American Tower Corporation (AMT) vs Lockheed Martin Corporation (LMT): Which Is the Better Buy in 2026?
As of 2026-06-19, AMT is overvalued at $176, with a DCF intrinsic value of $21 and a margin of safety of -753%. LMT is overvalued at $511, with an intrinsic value of $381 and a margin of safety of -34%. Of the two, LMT has the wider margin of safety.
Rewards
- ★Gross margin of 74.0% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
- ★Free cash flow has grown at a 27.6% CAGR over the past 4 years, demonstrating strong earnings power growth.
- ★Return on equity has consistently exceeded 20% over 4 years, indicating efficient use of shareholder capital.
- ★Lockheed Martin Corporation has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
- ★Lockheed Martin Corporation scores 74/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.
- ★Return on equity has consistently exceeded 20% over 4 years, indicating efficient use of shareholder capital.
Risks
- ⚠FCF yield of 5.6% suggests reasonable valuation assuming continued moderate growth.
- ⚠High leverage (4.29x net debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
- ⚠Net debt/EBITDA of 6.2x indicates heavy leverage — it would take over 4 years of EBITDA to pay off net debt.
- ⚠Gross margin of 9.9% is low, suggesting a competitive or commodity-like market with limited pricing power.
- ⚠FCF yield of 5.9% suggests reasonable valuation assuming continued moderate growth.
- ⚠High leverage (2.51x net debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
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 $176?
The market implies +18.3% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +11.9%, reflecting heavy growth investment.
What growth rate is the market pricing in at $511?
The market implies +11.8% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +7.5%, reflecting heavy growth investment.
Economic Moat Score
Learn more →Narrow moat with revenue predictability as the key competitive advantage. Improving roic consistency would strengthen the moat.
Wide moat driven primarily by revenue predictability. Margin Stability 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 pessimistic — investigate whether fears are temporary or structural"
"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: AMT vs LMT
Is American Tower Corporation or Lockheed Martin Corporation more undervalued in 2026?▼
Based on our discounted cash flow model, LMT trades at a -34.0% margin of safety (intrinsic value $381 vs. price $511), compared to AMT's -753.4% margin of safety (intrinsic $21 vs. $176).
Which stock has a wider economic moat, American Tower Corporation or Lockheed Martin Corporation?▼
LMT scores 74/100 (Wide moat), while AMT scores 51/100 (Narrow moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.
Is American Tower Corporation in financial distress?▼
AMT's Altman Z-Score of 1.2 places it in the Distress zone, signaling elevated bankruptcy risk. LMT scores 3.3 (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, American Tower Corporation or Lockheed Martin Corporation?▼
Lockheed Martin Corporation (LMT) generates a 5.9% free cash flow yield, compared to American Tower Corporation's 5.6%. 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, American Tower Corporation or Lockheed Martin Corporation?▼
LMT earns 23.2% ROIC versus AMT's 7.1%. 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, American Tower Corporation's or Lockheed Martin Corporation's?▼
LMT's dividend earns a safety score of 84/100 (Very Safe), compared to AMT's 24/100 (Unsafe). LMT has raised its dividend for 3 consecutive years.