DELL vs RBRK: How Dell Technologies and Rubrik Compare (2026)

Same yardstick, side by side (as of July 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: DELL is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. DELL and RBRK share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined DELL and RBRK exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Dell Technologies sells computing hardware to enterprises and consumers. The business has two main segments. Infrastructure Solutions Group (ISG) sells servers (including AI-optimized PowerEdge servers), storage (PowerStore, PowerMax), and data center networking; ISG has become a major AI infrastructure beneficiary because Dell is one of the largest assemblers of NVIDIA GPU-based AI servers for hyperscaler and enterprise customers. Client Solutions Group (CSG) sells laptops, desktops, monitors, and peripherals to consumer and commercial markets.

Full DELL guide

Rubrik (RBRK) is a data security and cyber-resilience company that went public in 2024. Its platform protects, backs up, and recovers an organization's data across on-premises systems, public clouds, and SaaS applications, with a particular emphasis on defending against ransomware. Rather than positioning itself only as backup, Rubrik markets a Zero Trust Data Security approach: immutable backups, continuous monitoring for sensitive data and threats, and rapid recovery so companies can restore operations after an attack.

Full RBRK guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• DELL drivers: AI server assembly as the headline growth driver; Storage modernization.
• RBRK drivers: Cyber resilience demand; Subscription ARR growth.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: AI server margins are structurally thinner than other Dell business; the headline revenue growth doesn't translate to proportional earnings growth. For RBRK, rubrik is still unprofitable on a GAAP basis as it invests for growth, and stock-based compensation is significant following its IPO.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick DELL if you believe its drivers more; RBRK if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the DELL and RBRK guides.

DELL. Dell trades at a modest P/E reflecting the low-margin hardware business model. The premium versus pure hardware peers comes from AI server exposure; the multiple compresses if AI server margins disappoint or if PC end markets weaken.

RBRK. Rubrik trades as a high-growth, recently public SaaS security name valued on subscription ARR and the cyber-resilience theme rather than current GAAP earnings. The premium price-to-sales multiple reflects growth and market opportunity; it depends on continued ARR expansion and a credible path to profitability, leaving it sensitive to growth-rate changes.

Headline figures (approximate, early 2026): DELL shows revenue (ttm) ~$100 billion, operating margin ~7% (thin overall; AI servers thinner), net income (ttm) ~$5 billion, eps (ttm) ~$7.00; RBRK shows revenue (ttm) ~$1 billion, subscription arr Growing rapidly (well over $1 billion), revenue growth Strong double-digit, operating margin Negative GAAP (improving toward breakeven).

DELL and RBRK are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined DELL and RBRK exposure against your real portfolio. It is not an investment adviser.