Earnings beat expectations across the board, yet the stock fell 16.1%: the market wasn’t impressed by Datadog’s stellar results.

Third-quarter revenue rose 35.2% to $1.2 billion, and EPS came in at $0.81, 26.4% above expectations.

The sticking point: fourth-quarter guidance of around $1.2 billion, flat from the third quarter, with growth slowing to about 25%. The faster you grow, the higher the bar.