Diamondback Energy Inc (FANG)vsNRG Energy Inc. (NRG)
FANG
Diamondback Energy Inc
$188.70
-0.92%
ENERGY · Cap: $53.58B
NRG
NRG Energy Inc.
$138.11
-2.64%
UTILITIES · Cap: $30.18B
Smart Verdict
WallStSmart Research — data-driven comparison
NRG Energy Inc. generates 112% more annual revenue ($30.71B vs $14.47B). NRG leads profitability with a 2.8% profit margin vs 2.0%. NRG appears more attractively valued with a PEG of 1.34. NRG earns a higher WallStSmart Score of 56/100 (C).
FANG
Hold41
out of 100
Grade: D
NRG
Buy56
out of 100
Grade: C
Intrinsic Value Comparison
Multi-model valuation · Graham Formula
Margin of Safety
+44.7%
Fair Value
$305.77
Current Price
$188.70
$117.07 discount
Margin of Safety
+58.9%
Fair Value
$391.20
Current Price
$138.11
$253.09 discount
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Reasonable price relative to book value
Large-cap with strong market position
Every $100 of equity generates 42 in profit
Areas to Watch
ROE of 0.5% — below average capital efficiency
2.0% margin — thin
Weak financial health signals
Expensive relative to growth rate
Distress zone — elevated risk
2.8% margin — thin
Operating margin of 4.3%
Premium valuation, high expectations priced in
Comparative Analysis Report
WallStSmart ResearchBull Case : FANG
The strongest argument for FANG centers on Price/Book, Market Cap.
Bull 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.
Bear Case : FANG
The primary concerns for FANG are Return on Equity, Profit Margin, Piotroski F-Score. A P/E of 196.3x leaves little room for execution misses. Thin 2.0% margins leave little buffer for downturns.
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.
Key Dynamics to Monitor
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.
FANG generates stronger free cash flow (895M), providing more financial flexibility.
Monitor OIL & GAS E&P industry trends, competitive dynamics, and regulatory changes.
Bottom Line
NRG scores higher overall (56/100 vs 41/100) and 13.7% revenue growth. FANG offers better value entry with a 44.7% margin of safety. Both earn "Buy" and "Hold" ratings respectively — the choice depends on your investment horizon and risk tolerance.
This analysis is generated from publicly available financial data. Not financial advice.
Diamondback Energy Inc
ENERGY · OIL & GAS E&P · USA
Diamondback Energy is a company engaged in hydrocarbon exploration and headquartered in Midland, Texas.
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.
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