WallStSmart

Comfort Systems USA Inc (FIX)vsVistra Corp. (VST)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Vistra Corp. generates 92% more annual revenue ($19.45B vs $10.14B). FIX leads profitability with a 12.1% profit margin vs 11.5%. VST appears more attractively valued with a PEG of 0.46. VST earns a higher WallStSmart Score of 68/100 (B-).

FIX

Buy

62

out of 100

Grade: C+

Growth: 8.0Profit: 8.0Value: 5.0Quality: 7.5
Piotroski: 5/9Altman Z: 3.14

VST

Strong Buy

68

out of 100

Grade: B-

Growth: 4.7Profit: 8.0Value: 7.0Quality: 2.5
Piotroski: 2/9Altman Z: 0.60

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

FIX6 strengths · Avg: 9.0/10
Return on EquityProfitability
43.5%10/10

Every $100 of equity generates 43 in profit

Altman Z-ScoreHealth
3.1410/10

Safe zone — low bankruptcy risk

Market CapQuality
$68.68B9/10

Large-cap with strong market position

Debt/EquityHealth
0.129/10

Conservative balance sheet, low leverage

PEG RatioValuation
0.938/10

Growing faster than its price suggests

EPS GrowthGrowth
38.8%8/10

Earnings expanding 38.8% YoY

VST5 strengths · Avg: 9.4/10
PEG RatioValuation
0.4610/10

Growing faster than its price suggests

Return on EquityProfitability
40.0%10/10

Every $100 of equity generates 40 in profit

Revenue GrowthGrowth
43.4%10/10

Revenue surging 43.4% year-over-year

Market CapQuality
$53.10B9/10

Large-cap with strong market position

Operating MarginProfitability
26.6%8/10

Strong operational efficiency at 26.6%

Areas to Watch

FIX3 concerns · Avg: 2.7/10
Revenue GrowthGrowth
1.0%4/10

1.0% revenue growth

P/E RatioValuation
56.5x2/10

Premium valuation, high expectations priced in

Price/BookValuation
100.4x2/10

Trading at 100.4x book value

VST4 concerns · Avg: 3.3/10
P/E RatioValuation
26.3x4/10

Moderate valuation

Price/BookValuation
19.8x4/10

Trading at 19.8x book value

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

EPS GrowthGrowth
-52.3%2/10

Earnings declined 52.3%

Comparative Analysis Report

WallStSmart Research

Bull Case : FIX

The strongest argument for FIX centers on Return on Equity, Altman Z-Score, Market Cap. PEG of 0.93 suggests the stock is reasonably priced for its growth.

Bull Case : VST

The strongest argument for VST centers on PEG Ratio, Return on Equity, Revenue Growth. Revenue growth of 43.4% demonstrates continued momentum. PEG of 0.46 suggests the stock is reasonably priced for its growth.

Bear Case : FIX

The primary concerns for FIX are Revenue Growth, P/E Ratio, Price/Book. A P/E of 56.5x leaves little room for execution misses.

Bear Case : VST

The primary concerns for VST are P/E Ratio, Price/Book, Piotroski F-Score. Debt-to-equity of 3.56 is elevated, increasing financial risk.

Key Dynamics to Monitor

FIX profiles as a value stock while VST is a growth play — different risk/reward profiles.

FIX carries more volatility with a beta of 1.67 — expect wider price swings.

VST is growing revenue faster at 43.4% — sustainability is the question.

FIX generates stronger free cash flow (241M), providing more financial flexibility.

Bottom Line

VST scores higher overall (68/100 vs 62/100) and 43.4% revenue growth. Both earn "Strong Buy" and "Buy" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

Comfort Systems USA Inc

INDUSTRIALS · ENGINEERING & CONSTRUCTION · USA

Comfort Systems USA, Inc. provides mechanical and electrical installation, renovation, maintenance, repair and replacement services for the mechanical and electrical service industry in the United States. The company is headquartered in Houston, Texas.

Vistra Corp.

UTILITIES · UTILITIES - INDEPENDENT POWER PRODUCERS · USA

Vistra Corp. The company is headquartered in Irving, Texas.

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