FSYD vs. MUB
FSYD (Fidelity Sustainable High Yield ETF) and MUB (iShares National AMT-Free Muni Bond ETF) are both exchange-traded funds - FSYD is a High Yield Bonds fund actively managed by Fidelity, while MUB is a Municipal Bonds fund tracking the S&P National AMT-Free Municipal Bond Index. FSYD is actively managed, while MUB is passively managed. Over the past 3 years, FSYD returned 9.54%/yr vs 3.43%/yr for MUB. At a 0.48 correlation, their price movements are largely independent. FSYD charges 0.55%/yr vs 0.07%/yr for MUB.
Performance
FSYD vs. MUB - Performance Comparison
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Returns By Period
In the year-to-date period, FSYD achieves a 3.35% return, which is significantly higher than MUB's 1.24% return.
FSYD
- 1D
- -0.27%
- 1M
- 0.75%
- YTD
- 3.35%
- 6M
- 3.97%
- 1Y
- 10.19%
- 3Y*
- 9.54%
- 5Y*
- —
- 10Y*
- —
MUB
- 1D
- -0.08%
- 1M
- 0.56%
- YTD
- 1.24%
- 6M
- 1.74%
- 1Y
- 6.95%
- 3Y*
- 3.43%
- 5Y*
- 0.86%
- 10Y*
- 2.00%
FSYD vs. MUB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
FSYD Fidelity Sustainable High Yield ETF | 3.35% | 9.09% | 8.74% | 12.22% | -6.59% |
MUB iShares National AMT-Free Muni Bond ETF | 1.24% | 3.78% | 1.26% | 5.56% | -4.52% |
Correlation
The correlation between FSYD and MUB is 0.47, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.47 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.53 |
Correlation (All Time) Calculated using the full available price history since Feb 18, 2022 | 0.48 |
The correlation between FSYD and MUB has been stable across timeframes, ranging from 0.47 to 0.53 - a consistent structural relationship.
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Return for Risk
FSYD vs. MUB — Risk / Return Rank
FSYD
MUB
FSYD vs. MUB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Sustainable High Yield ETF (FSYD) and iShares National AMT-Free Muni Bond ETF (MUB). 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.
| FSYD | MUB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.09 | ||
| Sortino ratioReturn per unit of downside risk | +0.30 | ||
| Omega ratioGain probability vs. loss probability | 1.50 | 1.50 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 3.83 | 2.50 | +1.32 |
| Martin ratioReturn relative to average drawdown | 15.34 | 8.85 | +6.49 |
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
| FSYD | MUB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.49 | 2.39 | +0.09 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.21 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.41 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.77 | 0.58 | +0.19 |
Drawdowns
FSYD vs. MUB - Drawdown Comparison
The maximum FSYD drawdown since its inception was -12.11%, smaller than the maximum MUB drawdown of -13.68%. Use the drawdown chart below to compare losses from any high point for FSYD and MUB.
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Drawdown Indicators
| FSYD | MUB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -12.11% | -13.68% | +1.57% |
Max Drawdown (1Y)Largest decline over 1 year | -2.67% | -2.79% | +0.12% |
Max Drawdown (3Y)Largest decline over 3 years | -5.49% | -5.34% | -0.15% |
Max Drawdown (5Y)Largest decline over 5 years | — | -11.88% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -13.68% | — |
Current DrawdownCurrent decline from peak | -0.27% | -0.70% | +0.43% |
Average DrawdownAverage peak-to-trough decline | -2.40% | -2.23% | -0.17% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.67% | 0.79% | -0.12% |
Volatility
FSYD vs. MUB - Volatility Comparison
Fidelity Sustainable High Yield ETF (FSYD) has a higher volatility of 1.12% compared to iShares National AMT-Free Muni Bond ETF (MUB) at 0.97%. This indicates that FSYD's price experiences larger fluctuations and is considered to be riskier than MUB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FSYD | MUB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.12% | 0.97% | +0.15% |
Volatility (6M)Calculated over the trailing 6-month period | 3.13% | 2.22% | +0.91% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.12% | 2.92% | +1.20% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 7.85% | 4.06% | +3.79% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 7.85% | 4.92% | +2.93% |
FSYD vs. MUB - Expense Ratio Comparison
FSYD has a 0.55% expense ratio, which is higher than MUB's 0.07% expense ratio.
Dividends
FSYD vs. MUB - Dividend Comparison
FSYD's dividend yield for the trailing twelve months is around 6.32%, more than MUB's 3.17% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FSYD Fidelity Sustainable High Yield ETF | 6.32% | 6.49% | 6.47% | 6.70% | 5.29% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
MUB iShares National AMT-Free Muni Bond ETF | 3.17% | 3.14% | 3.01% | 2.65% | 2.11% | 1.81% | 2.11% | 2.42% | 2.46% | 2.26% | 2.21% | 2.51% |
Frequently Asked Questions
FSYD and MUB have a correlation of 0.47, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FSYD has higher volatility (1.12%) compared to MUB (0.97%). In terms of maximum drawdown, FSYD dropped -12.11% vs MUB's -13.68%.
On 3-year performance, FSYD leads with 9.54% vs 3.43% for MUB. On fees, MUB is cheaper at 0.07% per year. On volatility, MUB has been the lower-risk option at 0.97%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, FSYD has performed better with a 9.54% return vs 3.43%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
MUB is cheaper with a 0.07% expense ratio, compared with 0.55% for FSYD.
FSYD has the higher dividend yield at 6.32%, compared with 3.17% for MUB.
FSYD is categorized as High Yield Bonds, while MUB is Municipal Bonds. They also come from different issuers: Fidelity and iShares. Their fees differ too: 0.55% for FSYD and 0.07% for MUB.
FSYD currently has the higher Sharpe Ratio (2.49 vs 2.39), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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