Comfort Systems USAvs.Vertiv
FIX vs VRT · both in Cooling, power & data center infrastructure, part of the AI & digital infrastructure value chain: Power, cooling and physical equipment, AI's physical foundation.
Vertiv is about 1.5× larger than Comfort Systems USA by market cap; Comfort Systems USA trades at the lower P/E (42.1 vs 53.9); year to date, Comfort Systems USA leads (+86.6% vs +52.1%).
Side by side
| FIX | VRT | |
|---|---|---|
| Market cap | $60.3B | $93.4B |
| Price | $1,706.39 | $243.73 |
| Today | −2.0% | −1.1% |
| Return YTD | +86.6% | +52.1% |
| Return 1Y | +113.3% | +55.2% |
| Since June 26, 2026 | −8.0% | −19.8% |
| P/E | 42.1 | 53.9 |
| P/S | 5.4 | 8.1 |
| P/B | 18.8 | 19.6 |
Data as of 2026-10-08 · updates daily after U.S. close
Since June 26, 2026: the change in the closing price, from the daily closes Sectivia records itself since that date.
The two companies
Comfort Systems USAFIX
Mechanical contracting: HVAC and cooling, plus electrical and plumbing work. The data center building boom has been good for the order book.
Full FIX profile →VertivVRT
An AI rack throws off enough heat that air alone stops working. Vertiv sells the liquid cooling, the power gear around it and whole modular data centres.
Full VRT profile →More FIX & VRT comparisons
Other head-to-heads in the Cooling, power & data center infrastructure segment.