CMCSA vs SPY: Comcast Corporation vs SPDR S&P 500 ETF Trust Historical Returns & Investment Comparison
This CMCSA vs SPY comparison analyzes the historical stock performance of Comcast Corporation 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 Comcast Corporation and SPDR S&P 500 ETF Trust have historically performed against each other.
Company Profiles
Comcast Corporation
CMCSA
Comcast Corporation is an American multinational mass media, telecommunications, and entertainment conglomerate. It is a leading provider of broadband connectivity, cable television, mobile, and voice services to residential and business customers, and also operates television networks, film studios, and theme parks.
Key Innovations
- ✓Pioneered in the cable television industry, expanding into broadband internet and voice services.
- ✓Successfully transformed into a diversified media and entertainment conglomerate through strategic acquisitions like NBCUniversal and Sky Group.
Business Segments
- Cable CommunicationsPrimarily consists of the Xfinity brand, providing residential cable services (internet, video, voice) and business services.
- NBCUniversalComprises the company's media and entertainment businesses, including television networks (NBC, Telemundo), Universal Pictures film studio, and Universal Destinations & Experiences theme parks.
- SkyA leading media and entertainment company in Europe, providing pay-TV, broadband, and mobile services.
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.