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Rubrik RBRK

Rubrik scores good on business quality (6.6 of 10). Here is why, in plain words, and what our sealed record shows.

Last price$125.14Oct 9, 2026
Business qualityGood
Next earningsDec 7, 2026
Insiders, 90 daysSelling

Why it matters

  1. What Rubrik does

    Rubrik sells cloud-based data security and backup software to enterprises, charging subscription fees to protect critical corporate databases from ransomware. The business is aggressively expanding its Zero Trust data security suite to capture surging demand for automated cyber recovery.

  2. What it does best

    Rubrik scales top-line expansion faster than nearly any peer, posting 48.4% revenue growth that ranks in the top decile of its sector at the 96th percentile. This hyper-growth outpaces security peers like PANW at 14.9%, driven by deep enterprise integrations that lock customers into its recovery platform.

  3. The main risk

    Deep operating losses threaten stability, with an operating margin of -21.9% landing in the bottom quartile of the sector at the 1st percentile. Until this negative margin reverses, the company burns capital to chase growth and remains vulnerable to rising customer acquisition costs.

Quality, check by check

Scored against its own industry, from company filings.

ProfitabilityWeak

Operating margins sit deeply negative at -21.9%, ranking in the 1st sector percentile, though a positive free cash flow margin proves core cash generation works as scale builds.

MoatStrong

High switching costs lock enterprise customers into its data security ecosystem, backed by a gross margin of 80.6% that sits safely in the top quartile of its sector.

GrowthFast

Revenue growth hits 48.4%, accelerating dramatically from $628M in fiscal 2024 to $1.4B in the latest period as the enterprise security engine dominates adoption.

Financial healthFair

Rubrik holds $1.7B in cash against $1.1B in debt, generating $278M in free cash flow which shows the balance sheet is pivoting toward self-funding despite negative earnings.

Insiders

Executives and directors, from SEC Form 4 filings we read ourselves. Open market trades only; grants, option exercises and pre-planned sales left out.

1 sold $331K outside pre-planned sales.

Our sealed record on RBRK

Verdicts appear here 30 days after we publish them; members see today's. Each one is in the nightly ledger, fingerprinted the night it was made.

The first sealed verdicts appear here on Oct 11, 2026.

Questions

Is RBRK a good business?

Rubrik scores good on the Cluenex quality check (6.6 of 10), measured against its own industry. Profitability is weak, moat strong, growth fast and financial health fair.

Are insiders buying RBRK?

In the last 90 days of SEC Form 4 filings: 1 sold $331K outside pre-planned sales.

When does RBRK report earnings?

Dec 7, 2026.

For members

See RBRK today

  • Today's verdict on RBRK, and why
  • Fair value with cautious, base and optimistic cases
  • The exact price that would change the verdict
  • Which stocks each signal names, the night it fires
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Cite this page: Cluenex, “Rubrik (RBRK)”, https://cluenex.com/stocks/rbrk/, data as of Oct 10, 2026.