Arm shares tumble on weak profit forecast

Arm Holdings PLC shares tumbled over 12% after its second-quarter profit outlook disappointed, projecting EPS of $0.29-$0.37, with the midpoint below analyst expectations of $0.35, despite revenue forecasts aligning with Street estimates. This forward-looking weakness overshadowed Q1 fiscal 2026 results, which saw EPS match estimates at $0.35 and revenue slightly exceed expectations at $1.05 billion, up 12% year-over-year.

Analysis

Arm Holdings PLC experienced a significant share price decline of 12.2% due to a weak second-quarter profit forecast that overshadowed its in-line Q1 results. The primary catalyst for the sell-off was the Q2 earnings per share (EPS) guidance of $0.29-$0.37, whose midpoint falls below the consensus analyst expectation of $0.35. While the Q2 revenue forecast of $1.01 billion to $1.11 billion aligns with Street estimates, the market is clearly prioritizing profitability concerns. This forward-looking weakness is compounded by mixed Q1 results; although Q1 revenue grew 12% year-over-year to $1.05 billion and beat estimates, EPS of $0.35 represented a 13% year-over-year decline. A critical red flag is the stagnation in Remaining Performance Obligations (RPO), a key indicator of future revenue, which remained flat from the prior quarter at $2.23 billion. This metric suggests a potential deceleration in new business growth, creating a disconnect with CEO Rene Haas's bullish commentary on Arm's positioning as the platform of choice for AI.

Key Decisions for Investors

• Investors should treat the stark divergence between management's optimistic AI narrative and the weaker quantitative guidance as a primary risk factor, requiring close scrutiny of future execution.
• The flat quarter-over-quarter Remaining Performance Obligations (RPO) figure is a significant concern, and long-term investors should monitor this metric for a return to growth before building a larger position.
• Given the market's sharp negative reaction to the profit outlook, it may be prudent to re-evaluate valuation models to reflect lower near-term margin expectations and await the next earnings report for evidence of stabilization or recovery.