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Rubrik (RBRK) Faces A Valuation Test After Expanding Project Hourglass

Simply Wall St·10/23/2026 05:41:54
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Rubrik (RBRK) drew fresh attention from investors after broadening its Project Hourglass alliance, adding new partners and introducing Rubrik Code Guardian to test client code in air-gapped environments using Anthropic’s Claude Mythos 5.

For context, Rubrik’s recent news is landing against a backdrop of strong momentum, with a 30 day share price return of 7.94%, a 90 day share price return of 64.87% and a 1 year total shareholder return of 57.10%. This suggests investors are treating these Project Hourglass updates as part of a broader, building growth story rather than a one off headline.

Scan Rubrik’s momentum against a curated set of AI security and infrastructure plays by checking the 55 AI infrastructure stocks that are already catching institutional attention.

Rubrik now looks every bit like a serious AI security platform, and the share price has raced to reflect that story. The real tension sits in one place. Does today’s valuation already assume too much?

Most Popular Narrative: 1% Overvalued

Rubrik’s most followed narrative anchors fair value at about $120.15 a share, almost exactly in line with the latest $120.75 close. This suggests that most of the projected upside is already reflected in the price and leaves expectations doing most of the heavy lifting.

In order for the above numbers to justify the price target of the analysts, the company would need to trade at a PE ratio of 115.2x on those 2029 earnings, up from -93.5x today. This future PE is greater than the current PE for the US Software industry at 29.7x.

See why 67 investors see Rubrik as 1% overvalued.

Result: Fair Value of $120.15 (OVERVALUED)

Still, the Rubrik narrative can be knocked off course if aggressive cyber resilience rivals squeeze market share or if AI and cloud projects experience slower customer adoption.

Find out about the key risks to this Rubrik narrative.

Next Steps

Rubrik’s story so far mixes excitement with real questions about risk and reward, so do not just lean on the crowd’s view. Pressure test the bull and bear cases yourself by starting with the 1 key reward and 2 important warning signs.

Looking For More Ideas Beyond Rubrik?

If you only stop at Rubrik, you miss other opportunities that could better match your risk tolerance, income needs, or appetite for mispriced quality.