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FIX Comfort Systems USA, Inc.

Industrials

1,200 -32.52 -2.64% Close 11/2
Since 2024-12-02 +153.1%
Open
1,250
High
1,259
Low
1,192
Prev close
1,233
Volume
530.9K
Amplitude
5.44%
P/E
26.6
P/B
12.9
Revenue YoY (TTM)
+50.7%
52W 841.66 2,074

Is Comfort Systems USA, Inc. a buy? Fundamentals and valuation first

As of 2026-10-30

Quality: Good, Growth: Strong, Risk / liquidity: Good; Valuation: Pricey.

Valuation Pricey Free-cash-flow yield is Good, but Price / book is Expensive.
TTM P/E 26.61 65th percentile Pricey
Price / book 12.93 94th percentile Expensive
Free-cash-flow yield (%) 5.66 69th percentile Good
US Stock Backtest in Python: Price-to-Book Ratio StrategyQuality Factor Investing: A US Quality Value Backtest
Quality Good ROE, TTM is Top; Operating margin, TTM is Good.
ROE, TTM (%) 48.93 92th percentile Top
Operating margin, TTM (%) 16.7 67th percentile Good
FCF margin, TTM (%) 19.46 76th percentile Good
Quality Factor Investing: A US Quality Value Backtest
Growth Strong All 2 indicators are Top.
Revenue growth, TTM YoY (%) 50.7 87th percentile Top
Diluted EPS growth, TTM YoY (%) 96.1 84th percentile Top
Momentum Neutral 240-day return is Top, but 60-day return is Lagging.
60-day return (%) -28.03 19th percentile Lagging
240-day return (%) 35.72 81th percentile Top
Momentum Trading Strategy: A 12-1 Momentum Backtest
Risk / liquidity Good 20-day dollar volume is Top, but 60-day annualized volatility is Average.
20-day dollar volume 780,781,125 98th percentile Top
60-day annualized volatility (%) 57.22 62th percentile Average
Factor Investing Explained: 10 Classic Factors in US Stocks

Comfort Systems USA, Inc. (FIX) today

2 quant signals active · As of 2026-10-30

Win rate and excess are historical post-trigger stats vs the market. Click a signal for its full definition and samples; history does not predict future results.

FinLab Studio

From Comfort Systems USA, Inc. to every stock like it

AI finds several complementary traits of Comfort Systems USA, Inc. across different dimensions, combines them into a multifactor strategy, and backtests it against the market.

Screen stocks like Comfort Systems USA, Inc.

Comfort Systems USA, Inc. (FIX) peers and tracking

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Comfort Systems USA, Inc. (FIX) quant signal backtests

Signals active now

Each active condition is tested against this stock’s own history and benchmarked versus the S&P 500.

Filed revenue acceleration

Active · now 50.7%

TTM revenue growth is at least 10% and improved versus the prior filed quarter; event date is the SEC filing date.

18 historical occurrences (since 2018-04-26)

Average forward return after Filed revenue acceleration

20-day: Win 82.4%, Sample 17, Median +6.28%, Excess +5.06%, Beat mkt rate 76.5%

60-day: Win 76.5%, Sample 17, Median +12.11%, Excess +11.53%, Beat mkt rate 70.6%

120-day: Win 68.8%, Sample 16, Median +26.9%, Excess +23.74%, Beat mkt rate 75%

120 days after: historical avg +28.68%

20-day +5.38%
60-day +14.06%
120-day +28.68%
20-day
60-day
120-day
Win
82.4%
76.5%
68.8%
Sample
17
17
16
Median
+6.28%
+12.11%
+26.9%
Excess
+5.06%
+11.53%
+23.74%
Beat mkt rate
76.5%
70.6%
75%

Over 16 occurrences, 120-day forward avg gained 28.68%, beat the market by 23.74 pts; win rate 68.8%.

EPS surprise beat

Active · now 8.25%

Reported EPS beat consensus estimate by at least 5%; event date is the earnings-surprise timestamp.

