WallStSmart

Atmos Energy Corporation (ATO)vsVistra Energy Corp (VST)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Vistra Energy Corp generates 264% more annual revenue ($17.74B vs $4.87B). ATO leads profitability with a 25.7% profit margin vs 5.3%. VST appears more attractively valued with a PEG of 1.36. ATO earns a higher WallStSmart Score of 64/100 (C+).

ATO

Buy

64

out of 100

Grade: C+

Growth: 5.3Profit: 8.0Value: 5.0Quality: 4.3
Piotroski: 2/9Altman Z: 1.10

VST

Buy

53

out of 100

Grade: C-

Growth: 3.3Profit: 6.0Value: 3.3Quality: 2.5
Piotroski: 2/9Altman Z: 0.73
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

Intrinsic value data unavailable for ATO.

VSTSignificantly Overvalued (-54.4%)

Margin of Safety

-54.4%

Fair Value

$100.34

Current Price

$157.84

$57.50 premium

UndervaluedFair: $100.34Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

ATO3 strengths · Avg: 9.0/10
Operating MarginProfitability
38.9%10/10

Strong operational efficiency at 38.9%

Profit MarginProfitability
25.7%9/10

Keeps 26 of every $100 in revenue as profit

Price/BookValuation
2.2x8/10

Reasonable price relative to book value

VST1 strengths · Avg: 9.0/10
Market CapQuality
$53.44B9/10

Large-cap with strong market position

Areas to Watch

ATO4 concerns · Avg: 2.8/10
PEG RatioValuation
2.234/10

Expensive relative to growth rate

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

Free Cash FlowQuality
$-725.29M2/10

Negative free cash flow — burning cash

Altman Z-ScoreHealth
1.102/10

Distress zone — elevated risk

VST4 concerns · Avg: 2.5/10
Profit MarginProfitability
5.3%3/10

5.3% margin — thin

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

P/E RatioValuation
72.4x2/10

Premium valuation, high expectations priced in

Price/BookValuation
20.4x2/10

Trading at 20.4x book value

Comparative Analysis Report

WallStSmart Research

Bull Case : ATO

The strongest argument for ATO centers on Operating Margin, Profit Margin, Price/Book. Profitability is solid with margins at 25.7% and operating margin at 38.9%. Revenue growth of 14.2% demonstrates continued momentum.

Bull Case : VST

The strongest argument for VST centers on Market Cap. Revenue growth of 13.6% demonstrates continued momentum. PEG of 1.36 suggests the stock is reasonably priced for its growth.

Bear Case : ATO

The primary concerns for ATO are PEG Ratio, Piotroski F-Score, Free Cash Flow.

Bear Case : VST

The primary concerns for VST are Profit Margin, Piotroski F-Score, P/E Ratio. A P/E of 72.4x leaves little room for execution misses. Debt-to-equity of 3.36 is elevated, increasing financial risk.

Key Dynamics to Monitor

ATO profiles as a mature stock while VST is a value play — different risk/reward profiles.

VST carries more volatility with a beta of 1.50 — expect wider price swings.

ATO is growing revenue faster at 14.2% — sustainability is the question.

VST generates stronger free cash flow (-82M), providing more financial flexibility.

Bottom Line

ATO scores higher overall (64/100 vs 53/100), backed by strong 25.7% margins and 14.2% revenue growth. Both earn "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.

Atmos Energy Corporation

UTILITIES · UTILITIES - REGULATED GAS · USA

Atmos Energy Corporation, headquartered in Dallas, Texas, is one of the United States' largest natural-gas-only distributors.

Vistra Energy Corp

UTILITIES · UTILITIES - INDEPENDENT POWER PRODUCERS · USA

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

Visit Website →

Want to dig deeper into these stocks?