Is RBRK a good stock to buy? We came across a bullish thesis on Rubrik, Inc. on GabGrowth’s Substack. In this article, we will summarize the bulls’ thesis on RBRK. Rubrik, Inc.’s share was trading at $71.74 as of June 9th. RBRK’s trailing and forward P/E were 24.52 and 416.67 respectively according to Yahoo Finance.
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Rubrik, Inc. provides data security solutions to individuals and businesses worldwide. RBRK delivered another strong quarter, reinforcing its position as a leading cyber resilience platform despite broader fears surrounding software disruption and high-growth SaaS valuations. The company reported Q4 FY2026 revenue of $377.7 million, up 46% year-over-year, while subscription ARR reached $1.46 billion, growing 34% annually and surpassing expectations.
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Rubrik’s cloud ARR continued to outpace overall ARR growth, increasing 48% to $1.29 billion, highlighting strong enterprise adoption of its cloud-native security offerings and validating its transition from traditional backup infrastructure toward a broader cybersecurity platform. The business also maintained industry-leading retention metrics with net revenue retention consistently above 120%, while customers generating over $100,000 in subscription ARR increased 25% year-over-year to 2,805, demonstrating continued enterprise penetration and expansion.
Management emphasized that Rubrik’s role as a mission-critical “system of record of last resort” positions the company to benefit from rising AI adoption, agentic workflows, and increasing ransomware threats rather than being disrupted by them. Newer offerings such as Identity Resilience and Agent Cloud are scaling rapidly, with the identity protection business surpassing 900 customers in just a few quarters, making it the fastest-growing product in company history.
Although share dilution and stock-based compensation remain key risks, management noted that much of the elevated dilution stems from pre-IPO compensation plans that should normalize over time. With competitive win rates exceeding 90%, expanding margins, strong free cash flow potential, and significant long-term cybersecurity tailwinds, Rubrik appears well-positioned to evolve from a backup leader into a differentiated enterprise security platform.
Previously, we covered a bullish thesis on Rubrik, Inc. (RBRK) by ElectSamsepi0l in December 2024, which highlighted the company’s leadership in backup and recovery solutions, rising ARR growth, and expanding enterprise adoption. RBRK’s stock price has appreciated by approximately 33.69% since our coverage. GabGrowth shares a similar view but emphasizes on Rubrik’s accelerating cloud ARR growth and broader evolution into an enterprise cybersecurity platform.
Rubrik, Inc. is not on our list of the 40 Most Popular Stocks Among Hedge Funds. As per our database, 46 hedge fund portfolios held RBRK at the end of the first quarter which was 56 in the previous quarter. While we acknowledge the risk and potential of RBRK as an investment, our conviction lies in the belief that some AI stocks hold greater promise for delivering higher returns and doing so within a shorter time frame. If you are looking for an AI stock that is more promising than RBRK and that has 10,000% upside potential, check out our report about this cheapest AI stock.
Disclosure: None.
