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Invesco AMT-Free Municipal Fund (OPTAX)
Performance
Return for Risk
Dividends
Drawdowns
Volatility

Fund Info

ISIN
US0014192175
CUSIP
001419217
Issuer
Invesco
Inception Date
Oct 26, 1976
Min. Investment
$1,000
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

Performance Chart

The chart shows the growth of an initial investment of $10,000 in Invesco AMT-Free Municipal Fund, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.


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S&P 500 Index

Returns By Period

Invesco AMT-Free Municipal Fund (OPTAX) has returned -1.34% so far this year and 1.49% over the past 12 months. Over the last ten years, OPTAX has returned 3.39% per year, falling short of the S&P 500 Index benchmark, which averaged 12.16% annually.


Invesco AMT-Free Municipal Fund

1D
0.30%
1M
-2.64%
YTD
-1.34%
6M
-0.70%
1Y
1.49%
3Y*
2.18%
5Y*
0.12%
10Y*
3.39%

Benchmark (S&P 500 Index)

1D
2.91%
1M
-5.09%
YTD
-4.63%
6M
-2.39%
1Y
16.33%
3Y*
16.69%
5Y*
10.18%
10Y*
12.16%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Monthly Returns

Based on dividend-adjusted daily data since Jan 2, 1980, OPTAX's average daily return is +0.02%, while the average monthly return is +0.34%. At this rate, your investment would double in approximately 17.0 years.

Historically, 65% of months were positive and 35% were negative. The best month was Sep 2009 with a return of +12.1%, while the worst month was Oct 2008 at -16.4%. The longest winning streak lasted 20 consecutive months, and the longest losing streak was 7 months.

On a daily basis, OPTAX closed higher 38% of trading days. The best single day was Mar 25, 2020 with a return of +3.7%, while the worst single day was Oct 28, 2008 at -5.0%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026-0.00%1.34%-2.64%-1.34%
20250.17%1.37%-1.68%-0.68%-0.72%0.49%-1.03%0.80%3.41%1.19%-0.44%-0.10%2.70%
20240.03%0.17%-0.57%-1.13%-0.12%1.80%0.76%0.61%1.18%-1.40%2.09%-1.23%2.13%
20233.86%-2.56%2.22%0.16%-0.71%1.04%0.16%-1.74%-3.68%-2.15%7.88%2.52%6.64%
2022-2.76%-0.65%-3.42%-3.41%1.42%-3.08%2.89%-2.81%-4.35%-1.52%5.88%-0.57%-12.15%
20211.21%-1.60%0.81%1.44%0.80%0.54%0.92%-0.46%-0.97%-0.11%1.29%0.27%4.16%

Benchmark Metrics

Invesco AMT-Free Municipal Fund has an annualized alpha of 3.82%, beta of 0.01, and R² of 0.00 versus S&P 500 Index. Calculated based on daily prices since January 03, 1980.

  • This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (20.57%) than losses (16.96%) — typical of diversified or defensive assets.
  • Beta of 0.01 may look defensive, but with R² of 0.00 this fund is largely uncorrelated with S&P 500 Index — low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
  • R² of 0.00 means this fund moves largely independently of S&P 500 Index — capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

Alpha
3.82%
Beta
0.01
0.00
Upside Capture
20.57%
Downside Capture
16.96%

Expense Ratio

OPTAX has an expense ratio of 0.75%, placing it in the medium range.


Return for Risk

Risk / Return Rank

OPTAX ranks 12 for risk / return — in the bottom 12% of mutual funds on our site. This means you're taking on significantly more risk than the returns justify. Consider whether the potential upside is worth the volatility, or explore alternatives with better risk / return profiles.


OPTAX Risk / Return Rank: 1212
Overall Rank
OPTAX Sharpe Ratio Rank: 1414
Sharpe Ratio Rank
OPTAX Sortino Ratio Rank: 1212
Sortino Ratio Rank
OPTAX Omega Ratio Rank: 1717
Omega Ratio Rank
OPTAX Calmar Ratio Rank: 88
Calmar Ratio Rank
OPTAX Martin Ratio Rank: 88
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for Invesco AMT-Free Municipal Fund (OPTAX) and compare them to a chosen benchmark (S&P 500 Index).


OPTAXBenchmarkDifference

Sharpe ratio

Return per unit of total volatility

0.41

0.90

-0.49

Sortino ratio

Return per unit of downside risk

0.59

1.39

-0.80

Omega ratio

Gain probability vs. loss probability

1.11

1.21

-0.10

Calmar ratio

Return relative to maximum drawdown

0.14

1.40

-1.25

Martin ratio

Return relative to average drawdown

0.37

6.61

-6.24

Explore OPTAX risk-adjusted metrics in detail

Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.

Dividends

Dividend History

Invesco AMT-Free Municipal Fund provided a 2.65% dividend yield over the last twelve months, with an annual payout of $0.18 per share. The fund has been increasing its distributions for 3 consecutive years.


3.00%4.00%5.00%6.00%$0.00$0.10$0.20$0.30$0.4020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.18$0.29$0.28$0.21$0.20$0.27$0.30$0.29$0.27$0.32$0.39$0.42

Dividend yield

2.65%4.23%4.16%3.02%2.99%3.43%3.80%3.75%3.82%4.71%5.77%6.05%

Monthly Dividends

The table displays the monthly dividend distributions for Invesco AMT-Free Municipal Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.00$0.00$0.00$0.00
2025$0.02$0.04$0.04$0.04$0.02$0.02$0.02$0.02$0.02$0.00$0.00$0.02$0.29
2024$0.02$0.02$0.00$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.04$0.04$0.28
2023$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.00$0.02$0.00$0.02$0.02$0.21
2022$0.02$0.02$0.02$0.02$0.02$0.00$0.00$0.02$0.02$0.02$0.02$0.02$0.20
2021$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.27

Drawdowns

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.


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Worst Drawdowns

The table below displays the maximum drawdowns of the Invesco AMT-Free Municipal Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the Invesco AMT-Free Municipal Fund was 48.56%, occurring on Dec 17, 2008. Recovery took 931 trading sessions.

The current Invesco AMT-Free Municipal Fund drawdown is 3.16%.


Depth

Start

To Bottom

Bottom

To Recover

End

Total

-48.56%May 14, 2007405Dec 17, 2008931Aug 28, 20121336
-35.79%Jan 3, 1980516Jan 18, 1982972Nov 18, 19851488
-17.3%Aug 3, 2021311Oct 25, 2022
-15.92%Mar 4, 1987158Oct 15, 1987794Dec 5, 1990952
-14.94%Dec 10, 1993240Nov 21, 1994130May 30, 1995370

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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