Diamondback Energy, Inc. (FANG) vs QUALCOMM Incorporated (QCOM): Which Is the Better Buy in 2026?
As of 2026-06-19, FANG is overvalued at $184, with a DCF intrinsic value of $128 and a margin of safety of -44%. QCOM is overvalued at $226, with an intrinsic value of $128 and a margin of safety of -76%. Of the two, FANG has the wider margin of safety.
Rewards
- ★Gross margin of 72.2% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
- ★QUALCOMM Incorporated has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
- ★QUALCOMM Incorporated scores 73/100 on the Economic Moat Score (Wide Moat), with reinvestment efficiency as the strongest competitive dimension.
- ★Free cash flow has grown at a 23.3% CAGR over the past 4 years, demonstrating strong earnings power growth.
Risks
- ⚠ROIC has declined by 16.4 percentage points over the past 4 years, which may signal competitive erosion.
- ⚠Diamondback Energy, Inc. scores only 14/100 on the Economic Moat Score, suggesting limited durable competitive advantages.
- ⚠Share count has increased by 58% over the past 4 years, diluting existing shareholders.
- ⚠FCF yield of 5.4% suggests reasonable valuation assuming continued moderate growth.
- ⚠15 insider sales with no purchases over the past 12 months — a persistent pattern of insider selling.
Key Valuation Metrics
Learn more →Historical Fundamentals
Learn more →Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.
$1 Retained Earnings Test
Learn more →> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
Discounted Cash Flow (DCF) Analysis
Learn more →Reverse DCF — Market-Implied Growth
Learn more →What growth rate is the market pricing in at $184?
The market implies +16.9% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +19.3%, reflecting heavy growth investment.
What growth rate is the market pricing in at $226?
The market implies +17.5% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +7.0%, reflecting heavy growth investment.
Economic Moat Score
Learn more →No durable competitive advantage detected. The business shows limited evidence of pricing power, consistent returns, or capital efficiency.
Wide moat driven primarily by reinvestment efficiency. Revenue Predictability is the area most vulnerable to competitive pressure.
Forensic Accounting
Learn more →M-Score Trend
M-Score Trend
Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
Ownership Breakdown
Learn more →High insider ownership aligns management incentives with shareholders. Institutional concentration can indicate smart-money conviction but also crowding risk.
Insider Buying Activity
Learn more →Open market purchases · includes direct & indirect ownership · excludes option exercises.
Insider Selling Activity
Learn more →Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives.
🎭 Mr. Market's Mood
Learn more →"Market is pricing this stock without strong emotion in either direction"
"Market is pricing this stock without strong emotion in either direction"
Composite sentiment score based on market signals. Inspired by Buffett’s "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
⚖️ Buffett Signal
Learn more →The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.
The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.
Frequently Asked Questions: FANG vs QCOM
Is Diamondback Energy, Inc. or QUALCOMM Incorporated more undervalued in 2026?▼
Based on our discounted cash flow model, FANG trades at a -43.9% margin of safety (intrinsic value $128 vs. price $184), compared to QCOM's -76.1% margin of safety (intrinsic $128 vs. $226).
Which stock has a wider economic moat, Diamondback Energy, Inc. or QUALCOMM Incorporated?▼
QCOM scores 73/100 (Wide moat), while FANG scores 14/100 (None moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.
Is Diamondback Energy, Inc. in financial distress?▼
FANG's Altman Z-Score of 1.4 places it in the Distress zone, signaling elevated bankruptcy risk. QCOM scores 6.5 (Safe zone). The Altman Z-Score is a five-factor model that predicts insolvency within two years; scores below 1.81 indicate significant distress.
Which company has better free cash flow, Diamondback Energy, Inc. or QUALCOMM Incorporated?▼
QUALCOMM Incorporated (QCOM) generates a 5.4% free cash flow yield, compared to Diamondback Energy, Inc.'s 2.7%. A higher FCF yield means the business converts more of its market value into cash that can be returned to shareholders or reinvested.
Which stock has higher return on invested capital, Diamondback Energy, Inc. or QUALCOMM Incorporated?▼
QCOM earns 18.2% ROIC versus FANG's 1.2%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.
Which dividend is safer, Diamondback Energy, Inc.'s or QUALCOMM Incorporated's?▼
QCOM's dividend earns a safety score of 84/100 (Very Safe), compared to FANG's 60/100 (Safe). QCOM has raised its dividend for 3 consecutive years.