Soaring yesterday, Rubrik (RBRK -11.41%) stock ended Thursday's trading session 11% higher from Wednesday's close. Today, however, the cybersecurity stock is headed in the opposite direction, following the company's reporting of second-quarter 2027 financial results yesterday after the bell.
As of 1:48 p.m. ET, Rubrik shares are down 11.9%.
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Cash flow margins have contracted through the first half of the year -- and investors aren't happy
Reporting Q2 2027 revenue of $427.3 million, Rubrik exceeded analysts' expectations that it would post $396.3 million on the top line. Similarly, the company provided a surprise at the bottom of the income statement, reporting adjusted earnings per share (EPS) of $0.20 -- better than the $0.04 analysts had anticipated.

NYSE: RBRK
Key Data Points
It's the cash flow statement that's leaving investors unsettled, though. In Q2 2027, Rubrik reported an operating cash flow margin of 18%, narrower than the 21% margin it reported in Q1 2027. Similarly, Rubrik reported a Q2 2027 free cash flow margin of 15% -- slimmer than the 19% margin it reported in the first quarter of fiscal 2027.
Should investors keep their distance from Rubrik stock now?
Rubrik stock might be tumbling today, but the sell-off is hardly evidence that the company's recent quarter was disappointing. Instead, investors should simply see the decline as an overreaction -- one that offers an attractive entry point for those seeking exposure to cybersecurity stocks.




