Sales Growth and Performance: Chipotle reported second-quarter sales of $3.1 billion, reflecting a 3% year-over-year growth but a negative comparable sales decline of 4%. The company experienced a rebound in transaction trends into July, leading to anticipations for flat comparable sales growth for the full year.

Operational Challenges: The restaurant-level margin declined by 150 basis points to 27.4%, driven by various cost pressures including labor and increased operating costs. Labor costs rose by 60 basis points, and other operating costs jumped by 110 basis points, primarily due to higher marketing expenses.

Marketing Initiatives: The "Summer of Extras" campaign was successful in driving customer engagement, resulting in 5 million participants and a 14% increase in enrollments year-over-year. The company aims to leverage these learnings and further increase brand visibility and relevance through innovative marketing strategies and potential menu innovations.