OPTAX vs. OPGSX
Compare and contrast key facts about Invesco AMT-Free Municipal Fund (OPTAX) and Invesco Gold & Special Minerals Fund (OPGSX).
OPTAX is managed by Invesco. It was launched on Oct 26, 1976. OPGSX is managed by Invesco. It was launched on Jul 18, 1983.
Performance
OPTAX vs. OPGSX - Performance Comparison
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OPTAX vs. OPGSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
OPTAX Invesco AMT-Free Municipal Fund | -1.34% | 2.70% | 2.13% | 6.64% | -12.15% | 4.16% | 7.57% | 12.33% | 7.43% | 5.98% |
OPGSX Invesco Gold & Special Minerals Fund | 0.44% | 131.03% | 13.05% | 6.35% | -16.86% | -2.75% | 36.15% | 46.37% | -13.15% | 17.17% |
Returns By Period
In the year-to-date period, OPTAX achieves a -1.34% return, which is significantly lower than OPGSX's 0.44% return. Over the past 10 years, OPTAX has underperformed OPGSX with an annualized return of 3.39%, while OPGSX has yielded a comparatively higher 17.37% annualized return.
OPTAX
- 1D
- 0.30%
- 1M
- -2.64%
- YTD
- -1.34%
- 6M
- -0.70%
- 1Y
- 1.49%
- 3Y*
- 2.18%
- 5Y*
- 0.12%
- 10Y*
- 3.39%
OPGSX
- 1D
- -0.37%
- 1M
- -23.68%
- YTD
- 0.44%
- 6M
- 13.72%
- 1Y
- 82.38%
- 3Y*
- 36.20%
- 5Y*
- 20.12%
- 10Y*
- 17.37%
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OPTAX vs. OPGSX - Expense Ratio Comparison
OPTAX has a 0.75% expense ratio, which is lower than OPGSX's 1.05% expense ratio.
Return for Risk
OPTAX vs. OPGSX — Risk / Return Rank
OPTAX
OPGSX
OPTAX vs. OPGSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Invesco AMT-Free Municipal Fund (OPTAX) and Invesco Gold & Special Minerals Fund (OPGSX). 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.
| OPTAX | OPGSX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.41 | 2.20 | -1.79 |
Sortino ratioReturn per unit of downside risk | 0.59 | 2.54 | -1.95 |
Omega ratioGain probability vs. loss probability | 1.11 | 1.36 | -0.25 |
Calmar ratioReturn relative to maximum drawdown | 0.14 | 3.22 | -3.08 |
Martin ratioReturn relative to average drawdown | 0.37 | 12.84 | -12.47 |
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
| OPTAX | OPGSX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.41 | 2.20 | -1.79 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.02 | 0.63 | -0.60 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.71 | 0.53 | +0.17 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.76 | 0.25 | +0.51 |
Correlation
The correlation between OPTAX and OPGSX is 0.03, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
OPTAX vs. OPGSX - Dividend Comparison
OPTAX's dividend yield for the trailing twelve months is around 2.65%, more than OPGSX's 0.43% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
OPTAX Invesco AMT-Free Municipal Fund | 2.65% | 4.23% | 4.16% | 3.02% | 2.99% | 3.43% | 3.80% | 3.75% | 3.82% | 4.71% | 5.77% | 6.05% |
OPGSX Invesco Gold & Special Minerals Fund | 0.43% | 0.43% | 0.86% | 0.81% | 0.45% | 3.56% | 1.55% | 0.29% | 0.00% | 2.78% | 7.21% | 0.00% |
Drawdowns
OPTAX vs. OPGSX - Drawdown Comparison
The maximum OPTAX drawdown since its inception was -48.56%, smaller than the maximum OPGSX drawdown of -80.04%. Use the drawdown chart below to compare losses from any high point for OPTAX and OPGSX.
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Drawdown Indicators
| OPTAX | OPGSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -48.56% | -80.04% | +31.48% |
Max Drawdown (1Y)Largest decline over 1 year | -5.71% | -29.01% | +23.30% |
Max Drawdown (5Y)Largest decline over 5 years | -17.30% | -47.09% | +29.79% |
Max Drawdown (10Y)Largest decline over 10 years | -17.30% | -47.09% | +29.79% |
Current DrawdownCurrent decline from peak | -3.16% | -24.65% | +21.49% |
Average DrawdownAverage peak-to-trough decline | -6.39% | -29.33% | +22.94% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.31% | 7.27% | -4.96% |
Volatility
OPTAX vs. OPGSX - Volatility Comparison
The current volatility for Invesco AMT-Free Municipal Fund (OPTAX) is 1.30%, while Invesco Gold & Special Minerals Fund (OPGSX) has a volatility of 15.32%. This indicates that OPTAX experiences smaller price fluctuations and is considered to be less risky than OPGSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OPTAX | OPGSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.30% | 15.32% | -14.02% |
Volatility (6M)Calculated over the trailing 6-month period | 2.45% | 35.01% | -32.56% |
Volatility (1Y)Calculated over the trailing 1-year period | 6.26% | 43.01% | -36.75% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.98% | 32.97% | -27.99% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.84% | 32.93% | -28.09% |