Comfort Systems USA, Inc.

Comfort Systems trades at a P/E of 53.7—nearly double the industrials sector median—while sitting at its 52-week high with an RSI of 70.3 signaling overbought conditions. The $56B market cap reflects extraordinary growth expectations baked into valuation, yet the minimal 2.5% short interest suggests limited skepticism from bears. At these levels, the risk/reward appears skewed toward disappointment; any stumble in earnings growth could trigger sharp multiple compression given how elevated the multiple already sits relative to peers in electrical contracting.