Datadog is trading 9.43% down at $199.72 after fourth-quarter revenue guidance pointed to slower growth. - The November 4 report showed third-quarter revenue and adjusted earnings above estimates, but Q4 revenue guidance was $1.19 billion–$1.20 billion, suggesting little sequential growth and slower year-over-year growth. - Management raised full-year 2026 revenue and adjusted EPS guidance, but investors remained concerned about near-term momentum and usage among large customers. - Reports also noted fewer net additions of large-ARR customers than in the prior quarter.