Comfort Systems USA Inc (FIX · NYSE)

Comfort Systems USA (FIX) delivered 50.3% revenue growth and 91.9% earnings growth year over year, with quarterly revenue climbing from $2.45B in Q3 2025 to $3.27B in Q2 2026, and it beat estimates in all of its last four earnings reports, including a 20.7% beat in the most recent quarter ($12.53 vs. $10.38). The company carries minimal leverage at 0.2x debt/EBITDA with $1.85B in cash and generated $998.1M in free cash flow in the quarter, supporting a 55.3% ROE. The stock trades at a 42.22 P/E with a 0.543 PEG ratio, sits 16.9% below its 52-week high, and is up 8.9% versus its 200-day moving average, though Zacks downgraded shares from Strong Buy to Hold on October 7. Institutional activity was mixed in the third quarter, with Artemis Investment Management raising its stake 232% and Zevenbergen Capital increasing 111.7%, while Farther Finance Advisors trimmed its position 27.2%.