What Happened?

A number of stocks jumped 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.

The stock market overreacts to news, and big price drops can present good opportunities to buy high-quality stocks.

Among others, the following stocks were impacted:

• Vulnerability Management company Rapid7 (NASDAQ: RPD) jumped 5.3%. Is now the time to buy Rapid7? Access our full analysis report here, it’s free.
• Vulnerability Management company Tenable (NASDAQ: TENB) jumped 8.2%. Is now the time to buy Tenable? Access our full analysis report here, it’s free.
• Endpoint Security company Varonis Systems (NASDAQ: VRNS) jumped 6.7%. Is now the time to buy Varonis Systems? Access our full analysis report here, it’s free.

Zooming In On Tenable (TENB)

Tenable’s shares are very volatile and have had 23 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 6 days ago when the stock dropped 3.9% on the news that President Trump declared the Iran ceasefire "over" and threatened renewed strikes, sending oil higher and bond yields up in a session that punished high-multiple tech. 

Software companies are quintessential long-duration growth stocks, valued on cash flows expected far into the future, which makes them acutely sensitive to interest rates. When a crude spike revives inflation fears and pushes government bond yields higher, as it did, the discount rate applied to those distant earnings rises and rich software valuations compress fastest. 

The move was amplified by a risk-off rotation: with geopolitical tensions flaring, investors rotate out of the market's most expensive, momentum-driven corner and into energy and defensives. Though software has little direct exposure to oil as an input, its valuation math and its role as a funding source when investors de-risk make it a casualty of these shocks.

Tenable is up 86.5% since the beginning of the year, and at $42.40 per share, it has set a new 52-week high. Investors who bought $1,000 worth of Tenable’s shares 5 years ago would now be looking at an investment worth $1,067.

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