BLK vs SPY: BlackRock, Inc. vs SPDR S&P 500 ETF Trust Historical Returns & Investment Comparison
This BLK vs SPY comparison analyzes the historical stock performance of BlackRock, Inc. and SPDR S&P 500 ETF Trust side-by-side. Using real, adjusted market data, this tool shows how identical investments in both stocks would have performed over time—highlighting differences in returns, volatility, and consistency across market cycles.
Use the interactive calculator below to adjust the investment amount and time period, visualizing how BlackRock, Inc. and SPDR S&P 500 ETF Trust have historically performed against each other.
Company Profiles
BlackRock, Inc.
BLK
BlackRock, Inc. is an American multinational investment company and the world's largest asset manager. BlackRock provides a diverse range of services including investment management, risk management, and advisory services to institutional and retail clients worldwide.
Key Innovations
- ✓Pioneered risk-management-focused asset management, integrating sophisticated analytics into investment decisions.
- ✓Developed the Aladdin platform, a proprietary risk management and analytics system that is widely used across the financial industry.
- ✓Popularized exchange-traded funds (ETFs) through its iShares product line.
Business Segments
- Investment ManagementOffers a wide range of investment strategies and products, including equity, fixed income, cash management, and alternative investments.
- Technology ServicesProvides Aladdin, a comprehensive investment management and risk analytics platform, to external clients.
SPDR S&P 500 ETF Trust
SPY
SPY is the first exchange-traded fund (ETF) listed in the US. It is designed to track the S&P 500 Index, which measures the performance of the large-cap segment of the US equity market.
Key Innovations
- ✓First US-listed ETF
Business Segments
- ETFPassive investment vehicle tracking the S&P 500.
How This Comparison Works
Our stock comparison tool uses adjusted closing prices to calculate year-by-year returns for both stocks. This ensures an apples-to-apples comparison that accounts for:
- ✓Dividends: All dividend payments are reinvested
- ✓Stock splits: Historical prices are adjusted for all splits
- ✓Head-to-head record: Shows which stock outperformed each year
- ✓Statistical analysis: Average returns, best/worst years, and win rates
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Important Disclaimer
This comparison tool is for educational and informational purposes only and does not constitute financial, investment, or trading advice. Past performance is not indicative of future results. Historical returns include dividends and stock splits but do not account for taxes, fees, inflation, or individual circumstances. Stock market investments carry risk, including the potential loss of principal. Always consult with a qualified financial advisor before making investment decisions. The data presented is based on historical market data and may contain inaccuracies or delays.