ILMN vs SPY: Illumina, Inc. vs SPDR S&P 500 ETF Trust Historical Returns & Investment Comparison

This ILMN vs SPY comparison analyzes the historical stock performance of Illumina, 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 annual returns and consistency across market cycles.

Use the interactive calculator below to adjust the investment amount and time period, visualizing how Illumina, Inc. and SPDR S&P 500 ETF Trust have historically performed against each other.

Company Profiles

1

Illumina, Inc.

ILMN

Illumina, Inc. is an American biotechnology company that specializes in developing, manufacturing, and marketing integrated systems for the analysis of genetic variation and biological function. It operates primarily in the life sciences tools and services sector, focusing on genomic sequencing and array-based solutions that are utilized by a wide range of academic, government, pharmaceutical, biotechnology, and clinical institutions globally.

Key Innovations

  • Pioneering and continuously advancing DNA Sequencing Platforms (e.g., NovaSeq, HiSeq, MiSeq, MiniSeq, iSeq, NextSeq) utilizing sophisticated technologies like bridge amplification and reversible terminators.
  • Introduction of the NovaSeq X Plus in September 2022, a high-throughput sequencing system capable of sequencing up to 20,000 genomes per year.
  • Development of a comprehensive bioinformatics suite and software solutions that facilitate the analysis and interpretation of vast amounts of genetic data.
  • Maintaining a dominant position in the genomics market, driven by its next-generation sequencing (NGS) technology.

Business Segments

  • Genomic Sequencing
    Provides DNA sequencing platforms and consumables for various applications, including whole-genome sequencing, targeted sequencing, and RNA sequencing.
  • Microarray Solutions
    Offers microarrays for SNP genotyping, gene expression, and protein analysis, providing a cost-effective way to analyze genetic markers.
  • Kits and Reagents
    Develops and supplies a comprehensive range of kits and reagents, including library preparation kits, for diverse DNA and RNA inquiries.
2

SPDR S&P 500 ETF Trust

SPY

SPDR S&P 500 ETF Trust (SPY) is an exchange-traded fund managed by State Street Global Advisors that provides investors with targeted exposure to U.S. Large-Cap Equity by tracking the S&P 500 Index. The fund is structured to offer efficient, liquid, and low-cost access to its underlying asset class, utilizing continuous creation and redemption mechanisms to maintain tight alignment between market price and Net Asset Value (NAV). Widely utilized by institutional wealth managers, pension funds, and retail investors alike, SPY plays a central role in modern portfolio construction, asset allocation, and tactical risk management.

Key Innovations

  • Intra-day secondary market liquidity for benchmark S&P 500 Index exposure.
  • In-kind creation and redemption process mitigating embedded tax capital gains distributions.
  • Ultra-low expense ratio cost structure enabling compounding long-term investment returns.
  • Institutional-grade portfolio transparency with daily published holding disclosure.

Business Segments

  • Core Equity / Asset Portfolio
    Direct holdings of underlying constituent securities comprising the S&P 500 Index.
  • Creation and Redemption Mechanism
    Operational framework facilitating institutional Authorized Participants in exchanging basket securities for fund shares.
  • Securities Lending & Yield Optimization
    Program generating incremental income by lending portfolio securities to institutional counterparties under collateralized agreements.

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: Prices are dividend-adjusted, reflecting the effect of dividend payments over time
  • 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.