Mastercard Incorporated (MA) vs State Street Corporation (STT): Which Is the Better Buy in 2026?
As of 2026-11-01, MA is overvalued at $638, with a DCF intrinsic value of $563 and a margin of safety of -13%. STT is undervalued at $170, with an intrinsic value of $704 and a margin of safety of 76%. Of the two, STT has the wider margin of safety.
Rewards
- ★Mastercard Incorporated has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
- ★Gross margin of 100.0% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
- ★Mastercard Incorporated scores 99/100 on the Economic Moat Score (Wide Moat), with roic consistency as the strongest competitive dimension.
- ★State Street Corporation scores 74/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.
- ★Share count has been reduced by 20% over the past 4 years through buybacks, increasing each share's claim on earnings.
- ★PEG ratio of 0.63 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
Risks
- ⚠FCF yield of 3.0% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
- ⚠High leverage (2.00x net debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
- ⚠9 insider sales totaling $24.1M with no purchases in the past 3 months — insiders are reducing their exposure.
- ⚠Gross margin of 0.0% is low, suggesting a competitive or commodity-like market with limited pricing power.
- ⚠Altman Z-Score of 0.22 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
- ⚠Insiders have sold $3.6M 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 $638?
The market implies +16.4% Owner Earnings growth, roughly in line with history — reasonably priced.
Standard FCF implies +15.0%, reflecting ongoing growth investment.
Requires positive FCF to compute implied growth rate.
Economic Moat Score
Learn more →Wide moat with strength across all dimensions. ROIC Consistency is the standout factor.
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 optimistic — be cautious and ensure you have a margin of safety"
"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: MA vs STT
Is Mastercard Incorporated or State Street Corporation more undervalued in 2026?▼
Based on our discounted cash flow model, STT trades at a 75.9% margin of safety (intrinsic value $704 vs. price $170), compared to MA's -13.3% margin of safety (intrinsic $563 vs. $638).
Which stock has a wider economic moat, Mastercard Incorporated or State Street Corporation?▼
MA scores 99/100 (Wide moat), while STT scores 74/100 (Wide moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.
Is State Street Corporation in financial distress?▼
STT's Altman Z-Score of 0.2 places it in the Distress zone, signaling elevated bankruptcy risk. MA scores 10.6 (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 stock has higher return on invested capital, Mastercard Incorporated or State Street Corporation?▼
MA earns 56.6% ROIC versus STT's 8.1%. 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, Mastercard Incorporated's or State Street Corporation's?▼
STT's dividend earns a safety score of 94/100 (Very Safe), compared to MA's 94/100 (Very Safe). STT has raised its dividend for 3 consecutive years.