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Shake Shack (SHAK) is under heavy pressure after reporting its Q1 results this morning. The fast-casual burger chain reported break-even EPS, missing expectations, while revenue increased 14.3% yr/yr to $366.7 mln, also missing expectations. SHAK guided Q2 revenue to $424-428 mln, implying roughly 19-20% growth yr/yr, with Same-Shack sales of +3-5%, and reaffirmed its FY26 revenue guidance of $1.6-1.7 bln.

• Same-Shack sales increased 4.6%, toward the high end of prior guidance for +3-5%, supported by 1.4% traffic growth, its third straight quarter of positive traffic, and 3.2% price/mix. Weather was a roughly 240 bps headwind.
• SHAK did see some strain after the quarter with April average weekly sales down 2.6% yr/yr and Same-Shack sales down 0.6%, pressured by weaker urban tourism and some timing impact from Easter.
• Encouragingly, trends have improved in May behind the Baby Back Rib Sandwich launch, with June expected to benefit from World Cup-related traffic.
• SHAK continues to accelerate new-unit growth, opening a record 17 company-operated Shacks in the quarter and raising its FY26 company-operated opening target to 60-65 from 55-60.
• However, weather headwinds, higher investment spending, accelerated openings, and elevated pre-opening costs caused adjusted EBITDA to fall short of internal expectations, declining 9.3% yr/yr to $37.0 mln. Restaurant-level margin still expanded 50 bps yr/yr to 21.2% on labor efficiencies and procurement savings.
• Project Catalyst remains on track for a 2H26 rollout. SHAK also reaffirmed its three-year targets, including low-teens revenue/unit growth, at least 50 bps of annual restaurant-level margin expansion, and low-to-high-teens adjusted EBITDA growth.
• SHAK also named Michelle Hook as its new CFO. She joins from Portillo's (PTLO), where she had served as CFO since December 2020, and previously spent more than 17 years at Domino's (DPZ).

Briefing.com Analyst Insight

While SHAK has done a good job maintaining traffic growth, now reporting its third consecutive quarter of positive traffic, the sharp drop in shares appears driven by the pressure flowing through the bottom line. Heavier investment spending, accelerated openings, elevated pre-opening costs, and ongoing beef inflation are pressuring profitability, with adjusted EBITDA falling below internal expectations and SHAK swinging to an operating loss. Demand still appears to be holding up relatively well. Same-Shack sales and traffic improved sequentially, and Q2 comp guidance implies some stability, suggesting April's softness may prove temporary. SHAK is also opening stores at a healthy pace, while Project Catalyst could support operations and future G&A leverage. Overall, the comp and traffic trends remain encouraging, but the miss, EBITDA decline, and operating loss are overshadowing the positives.