SPIAX vs. ACSTX
Compare and contrast key facts about Invesco S&P 500 Index A (SPIAX) and Invesco Comstock Fund (ACSTX).
SPIAX is a passively managed fund by Invesco that tracks the performance of the S&P 500. It was launched on Sep 26, 1997. ACSTX is managed by Invesco. It was launched on Oct 7, 1968.
Performance
SPIAX vs. ACSTX - Performance Comparison
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SPIAX vs. ACSTX - 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% |
ACSTX Invesco Comstock Fund | -2.22% | 17.22% | 15.00% | 12.37% | 0.74% | 33.33% | -0.78% | 24.35% | -12.34% | 17.75% |
Returns By Period
In the year-to-date period, SPIAX achieves a -7.17% return, which is significantly lower than ACSTX's -2.22% return. Over the past 10 years, SPIAX has outperformed ACSTX with an annualized return of 13.13%, while ACSTX has yielded a comparatively lower 11.67% 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%
ACSTX
- 1D
- -0.37%
- 1M
- -7.08%
- YTD
- -2.22%
- 6M
- 2.18%
- 1Y
- 11.55%
- 3Y*
- 14.03%
- 5Y*
- 11.23%
- 10Y*
- 11.67%
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SPIAX vs. ACSTX - Expense Ratio Comparison
SPIAX has a 0.54% expense ratio, which is lower than ACSTX's 0.80% expense ratio.
Return for Risk
SPIAX vs. ACSTX — Risk / Return Rank
SPIAX
ACSTX
SPIAX vs. ACSTX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Invesco S&P 500 Index A (SPIAX) and Invesco Comstock Fund (ACSTX). 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 | ACSTX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.81 | 0.80 | +0.01 |
Sortino ratioReturn per unit of downside risk | 1.25 | 1.17 | +0.08 |
Omega ratioGain probability vs. loss probability | 1.19 | 1.18 | +0.01 |
Calmar ratioReturn relative to maximum drawdown | 0.95 | 0.85 | +0.10 |
Martin ratioReturn relative to average drawdown | 4.59 | 3.47 | +1.12 |
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 | ACSTX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.81 | 0.80 | +0.01 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.65 | 0.73 | -0.09 |
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 | 0.50 | -0.07 |
Correlation
The correlation between SPIAX and ACSTX is 0.87, 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. ACSTX - Dividend Comparison
SPIAX's dividend yield for the trailing twelve months is around 1.09%, less than ACSTX's 9.04% 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% |
ACSTX Invesco Comstock Fund | 9.04% | 8.79% | 10.17% | 8.44% | 13.00% | 8.66% | 2.05% | 6.66% | 10.03% | 3.60% | 6.98% | 1.10% |
Drawdowns
SPIAX vs. ACSTX - Drawdown Comparison
The maximum SPIAX drawdown since its inception was -55.47%, smaller than the maximum ACSTX drawdown of -58.61%. Use the drawdown chart below to compare losses from any high point for SPIAX and ACSTX.
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Drawdown Indicators
| SPIAX | ACSTX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.47% | -58.61% | +3.14% |
Max Drawdown (1Y)Largest decline over 1 year | -12.15% | -12.22% | +0.07% |
Max Drawdown (5Y)Largest decline over 5 years | -24.81% | -17.25% | -7.56% |
Max Drawdown (10Y)Largest decline over 10 years | -33.84% | -44.80% | +10.96% |
Current DrawdownCurrent decline from peak | -8.97% | -8.02% | -0.95% |
Average DrawdownAverage peak-to-trough decline | -10.84% | -9.37% | -1.47% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.58% | 3.03% | -0.45% |
Volatility
SPIAX vs. ACSTX - Volatility Comparison
Invesco S&P 500 Index A (SPIAX) has a higher volatility of 4.25% compared to Invesco Comstock Fund (ACSTX) at 3.34%. This indicates that SPIAX's price experiences larger fluctuations and is considered to be riskier than ACSTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SPIAX | ACSTX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.25% | 3.34% | +0.91% |
Volatility (6M)Calculated over the trailing 6-month period | 9.11% | 8.16% | +0.95% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.17% | 15.99% | +2.18% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.87% | 15.47% | +1.40% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.05% | 19.48% | -1.43% |