 billion below an earlier figure. By Friday, a separate media report said OpenAI expects to reach at least $70 billion by year end, and buyers returned to software. Oracle (NYSE:ORCL), Microsoft (NASDAQ:MSFT), Datadog (NASDAQ:DDOG) and Palantir (NASDAQ:PLTR) all rose. Semiconductor stocks lagged: Nvidia (NASDAQ:NVDA), AMD (NASDAQ:AMD) and Micron (NASDAQ:MU) slipped.

A firm, if cautious, market

The S&P 500 gained 46.18 points to 7,811.54, the Dow climbed 423.31 points to 51,654.95 and the Nasdaq Composite rose 172.83 points to 27,366.17. Nasdaq advancers outnumbered decliners by about 1.38 to 1, but trading Volume across US exchanges was below its recent average.

Not everyone was convinced. Ross Mayfield of Baird said: "That's why it's a fairly tepid rally." Rates remain a concern for richly valued software stocks: the 10-year Treasury Yield is near a 24-year high, and the Federal Reserve, which raised rates in September for the first time since 2023, has indicated more hikes could follow. Fed Governor Christopher Waller said on Thursday: "For at least the near term, policy will be focused on the Inflation side of our mandate."

There was also a reminder of the risks hanging over the tech trade. Deutsche Bank (NYSE:DB)'s George Saravelos said "The biggest systemic risk in the market next year is not France but 'something going wrong' in the AI ecosystem."

Will Cybersecurity's Rebound Hold? Zscaler's Outlook Offers One Clue

On Monday, Columbus Day, the stock market is open while the Bond Market is closed. September consumer price data lands on Wednesday, October 14, followed by producer prices and retail sales on Thursday, and big banks report from October 13 to 16. The Federal Reserve meets on October 27 and 28. Security investors will watch whether the sector holds its gains and whether more vendors echo Zscaler's steady outlook.