Jabil Circuit IncStock rally raises valuation questions; strong AI-driven earnings and raised guidance are positive, but high valuation suggests optimism priced in.

Jabil Inc. shares have surged on AI infrastructure spending, but the rally has pushed its valuation to a forward price-to-earnings ratio of 25.52, near the sub-industry average of 25.89, suggesting much of the optimism may already be priced in. The company reported fiscal third-quarter revenue of $8.75 billion, up 11.8% year over year, and core diluted earnings per share of $3.16, beating estimates, while raising its full-year revenue outlook to approximately $35 billion and core earnings per share guidance to about $12.70. AI-related revenue is expected to reach roughly $13.6 billion for fiscal 2026, driven by hyperscale customer demand across cloud infrastructure, networking, compute, storage, cooling and rack integration. However, risks include customer concentration, intense competition from firms such as Flex Ltd. and Sanmina Corporation, and macroeconomic uncertainty that could create periodic volatility. Jabil currently holds a Zacks Rank #2, or Buy, with strong momentum and growth scores, but its Value Score of C indicates investors should weigh valuation against the company's continued execution.
Jabil Circuit IncStock rally raises valuation questions; strong AI-driven earnings and raised guidance are positive, but high valuation suggests optimism priced in.
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