PEAD: Post-Earnings Announcement Drift Backtest
35 historical occurrences (since 2015-02-26)

Average forward return after EPS surprise beat

20-day: Win 76.7%, Sample 30, Median +10.15%, Excess +7.54%, Beat mkt rate 76.7%

60-day: Win 76.7%, Sample 30, Median +12.64%, Excess +9.78%, Beat mkt rate 63.3%

120-day: Win 82.8%, Sample 29, Median +26.72%, Excess +25.53%, Beat mkt rate 79.3%

120 days after: historical avg +34.29%

20-day +8.76%
60-day +14.52%
120-day +34.29%
20-day
60-day
120-day
Win
76.7%
76.7%
82.8%
Sample
30
30
29
Median
+10.15%
+12.64%
+26.72%
Excess
+7.54%
+9.78%
+25.53%
Beat mkt rate
76.7%
63.3%
79.3%

Over 29 occurrences, 120-day forward avg gained 34.29%, beat the market by 25.53 pts; win rate 82.8%.

Valuation regime and forward returns

Daily TTM P/E is converted into an expanding own-history percentile, then grouped into five valuation regimes. Forward returns use adjusted prices over the next 240 trading days.

PE percentile bandSample days240-day avg returnMedianWin rateAvg excess (vs index)
0-20 220+89.7% +89.6% 100% +57.8%
20-40 162+57.6% +61.9% 100% +45.2%
40-60 256+53.1% +36% 96.9% +46.3%
60-80 You are here243+113.7% +66% 100% +105.4%
80-100 561+105% +99.2% 99.8% +88.7%

Quarterly EPS is aligned by SEC filing date before it is forward-filled to daily prices. The expanding percentile uses only information available up to each day.

Current TTM P/E is about 26.61, placing it in the 68.0 own-history percentile, inside the 60-80 bucket.

More history: Valuation × momentum analogs, Market-wide momentum baseline, Signals not active now

Valuation × momentum analogs

Each historical day is grouped by own-history P/E tercile and 60-day momentum direction, then tested for the next 120-trading-day adjusted return.

Valuation
Momentum
Cheap (own-history bottom third)
Middle
Expensive (own-history top third)
60-day momentum up
+33.9%
Win rate 100% Excess +21.1%
179d
+21.1%
Win rate 87.3% Excess +13.3%
260d
+38.1%
Win rate 82.4% Excess +31.7%
735d
60-day momentum down
+47.9%
Win rate 100% Excess +34.9%
153d
+57.7%
Win rate 100% Excess +49.6%
111d
Now
+47.8%
Win rate 100% Excess +44.8%
124d

Currently in “Expensive (own-history top third) × 60-day momentum down”: across 124 historical days, 120-day forward avg gained 47.8%, win rate 100%, beat the market by 44.8%.

Days = trading days in this bucket; returns use adjusted prices, ex-costs. 60-day momentum: direction of this stock's price over the past 60 trading days.

Market-wide momentum baseline

Across 99,493 liquid US common-stock samples, top-quintile 6-month momentum was followed by an average 60-trading-day return of +6.42%, a 58.4% positive-return rate, and +3.08 percentage points of average excess return versus the S&P 500.

Baseline: weekly samples since 2016 where a liquid US common stock ranked in the top quintile by 126-trading-day momentum. Forward return is 60 trading days; excess return is versus S&P 500 (^GSPC).

Signals not active now

Inactive signals still show the stock-specific historical forward-return distribution for context.

52-week adjusted-price high

Pending

Adjusted close first reaches a 252-trading-day high; repeated hits within 20 days count once.

29 times historically; 60-day forward avg +13.21%, win rate 65.5%, beating the market by +9.98 pts on average.

Top-quintile 6-month momentum

Pending

The stock ranks in the top 20% of the liquid US common-stock universe by 126-day adjusted return.

Momentum Trading Strategy: A 12-1 Momentum Backtest

25 times historically; 60-day forward avg +6.04%, win rate 41.7%, beating the market by +4.74 pts on average.

Method and limits

  • Returns use us_price:adj_close, adjusted for splits and dividends where available.
  • Excess returns use world_index:^GSPC as the S&P 500 benchmark proxy.
  • Quarterly fundamentals are aligned to SEC filing dates before daily valuation studies.
  • The promoted universe starts from active NYSE/NASDAQ common stocks, then applies price and dollar-volume gates.
  • Snapshot-only tables such as analyst consensus, DCF, us_ratios, and us_key_metrics are intentionally excluded from historical evidence.
  • Overlapping event windows are descriptive distributions, not independent samples.

This page is for historical data analysis and education only. It is not investment advice. Backtests and historical return distributions do not predict future performance; evaluate risk independently before trading.