Why Is QUALYS INC (QLYS) Stock Up Today?

Qualys Inc (NASDAQ: QLYS) shares surged 13.89% to $183.43 on Monday, driven by strong second-quarter results and an upbeat revenue outlook. The cybersecurity firm reported a 16% year-over-year increase in current billings to $176.5 million and raised its full-year revenue guidance to between $732 million and $738 million. The stock opened with a 12.3% gap up and reached a session high of $204.84 before settling near $183.64 with volume of 0.6 million shares.

What Happened

Qualys reported Q2 2026 results that exceeded expectations, with earnings and revenue both topping estimates. The company also introduced new offerings such as InstaScan and AI-native TruRisk, while raising its EPS guidance to $7.74-$7.88. These developments were highlighted in the earnings call on August 4, 2026, and reflected in the company’s presentation materials. The raised guidance and strong billings growth signaled continued market share gains in the cybersecurity sector.

The stock’s surge was also supported by price target upgrades from analysts. Jefferies raised its price target to $185, while Piper Sandler increased its target to $175. These adjustments reflect growing confidence in the company’s financial trajectory and product innovation.

What The Data Shows

The stock opened at $180.94 and saw a sharp intraday move to $204.84 before consolidating. The session volume of 0.6 million shares was 0.7 times the 3-month average, indicating moderate participation. The stock’s 52-week range is $74.51 to $167.86, meaning today’s close of $183.43 represents a new 52-week high. The market cap of $5.5 billion and P/E ratio of 28.9 suggest the stock is trading at a premium relative to earnings.

What To Watch

Qualys has no earnings scheduled in the immediate future. Investors should monitor the breadth of analyst coverage and any follow-up commentary on the company’s new product launches and guidance.