Index -
P/E 40.99
EPS (ttm) 23.61
Insider Own 1.31%
Shs Outstand 35.27M
Perf Week -3.35%
Market Cap 34.14B
Forward P/E 31.44
EPS next Y 30.79
Insider Trans -11.66%
Shs Float 34.81M
Perf Month -0.54%
Enterprise Value 33.68B
PEG 0.91
EPS next Q 6.73
Inst Own 96.98%
Short Float 2.11%
Perf Quarter 23.77%
Income 837.62M
P/S 4.10
EPS this Y 79.75%
Inst Trans -2.06%
Short Ratio 1.66
Perf Half Y 96.45%
Sales 8.32B
P/B 15.29
EPS next Y 17.32%
ROA 16.44%
Short Interest 0.73M
Perf YTD 128.26%
Book/sh 63.32
P/C 38.74
EPS next 5Y 34.36%
ROE 43.84%
52W High 1036.67 -6.63%
Perf Year 110.79%
Cash/sh 24.98
P/FCF 42.74
EPS past 3/5Y 54.85% 36.52%
ROIC 31.94%
52W Low 276.44 250.15%
Perf 3Y 698.11%
Dividend Est. 1.91 (0.20%)
EV/EBITDA 26.91
Sales past 3/5Y 31.74% 21.86%
Gross Margin 22.78%
Volatility 6.16% 5.65%
Perf 5Y 1783.90%
Dividend TTM 1.95 (0.20%)
EV/Sales 4.05
EPS Y/Y TTM 80.54%
Oper. Margin 13.36%
ATR (14) 50.89
Perf 10Y 2821.67%
Dividend Ex-Date Nov 13, 2025
Quick Ratio 1.20
Sales Y/Y TTM 27.71%
Profit Margin 10.06%
RSI (14) 51.82
Recom 1.60
Dividend Gr. 3/5Y 35.72% 24.57%
Current Ratio 1.22
EPS Q/Q 101.62%
SMA20 1.14%
Beta 1.65
Target Price 1132.80
Payout 8.22%
Debt/Eq 0.19
Sales Q/Q 35.24%
SMA50 5.05%
Rel Volume 1.97
Prev Close 1024.92
Employees 18300
LT Debt/Eq 0.17
Earnings Oct 23 AMC
SMA200 54.08%
Avg Volume 441.72K
Price 967.95
IPO Jun 27, 1997
Option/Short Yes / Yes
EPS/Sales Surpr. 31.25% 13.58%
Trades
Volume 869,136
Change -5.56%
Date
Action
Analyst
Rating Change
Price Target Change
Sep-11-25 Initiated
William Blair
Outperform
Jul-28-25 Downgrade
Northcoast
Buy → Neutral
Feb-24-25 Upgrade
Sidoti
Neutral → Buy
$552
Nov-22-24 Initiated
Northcoast
Buy
$525
Nov-19-24 Upgrade
UBS
Neutral → Buy
$396 → $525
Nov-15-24 Initiated
Stifel
Buy
$524
Jan-10-24 Initiated
KeyBanc Capital Markets
Sector Weight
Jun-01-23 Initiated
UBS
Neutral
$162
Feb-25-22 Upgrade
DA Davidson
Neutral → Buy
Jan-15-21 Resumed
Sidoti
Neutral
$62
Apr-29-20 Downgrade
DA Davidson
Buy → Neutral
$56 → $32
Apr-20-20 Downgrade
Sidoti
Buy → Neutral
$31
Mar-11-20 Upgrade
Sidoti
Neutral → Buy
$50
Jul-29-19 Upgrade
DA Davidson
Neutral → Buy
Mar-12-19 Downgrade
Sidoti
Buy → Neutral
$57
Jan-02-19 Upgrade
Sidoti
Neutral → Buy
Jun-07-18 Downgrade
Sidoti
Buy → Neutral
Nov-10-17 Downgrade
Guggenheim
Buy → Neutral
Jan-13-17 Initiated
Macquarie
Outperform
Aug-12-16 Upgrade
Sidoti
Neutral → Buy
Show Previous Ratings
Dec-12-25 02:49PM
(Investor's Business Daily) -5.56%
02:46PM
(Investor's Business Daily)
10:24AM
Dec-10-25 04:20PM
01:35PM
(Investor's Business Daily)
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Dec-09-25 10:49AM
05:33AM
03:15AM
(The Wall Street Journal)
Dec-08-25 05:51PM
01:17PM
(The Wall Street Journal)
11:52AM
11:48AM
10:53AM
09:58AM
(The Wall Street Journal)
08:21AM
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08:21AM
08:08AM
05:27AM
05:05AM
04:38AM
(The Wall Street Journal)
Dec-07-25 11:41PM
(Associated Press Finance)
08:25PM
(Investor's Business Daily)
Dec-05-25 06:16PM
06:06PM
05:53PM
05:49PM
05:37PM
(Investor's Business Daily)
09:53AM
(Investor's Business Daily)
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Dec-04-25 10:26AM
Dec-03-25 09:40AM
09:19AM
Dec-02-25 09:56AM
07:55AM
Nov-28-25 01:19PM
(Investor's Business Daily)
Nov-27-25 10:31AM
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Nov-25-25 10:50AM
