SPY vs TDG: SPDR S&P 500 ETF Trust vs TransDigm Group Incorporated Historical Returns & Investment Comparison

This SPY vs TDG comparison analyzes the historical stock performance of SPDR S&P 500 ETF Trust and TransDigm Group Incorporated 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 SPDR S&P 500 ETF Trust and TransDigm Group Incorporated have historically performed against each other.

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Performance Summary

$10,000 invested from 1993 to 2025 (33 years)

Head-to-Head Record

5
SPY Wins
0
Ties
15
TDG Wins

Over the 20-year comparison period, SPDR S&P 500 ETF Trust outperformed TransDigm Group Incorporated in 5 years, while TransDigm Group Incorporated outperformed SPDR S&P 500 ETF Trust in 15 years.

SPY - SPDR S&P 500 ETF Trust

Average Annual Return:+11.71%
Best Year:+37.39% (1995)
Worst Year:-36.24% (2008)
Win Rate:81.8% (27/33 years)
Total Value:$250,597.02
Total Gain:+$240,597.02 (+2405.97%)

TDG - TransDigm Group Incorporated

Average Annual Return:+31.69%
Best Year:+84.63% (2019)
Worst Year:-25.63% (2008)
Win Rate:95.0% (19/20 years)
Total Value:$1,563,695.42
Total Gain:+$1,553,695.42 (+15536.95%)

Overall Winner: TDG with an average annual return of 31.69% (vs 11.71% for SPY)

Understanding SPY vs TDG Performance

When comparing SPDR S&P 500 ETF Trust and TransDigm Group Incorporated, investors should consider multiple factors beyond just total returns. Volatility, consistency of growth, dividend payments, and sector-specific risks all play crucial roles in determining which stock might be better suited for your investment strategy and risk tolerance.

Historical performance data shows how each stock responded to market downturns, economic expansions, and company-specific events. While past performance doesn't guarantee future results, understanding these patterns can help inform investment decisions and portfolio allocation strategies.

Cumulative Growth Comparison

A $10,000 investment in SPDR S&P 500 ETF Trust grew to $250,597, compared to $1,563,695 for TransDigm Group Incorporated over the same period.

Year-by-Year Comparison

YearSPY ReturnSPY CumulativeTDG ReturnTDG CumulativeDifferenceWinner
1993 (Start)-$10,000.00-$10,000.00-Initial Investment
1994+8.71%$10,870.91---Tie
1995+0.67%$10,943.47---Tie
1996+37.39%$15,035.16---Tie
1997+21.20%$18,223.19---Tie
1998+33.14%$24,261.81---Tie
1999+28.03%$31,063.11---Tie
2000+20.66%$37,482.18---Tie
2001-8.85%$34,165.23---Tie
2002-10.13%$30,703.75---Tie
2003-22.42%$23,820.14---Tie
2004+24.18%$29,580.86---Tie
2005+10.75%$32,760.13---Tie
2006+5.32%$34,504.59---Tie
2007+13.84%$39,281.03+10.00%$11,000.00+3.84% (SPY)SPY
2008+5.33%$41,375.53+77.76%$19,554.11-72.43% (TDG)TDG
2009-36.24%$26,382.38-25.63%$14,542.13-10.61% (TDG)TDG
2010+22.65%$32,359.23+67.82%$24,404.62-45.17% (TDG)TDG
2011+13.14%$36,610.39+45.77%$35,574.42-32.63% (TDG)TDG
2012+0.85%$36,922.44+29.74%$46,152.68-28.88% (TDG)TDG
2013+14.17%$42,154.69+58.78%$73,283.01-44.61% (TDG)TDG
2014+29.00%$54,380.19+33.24%$97,645.36-4.24% (TDG)TDG
2015+14.56%$62,298.86+41.12%$137,796.58-26.56% (TDG)TDG
2016+1.29%$63,101.60+15.52%$159,189.01-14.24% (TDG)TDG
2017+13.59%$71,674.43+18.40%$188,476.58-4.81% (TDG)TDG
2018+20.78%$86,569.38+19.09%$224,449.45+1.70% (SPY)SPY
2019-5.25%$82,026.91+23.61%$277,439.14-28.86% (TDG)TDG
2020+31.09%$107,527.02+84.63%$512,236.56-53.54% (TDG)TDG
2021+17.24%$126,059.55+9.06%$558,645.14+8.18% (SPY)SPY
2022+30.51%$164,514.60+8.27%$604,854.37+22.23% (SPY)SPY
2023-18.65%$133,838.54+0.93%$610,484.14-19.58% (TDG)TDG
2024+26.71%$169,585.78+67.60%$1,023,174.02-40.89% (TDG)TDG
2025+25.59%$212,981.61+34.85%$1,379,763.01-9.26% (TDG)TDG
2026+17.66%$250,597.02+13.33%$1,563,695.42+4.33% (SPY)SPY

Annual returns include dividends and stock splits. Cumulative values show growth of $10,000 invested from the first year. Positive difference means SPY outperformed TDG that year.

Company Profiles

1

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

  • ETF
    Passive investment vehicle tracking the S&P 500.
2

TransDigm Group Incorporated

TDG

TransDigm is a leading global designer, producer and supplier of highly engineered aircraft components for use on nearly all commercial and military aircraft in service today.

Key Innovations

  • Proprietary aftermarket component strategy

Business Segments

  • Power & Control
    Engine and flight control systems.
  • Airframe
    Airframe systems and components.
  • Non-aviation
    Products for other niche markets.

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.