SPIAX vs. MSIGX
Compare and contrast key facts about Invesco S&P 500 Index A (SPIAX) and Invesco Main Street Fund (MSIGX).
SPIAX is a passively managed fund by Invesco that tracks the performance of the S&P 500. It was launched on Sep 26, 1997. MSIGX is managed by Invesco. It was launched on Feb 3, 1988.
Performance
SPIAX vs. MSIGX - Performance Comparison
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SPIAX vs. MSIGX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SPIAX Invesco S&P 500 Index A | -7.17% | 17.23% | 24.34% | 25.63% | -18.56% | 27.99% | 17.84% | 30.78% | -4.97% | 21.13% |
MSIGX Invesco Main Street Fund | -6.99% | 16.02% | 23.66% | 23.06% | -20.21% | 27.37% | 14.41% | 22.49% | -8.25% | 16.79% |
Returns By Period
The year-to-date returns for both investments are quite close, with SPIAX having a -7.17% return and MSIGX slightly higher at -6.99%. Over the past 10 years, SPIAX has outperformed MSIGX with an annualized return of 13.13%, while MSIGX has yielded a comparatively lower 10.63% annualized return.
SPIAX
- 1D
- -0.39%
- 1M
- -7.71%
- YTD
- -7.17%
- 6M
- -4.82%
- 1Y
- 13.84%
- 3Y*
- 16.56%
- 5Y*
- 10.82%
- 10Y*
- 13.13%
MSIGX
- 1D
- 2.90%
- 1M
- -5.77%
- YTD
- -6.99%
- 6M
- -5.96%
- 1Y
- 12.31%
- 3Y*
- 15.27%
- 5Y*
- 8.87%
- 10Y*
- 10.63%
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SPIAX vs. MSIGX - Expense Ratio Comparison
SPIAX has a 0.54% expense ratio, which is lower than MSIGX's 0.82% expense ratio.
Return for Risk
SPIAX vs. MSIGX — Risk / Return Rank
SPIAX
MSIGX
SPIAX vs. MSIGX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Invesco S&P 500 Index A (SPIAX) and Invesco Main Street Fund (MSIGX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| SPIAX | MSIGX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.81 | 0.77 | +0.03 |
Sortino ratioReturn per unit of downside risk | 1.25 | 1.26 | -0.01 |
Omega ratioGain probability vs. loss probability | 1.19 | 1.18 | +0.01 |
Calmar ratioReturn relative to maximum drawdown | 0.95 | 0.31 | +0.64 |
Martin ratioReturn relative to average drawdown | 4.59 | 1.22 | +3.37 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| SPIAX | MSIGX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.81 | 0.77 | +0.03 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.65 | 0.54 | +0.11 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.73 | 0.60 | +0.13 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.42 | 0.63 | -0.20 |
Correlation
The correlation between SPIAX and MSIGX is 0.97, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
SPIAX vs. MSIGX - Dividend Comparison
SPIAX's dividend yield for the trailing twelve months is around 1.09%, less than MSIGX's 8.06% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SPIAX Invesco S&P 500 Index A | 1.09% | 1.01% | 1.08% | 1.04% | 1.07% | 1.90% | 1.26% | 1.93% | 2.59% | 1.28% | 1.28% | 1.53% |
MSIGX Invesco Main Street Fund | 8.06% | 7.50% | 6.06% | 7.40% | 4.68% | 19.19% | 3.17% | 0.89% | 19.62% | 7.50% | 2.96% | 13.79% |
Drawdowns
SPIAX vs. MSIGX - Drawdown Comparison
The maximum SPIAX drawdown since its inception was -55.47%, roughly equal to the maximum MSIGX drawdown of -57.22%. Use the drawdown chart below to compare losses from any high point for SPIAX and MSIGX.
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Drawdown Indicators
| SPIAX | MSIGX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.47% | -57.22% | +1.75% |
Max Drawdown (1Y)Largest decline over 1 year | -12.15% | -11.78% | -0.37% |
Max Drawdown (5Y)Largest decline over 5 years | -24.81% | -26.73% | +1.92% |
Max Drawdown (10Y)Largest decline over 10 years | -33.84% | -35.41% | +1.57% |
Current DrawdownCurrent decline from peak | -8.97% | -8.38% | -0.59% |
Average DrawdownAverage peak-to-trough decline | -10.84% | -9.03% | -1.81% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.58% | 4.27% | -1.69% |
Volatility
SPIAX vs. MSIGX - Volatility Comparison
The current volatility for Invesco S&P 500 Index A (SPIAX) is 4.25%, while Invesco Main Street Fund (MSIGX) has a volatility of 5.28%. This indicates that SPIAX experiences smaller price fluctuations and is considered to be less risky than MSIGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SPIAX | MSIGX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.25% | 5.28% | -1.03% |
Volatility (6M)Calculated over the trailing 6-month period | 9.11% | 9.48% | -0.37% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.17% | 18.55% | -0.38% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.87% | 16.92% | -0.05% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.05% | 17.87% | +0.18% |