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Nov-21-25 11:02AM
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Nov-13-25 05:06PM
02:54PM
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Nov-12-25 08:03PM
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Nov-10-25 12:48PM
Nov-05-25 12:31PM
09:09AM
Nov-04-25 04:51AM
Oct-31-25 10:21AM
Oct-30-25 12:45PM
09:40AM
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Oct-29-25 10:52AM
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Oct-28-25 02:15PM
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Oct-27-25 09:35AM
Oct-24-25 05:55PM
(Investor's Business Daily) +18.99%
05:05PM
(Investor's Business Daily)
05:02PM
04:30PM
(Investor's Business Daily)
04:11PM
04:10PM
04:06PM
(Investor's Business Daily)
03:46PM
(Investor's Business Daily)
02:48PM
(Investor's Business Daily)
12:53PM
(Investor's Business Daily)
11:42AM
(Investor's Business Daily)
09:46AM
(Investor's Business Daily)
09:11AM
08:40AM
(Investor's Business Daily)
08:13AM
(Investor's Business Daily)
05:34AM
03:56AM
Oct-23-25 05:20PM
04:39PM
04:14PM
(Associated Press Finance)
04:09PM
04:09PM
09:17AM
Oct-22-25 10:08AM
09:19AM
Comfort Systems USA, Inc. engages in the provision of mechanical and electrical contracting services. It operates through the following segments: Mechanical, Electrical Services, and Corporate. The Mechanical Services segment includes heating, ventilation, and air conditioning, plumbing, piping, and controls, as well as off-site construction, monitoring, and fire protection. The Electrical services segment focuses on installation and servicing of electrical systems. The company was founded by Alfred J. Giardinelli, Jr. And William George III on December 12, 1996 and is headquartered in Houston, TX.
Insider Trading
Relationship
Date
Transaction
Cost
#Shares
Value ($)
#Shares Total
SEC Form 4
Howell Laura Finley SVP & GENERAL COUNSEL Dec 04 '25 Sale 996.16 1,000 996,163 7,938 Dec 05 11:09 AM Howell Laura Finley Officer Dec 04 '25 Proposed Sale 996.00 1,000 996,000 Dec 04 04:13 PM GEORGE WILLIAM III CHIEF FINANCIAL OFFICER Dec 01 '25 Sale 958.88 4,370 4,190,299 39,824 Dec 03 10:10 AM GEORGE WILLIAM III Officer Dec 01 '25 Proposed Sale 958.87 4,370 4,190,262 Dec 01 02:39 PM Lane Brian E. PRESIDENT/CHIEF EXECUTIVE OFF. Nov 24 '25 Sale 947.98 7,158 6,785,645 180,888 Nov 25 11:51 AM BRIAN E LANE Officer Nov 24 '25 Proposed Sale 947.98 7,158 6,785,645 Nov 24 04:23 PM ANDERSON DARCY Director Oct 31 '25 Sale 958.72 4,000 3,834,889 22,535 Nov 03 01:26 PM BULLS HERMAN E Director Oct 29 '25 Sale 1013.62 2,000 2,027,247 30,574 Oct 31 04:55 PM ANDERSON DARCY Director Oct 31 '25 Proposed Sale 958.72 4,000 3,834,889 Oct 31 04:08 PM MYERS FRANKLIN Director Oct 29 '25 Sale 1006.68 5,000 5,033,410 82,901 Oct 31 11:19 AM Mercado, Pablo G. Director Oct 29 '25 Sale 1005.41 2,500 2,513,516 4,000 Oct 30 04:15 PM Mercado, Pablo G. Director Oct 29 '25 Proposed Sale 997.83 2,500 2,494,575 Oct 29 04:35 PM MYERS FRANKLIN Director Oct 29 '25 Proposed Sale 1012.56 5,000 5,062,800 Oct 29 03:45 PM BULLS HERMAN E Director Oct 29 '25 Proposed Sale 1013.61 2,000 2,027,222 Oct 29 03:43 PM SANDBROOK WILLIAM J Director Sep 10 '25 Sale 733.56 800 586,847 11,666 Sep 10 05:00 PM SANDBROOK WILLIAM J Director Sep 09 '25 Sale 708.55 700 495,982 12,466 Sep 10 05:00 PM SANDBROOK WILLIAM J Director Sep 10 '25 Proposed