Comfort Systems USA shares rise after blowout Q4 results and near-doubling backlog

Comfort Systems USA (FIX) is up 3.7% today. Here is some analysis on what might have caused this price movement.

Analysis: The move higher appears tied to the company’s fourth-quarter and full-year 2025 results released after the prior market close, which showed sharp profit growth and a backlog that nearly doubled year over year. Investors also appeared to focus on the scale of booked work heading into 2026 and the company’s updated dividend declaration.

Details:

Comfort Systems reported fourth-quarter 2025 net income of $330.8 million ($9.37 per diluted share), up from $145.9 million ($4.09 per diluted share) a year earlier.

Fourth-quarter revenue increased to $2.65 billion from $1.87 billion in the prior-year quarter, alongside a large increase in operating cash flow.

Backlog at December 31, 2025 rose to about $11.94 billion, up from $5.99 billion a year earlier and higher than the prior quarter’s level.

The company also disclosed a quarterly dividend declaration with a March 6, 2026 record date, which may have added to positive sentiment.

Sources:

SEC, Business Wire, Zacks Investment Research

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$FIX Insider Trading Activity

$FIX insiders have traded $FIX stock on the open market 13 times in the past 6 months. Of those trades, 0 have been purchases and 13 have been sales.

Here’s a breakdown of recent trading of $FIX stock by insiders over the last 6 months:

BRIAN E. LANE (PRESIDENT/CHIEF EXECUTIVE OFF.) sold 7,158 shares for an estimated $6,785,645
FRANKLIN MYERS sold 5,000 shares for an estimated $5,033,410
WILLIAM III GEORGE (CHIEF FINANCIAL OFFICER) sold 4,370 shares for an estimated $4,190,299
HERMAN E BULLS has made 0 purchases and 2 sales selling 5,000 shares for an estimated $4,157,247.
DARCY ANDERSON sold 4,000 shares for an estimated $3,834,888
PABLO G. MERCADO, has made 0 purchases and 2 sales selling 3,578 shares for an estimated $3,263,674.
WILLIAM J SANDBROOK has made 0 purchases and 4 sales selling 2,200 shares for an estimated $1,565,531.
LAURA FINLEY HOWELL (SVP & GENERAL COUNSEL) sold 1,000 shares for an estimated $996,163

To track insider transactions, check out Quiver Quantitative's insider trading dashboard.

$FIX Hedge Fund Activity

We have seen 571 institutional investors add shares of $FIX stock to their portfolio, and 478 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

VANGUARD GROUP INC added 625,567 shares (+17.0%) to their portfolio in Q4 2025, for an estimated $583,835,425
BLACKROCK, INC. removed 528,953 shares (-13.3%) from their portfolio in Q4 2025, for an estimated $493,666,545
INVESCO LTD. removed 411,581 shares (-38.7%) from their portfolio in Q4 2025, for an estimated $384,124,431
STATE STREET CORP added 375,118 shares (+35.6%) to their portfolio in Q4 2025, for an estimated $350,093,878
GEODE CAPITAL MANAGEMENT, LLC added 332,441 shares (+39.0%) to their portfolio in Q4 2025, for an estimated $310,263,860
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC removed 320,352 shares (-70.5%) from their portfolio in Q4 2025, for an estimated $298,981,318
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO added 309,217 shares (+37987.3%) to their portfolio in Q4 2025, for an estimated $288,589,133

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.

$FIX Government Contracts

We have seen $252,125 of award payments to $FIX over the last year.

Here are some of the awards which we have have seen pay out the most over the last year:

BC BMS SERVICES: $191,644
REPAIR FORDYCE HVAC: $23,783
EO 14042 - IT HVAC MAINTENANCE AND INSPECTION (USM-DN): $6,080

To track government contracts to publicy traded companies, check out Quiver Quantitative's government contracts dashboard.

$FIX Congressional Stock Trading

Members of Congress have traded $FIX stock 2 times in the past 6 months. Of those trades, 2 have been purchases and 0 have been sales.

Here’s a breakdown of recent trading of $FIX stock by members of Congress over the last 6 months:

REPRESENTATIVE BYRON DONALDS has traded it 2 times. They made 2 purchases worth up to $30,000 on 12/04 and 0 sales.

To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard.

$FIX Analyst Ratings

Wall Street analysts have issued reports on $FIX in the last several months. We have seen 4 firms issue buy ratings on the stock, and 0 firms issue sell ratings.

Here are some recent analyst ratings:

DA Davidson issued a "Buy" rating on 12/19/2025
UBS issued a "Buy" rating on 10/27/2025
Stifel issued a "Buy" rating on 10/13/2025
William Blair issued a "Outperform" rating on 09/11/2025

To track analyst ratings and price targets for $FIX, check out Quiver Quantitative's $FIX forecast page.

$FIX Price Targets

Multiple analysts have issued price targets for $FIX recently. We have seen 3 analysts offer price targets for $FIX in the last 6 months, with a median target of $1196.0.

Here are some recent targets:

Brian Brophy from Stifel set a target price of $1196.0 on 01/26/2026
Brent Thielman from DA Davidson set a target price of $1200.0 on 12/19/2025
Joshua Chan from UBS set a target price of $1140.0 on 10/27/2025

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.