AbbVie Inc. (ABBV) vs Diamondback Energy, Inc. (FANG): Which Is the Better Buy in 2026?
As of 2026-08-03, ABBV is overvalued at $251, with a DCF intrinsic value of $178 and a margin of safety of -41%. FANG is overvalued at $203, with an intrinsic value of $128 and a margin of safety of -59%. Of the two, ABBV has the wider margin of safety.
Rewards
- ★AbbVie Inc. has maintained ROIC above 10% for 4 consecutive years, suggesting solid business economics.
- ★Gross margin of 72.8% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
- ★AbbVie Inc. scores 82/100 on the Economic Moat Score (Wide Moat), with reinvestment efficiency as the strongest competitive dimension.
- ★Gross margin of 72.2% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
Risks
- ⚠Buybacks have been poorly timed — 3 out of 4 years involved repurchases at relatively expensive valuations.
- ⚠Free cash flow has declined at a 9.8% CAGR over the past 4 years — a concerning trend.
- ⚠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.
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 →Requires positive FCF to compute implied growth rate.
What growth rate is the market pricing in at $203?
The market implies +18.0% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +20.4%, reflecting heavy growth investment.
Economic Moat Score
Learn more →Wide moat with strength across all dimensions. Reinvestment Efficiency is the standout factor.
No durable competitive advantage detected. The business shows limited evidence of pricing power, consistent returns, or capital efficiency.
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 optimistic — be cautious and ensure you have a margin of safety"
"Market is optimistic — be cautious and ensure you have a margin of safety"
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: ABBV vs FANG
Is AbbVie Inc. or Diamondback Energy, Inc. more undervalued in 2026?▼
Based on our discounted cash flow model, ABBV trades at a -40.7% margin of safety (intrinsic value $178 vs. price $251), compared to FANG's -59.1% margin of safety (intrinsic $128 vs. $203).
Which stock has a wider economic moat, AbbVie Inc. or Diamondback Energy, Inc.?▼
ABBV scores 82/100 (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. ABBV scores 2.4 (Grey zone). The Altman Z-Score is a five-factor model that predicts insolvency within two years; scores below 1.81 indicate significant distress.
Which stock has higher return on invested capital, AbbVie Inc. or Diamondback Energy, Inc.?▼
ABBV earns 27.6% 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, AbbVie Inc.'s or Diamondback Energy, Inc.'s?▼
FANG's dividend earns a safety score of 60/100 (Safe), compared to ABBV's 39/100 (Unsafe). FANG has raised its dividend for 0 consecutive years.