What Happened?
Shares of cloud security platform Zscaler (NASDAQ: ZS) jumped 8.8% in the morning session after U.S. and international security agencies issued a joint warning about Russian state-sponsored cyber threats targeting critical infrastructure.
The Cybersecurity and Infrastructure Security Agency (CISA), in collaboration with the National Security Agency (NSA) and the FBI, released an advisory warning that Russian cyber actors are exploiting vulnerable networking devices and routers. The advisory highlighted that sectors such as communications, energy, government, and healthcare were being targeted globally.
Such high-level alerts about cyber threats often increase investor interest in cybersecurity companies, as they underscore the growing need for advanced security solutions to protect essential services and infrastructure.
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What Is The Market Telling Us
Zscaler’s shares are very volatile and have had 26 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.
The previous big move we wrote about was 13 days ago when the stock gained 4.7% on the news that Guggenheim's John DiFucci upgraded both Salesforce and ServiceNow to Buy, arguing the AI-disruption fear that gutted the sector during the year had pushed valuations too low.
This was a valuation call from a skeptic, not an AI endorsement. DiFucci wrote he is "not upgrading because we see [ServiceNow] as an AI beneficiary," calling near-term AI monetization "unlikely to materialize" and AI risks "very real," while arguing the darkest scenario was already priced in (CRM at ~3.7x EV/recurring revenue; NOW's $125 target at 7.5x EV/NTM recurring revenue).
The read-through was what lifted the group. When a previously cautious, highly ranked analyst flips to Buy on the two enterprise-SaaS bellwethers purely on valuation, it signals the "SaaSpocalypse" repricing overshot, de-risking the whole complex and inviting bargain-hunting across peers. Oracle's ~2% bounce added an independent second leg, driven by inclusion on William Blair's July Analyst Conviction List, a new AI product, and oversold conditions after the previous disclosure of a $40 billion AI-infrastructure raise. Together they extended a multi-week recovery.
Zscaler is down 30.4% since the beginning of the year, and at $153.59 per share, it is trading 54.3% below its 52-week high of $336.27 from November 2025. Investors who bought $1,000 worth of Zscaler’s shares 5 years ago would now be looking at only $684.10.
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