Sale 733.56 800 586,846 Sep 10 01:17 PM SANDBROOK WILLIAM J Director Sep 09 '25 Proposed Sale 708.55 700 495,982 Sep 09 01:48 PM BULLS HERMAN E Director Aug 27 '25 Sale 710.00 3,000 2,130,000 32,574 Aug 28 04:00 PM SANDBROOK WILLIAM J Director Aug 25 '25 Sale 689.58 700 482,703 13,166 Aug 27 04:00 PM BULLS HERMAN E Director Aug 26 '25 Proposed Sale 691.18 3,000 2,073,540 Aug 26 04:10 PM Mercado, Pablo G. Director Aug 22 '25 Sale 695.88 1,078 750,159 6,500 Aug 25 05:00 PM SANDBROOK WILLIAM J Director Aug 25 '25 Proposed Sale 689.57 700 482,702 Aug 25 02:48 PM Mercado, Pablo G. Officer Aug 22 '25 Proposed Sale 698.43 1,078 752,908 Aug 22 04:25 PM Shaeff Julie CHIEF ACCOUNTING OFFICER Aug 12 '25 Sale 704.50 1,369 964,460 16,023 Aug 13 06:59 PM GEORGE WILLIAM III CHIEF FINANCIAL OFFICER Aug 08 '25 Option Exercise 40.34 8,436 340,268 55,909 Aug 12 07:36 PM GEORGE WILLIAM III CHIEF FINANCIAL OFFICER Aug 08 '25 Sale 692.60 8,436 5,842,785 47,473 Aug 12 07:36 PM Shaeff Julie Officer Aug 12 '25 Proposed Sale 704.50 1,369 964,460 Aug 12 05:35 PM GEORGE WILLIAM III Officer Aug 08 '25 Proposed Sale 692.60 8,436 5,842,785 Aug 08 04:23 PM Lane Brian E. PRESIDENT/CHIEF EXECUTIVE OFF. Aug 07 '25 Sale 691.74 10,000 6,917,439 188,046 Aug 08 12:53 PM BRIAN E LANE Officer Aug 07 '25 Proposed Sale 691.74 10,000 6,917,439 Aug 07 04:09 PM MYERS FRANKLIN CHAIRMAN OF THE BOARD Aug 06 '25 Sale 683.57 4,500 3,076,045 100,396 Aug 07 03:30 PM MYERS FRANKLIN Director Aug 06 '25 Proposed Sale 695.35 4,500 3,129,075 Aug 07 08:05 AM Trent T McKenna EVP & CHIEF OPERATING OFFICER Jul 31 '25 Sale 716.63 4,400 3,153,160 21,639 Aug 01 10:00 AM Trent T. McKenna Officer Jul 31 '25 Proposed Sale 716.63 4,400 3,153,160 Jul 31 03:36 PM BULLS HERMAN E Director Jun 09 '25 Sale 500.01 2,500 1,250,015 35,574 Jun 11 04:21 PM BULLS HERMAN E Director Jun 09 '25 Proposed Sale 500.00 2,500 1,250,000 Jun 10 10:24 AM ANDERSON DARCY Director Jun 06 '25 Sale 506.82 8,000 4,054,589 26,535 Jun 09 09:25 AM ANDERSON DARCY Director Jun 06 '25 Proposed Sale 499.13 8,000 3,993,040 Jun 06 11:26 AM Tang Vance W Director May 21 '25 Proposed Sale 473.74 3,000 1,421,220 May 21 03:10 PM GEORGE WILLIAM III CHIEF FINANCIAL OFFICER May 13 '25 Option Exercise 36.25 12,500 453,125 59,973 May 14 10:35 AM GEORGE WILLIAM III CHIEF FINANCIAL OFFICER May 13 '25 Sale 470.11 12,500 5,876,422 47,473 May 14 10:35 AM GEORGE WILLIAM III Officer May 13 '25 Proposed Sale 470.11 12,500 5,876,422 May 13 05:40 PM Skidmore Constance Ellen Director May 12 '25 Sale 452.98 1,000 452,980 13,285 May 13 04:07 PM Skidmore Constance Ellen Director May 12 '25 Proposed Sale 451.00 1,000 451,000 May 12 01:35 PM Lane Brian E. PRESIDENT/CHIEF EXECUTIVE OFF. May 07 '25 Sale 431.66 15,000 6,474,874 198,046 May 09 09:28 AM ANDERSON DARCY Director May 07 '25 Sale 431.66 3,000 1,294,989 34,193 May 09 09:27 AM BRIAN E LANE Officer May 07 '25 Proposed Sale 431.66 15,000 6,474,874 May 07 04:25 PM ANDERSON DARCY Director May 07 '25 Proposed Sale 430.01 3,000 1,290,030 May 07 12:22 PM Mercado, Pablo G. Director May 05 '25 Sale 436.10 1,800 784,980 7,236 May 06 12:47 PM Mercado, Pablo G. Director May 05 '25 Proposed Sale 433.13 1,800 779,634 May 05 03:03 PM Tang Vance W Director May 01 '25 Sale 422.00 500 211,000 4,998 May 02 10:04 AM Tang Vance W Director Apr 28 '25 Proposed Sale 404.00 998 403,192 Apr 28 11:19 AM