Arch Capital Group Ltd. (ACGL) vs Eli Lilly and Company (LLY): Which Is the Better Buy in 2026?
As of 2026-09-17, ACGL is undervalued at $96, with a DCF intrinsic value of $231 and a margin of safety of 58%. LLY is undervalued at $1157, with an intrinsic value of $1598 and a margin of safety of 28%. Of the two, ACGL has the wider margin of safety.
Rewards
- ★Arch Capital Group Ltd. scores 88/100 on the Economic Moat Score (Wide Moat), with reinvestment efficiency as the strongest competitive dimension.
- ★Free cash flow has grown at a 17.6% CAGR over the past 4 years, demonstrating strong earnings power growth.
- ★Each dollar of retained earnings has created $3.00 of earning power — management is an exceptional capital allocator.
- ★Eli Lilly and Company has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
- ★Gross margin of 83.4% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
- ★Eli Lilly and Company scores 73/100 on the Economic Moat Score (Wide Moat), with roic consistency as the strongest competitive dimension.
Risks
- ⚠Despite buyback spending, shares outstanding increased in 3 out of 4 years — stock-based compensation is offsetting repurchases.
- ⚠Altman Z-Score of 1.10 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
- ⚠FCF yield of 1.1% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
- ⚠Insiders have sold $10.0M worth of stock in the past 3 months — significant insider liquidation.
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 $96?
The market implies -6.7% Owner Earnings growth, below historical trends — potential opportunity.
Standard FCF implies a more demanding -11.2%, reflecting heavy growth investment expected to generate future returns.
What growth rate is the market pricing in at $1157?
The market implies +20.8% Owner Earnings growth, below historical trends — potential opportunity.
Standard FCF implies a more demanding +29.5%, reflecting heavy growth investment expected to generate future returns.
Economic Moat Score
Learn more →Wide moat driven primarily by reinvestment efficiency. Margin Stability is the area most vulnerable to competitive pressure.
Wide moat driven primarily by roic consistency. Reinvestment Efficiency 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: ACGL vs LLY
Is Arch Capital Group Ltd. or Eli Lilly and Company more undervalued in 2026?▼
Based on our discounted cash flow model, ACGL trades at a 58.5% margin of safety (intrinsic value $231 vs. price $96), compared to LLY's 27.6% margin of safety (intrinsic $1598 vs. $1157).
Which stock has a wider economic moat, Arch Capital Group Ltd. or Eli Lilly and Company?▼
ACGL scores 88/100 (Wide moat), while LLY scores 73/100 (Wide moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.
Is Arch Capital Group Ltd. in financial distress?▼
ACGL's Altman Z-Score of 1.1 places it in the Distress zone, signaling elevated bankruptcy risk. LLY scores 8.7 (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, Arch Capital Group Ltd. or Eli Lilly and Company?▼
Arch Capital Group Ltd. (ACGL) generates a 18.7% free cash flow yield, compared to Eli Lilly and Company's 1.1%. 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, Arch Capital Group Ltd. or Eli Lilly and Company?▼
LLY earns 38.4% ROIC versus ACGL's 14.3%. 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, Arch Capital Group Ltd.'s or Eli Lilly and Company's?▼
ACGL's dividend earns a safety score of 85/100 (Very Safe), compared to LLY's 64/100 (Safe). ACGL has raised its dividend for 0 consecutive years.