NRG Energy Inc. (NRG)vsWilliams Companies Inc (WMB)
NRG
NRG Energy Inc.
$138.11
-2.64%
UTILITIES · Cap: $30.18B
WMB
Williams Companies Inc
$71.96
-1.36%
ENERGY · Cap: $89.22B
Smart Verdict
WallStSmart Research — data-driven comparison
NRG Energy Inc. generates 154% more annual revenue ($30.71B vs $12.11B). WMB leads profitability with a 23.1% profit margin vs 2.8%. NRG appears more attractively valued with a PEG of 1.34. WMB earns a higher WallStSmart Score of 65/100 (C+).
NRG
Buy56
out of 100
Grade: C
WMB
Buy65
out of 100
Grade: C+
Intrinsic Value Comparison
Multi-model valuation · Graham Formula
Margin of Safety
+58.9%
Fair Value
$391.20
Current Price
$138.11
$253.09 discount
Intrinsic value data unavailable for WMB.
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Every $100 of equity generates 42 in profit
Strong operational efficiency at 33.6%
Large-cap with strong market position
Keeps 23 of every $100 in revenue as profit
Earnings expanding 25.0% YoY
Areas to Watch
Distress zone — elevated risk
2.8% margin — thin
Operating margin of 4.3%
Premium valuation, high expectations priced in
Expensive relative to growth rate
Premium valuation, high expectations priced in
Weak financial health signals
Distress zone — elevated risk
Comparative Analysis Report
WallStSmart ResearchBull Case : NRG
The strongest argument for NRG centers on Return on Equity. Revenue growth of 13.7% demonstrates continued momentum. PEG of 1.34 suggests the stock is reasonably priced for its growth.
Bull Case : WMB
The strongest argument for WMB centers on Operating Margin, Market Cap, Profit Margin. Profitability is solid with margins at 23.1% and operating margin at 33.6%.
Bear Case : NRG
The primary concerns for NRG are Altman Z-Score, Profit Margin, Operating Margin. A P/E of 157.6x leaves little room for execution misses. Thin 2.8% margins leave little buffer for downturns.
Bear Case : WMB
The primary concerns for WMB are PEG Ratio, P/E Ratio, Piotroski F-Score.
Key Dynamics to Monitor
NRG profiles as a value stock while WMB is a mature play — different risk/reward profiles.
NRG carries more volatility with a beta of 1.31 — expect wider price swings.
NRG is growing revenue faster at 13.7% — sustainability is the question.
WMB generates stronger free cash flow (244M), providing more financial flexibility.
Bottom Line
WMB scores higher overall (65/100 vs 56/100), backed by strong 23.1% margins. NRG offers better value entry with a 58.9% margin of safety. 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.
NRG Energy Inc.
UTILITIES · UTILITIES - INDEPENDENT POWER PRODUCERS · USA
NRG Energy, Inc. is a large American energy company, headquartered in Houston, Texas. It was formerly the wholesale arm of Northern States Power Company (NSP), which became Xcel Energy, but became independent in 2000. NRG Energy is involved in energy generation and retail electricity.
Williams Companies Inc
ENERGY · OIL & GAS MIDSTREAM · USA
The Williams Companies, Inc., is an American energy company based in Tulsa, Oklahoma. Its core business is natural gas processing and transportation, with additional petroleum and electricity generation assets.
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