FSMUX vs. FSAJX

Last updated Jun 24, 2026

FSMUX (Strategic Advisers Municipal Bond Fund) and FSAJX (Fidelity SAI Tax-Free Bond Fund) are both Municipal Bonds funds from Fidelity. Over the past 5 years, FSMUX returned 0.57%/yr vs 1.25%/yr for FSAJX. Their correlation of 0.88 suggests significant overlap in exposure. FSMUX charges 0.06%/yr vs 0.25%/yr for FSAJX.

Performance

FSMUX vs. FSAJX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Strategic Advisers Municipal Bond Fund (FSMUX) and Fidelity SAI Tax-Free Bond Fund (FSAJX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FSMUX achieves a 1.59% return, which is significantly lower than FSAJX's 1.68% return.

FSMUX

• 1D: 0.00%
• 1M: 1.82%
• YTD: 1.59%
• 6M: 2.06%
• 1Y: 6.56%
• 3Y*: 3.70%
• 5Y*: 0.57%
• 10Y*: —

FSAJX

• 1D: -0.10%
• 1M: 1.59%
• YTD: 1.68%
• 6M: 2.07%
• 1Y: 6.98%
• 3Y*: 4.43%
• 5Y*: 1.25%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

FSMUX vs. FSAJX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
FSMUX Strategic Advisers Municipal Bond Fund	1.59%	3.14%	2.99%	6.78%	-11.25%	0.39%
FSAJX Fidelity SAI Tax-Free Bond Fund	1.68%	5.25%	1.80%	7.67%	-9.82%	0.13%

Correlation

The correlation between FSMUX and FSAJX is 0.75, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.75
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.88
Correlation (All Time) Calculated using the full available price history since Jun 17, 2021	0.88

The correlation between FSMUX and FSAJX shifts across timeframes, from 0.75 (1 year) to 0.88 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

FSMUX vs. FSAJX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

FSMUX

FSMUX Risk / Return Rank: 78
FSMUX Sharpe Ratio Rank: 85
FSMUX Sortino Ratio Rank: 93
FSMUX Omega Ratio Rank: 93
FSMUX Calmar Ratio Rank: 64
FSMUX Martin Ratio Rank: 57

FSAJX

FSAJX Risk / Return Rank: 69
FSAJX Sharpe Ratio Rank: 85
FSAJX Sortino Ratio Rank: 89
FSAJX Omega Ratio Rank: 90
FSAJX Calmar Ratio Rank: 42
FSAJX Martin Ratio Rank: 41

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.

FSMUX vs. FSAJX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Strategic Advisers Municipal Bond Fund (FSMUX) and Fidelity SAI Tax-Free Bond Fund (FSAJX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	FSMUX	FSAJX	Difference
Sharpe ratio: Return per unit of total volatility	2.56	2.56	-0.01
Sortino ratio: Return per unit of downside risk	4.41	4.01	+0.40
Omega ratio: Gain probability vs. loss probability	1.68	1.62	+0.06
Calmar ratio: Return relative to maximum drawdown	2.95	2.37	+0.58
Martin ratio: Return relative to average drawdown	10.82	8.26	+2.56

FSMUX vs. FSAJX - Sharpe Ratio Comparison

The current FSMUX Sharpe Ratio is 2.56, which is comparable to the FSAJX Sharpe Ratio of 2.56. The chart below compares the historical Sharpe Ratios of FSMUX and FSAJX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

FSMUX vs. FSAJX - Drawdown Comparison

The maximum FSMUX drawdown since its inception was -16.27%, which is greater than FSAJX's maximum drawdown of -15.16%. Use the drawdown chart below to compare losses from any high point for FSMUX and FSAJX.

Drawdown Indicators

	FSMUX	FSAJX	Difference
Max Drawdown Largest peak-to-trough decline	-16.27%	-15.16%	-1.11%
Max Drawdown (1Y) Largest decline over 1 year	-2.68%	-3.02%	+0.34%
Max Drawdown (3Y) Largest decline over 3 years	-5.95%	-5.86%	-0.09%
Max Drawdown (5Y) Largest decline over 5 years	-16.27%	-15.16%	-1.11%
Current Drawdown Current decline from peak	0.00%	-0.52%	+0.52%
Average Drawdown Average peak-to-trough decline	-5.40%	-3.30%	-2.10%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.71%	0.86%	-0.15%

Volatility

FSMUX vs. FSAJX - Volatility Comparison

Strategic Advisers Municipal Bond Fund (FSMUX) and Fidelity SAI Tax-Free Bond Fund (FSAJX) have volatilities of 0.78% and 0.79%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSMUX	FSAJX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.78%	0.79%	-0.01%
Volatility (6M) Calculated over the trailing 6-month period	2.06%	2.14%	-0.08%
Volatility (1Y) Calculated over the trailing 1-year period	3.09%	2.80%	+0.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.62%	4.12%	+0.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.62%	4.61%	+0.01%

FSMUX vs. FSAJX - Expense Ratio Comparison

FSMUX has a 0.06% expense ratio, which is lower than FSAJX's 0.25% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

FSMUX vs. FSAJX - Dividend Comparison

FSMUX's dividend yield for the trailing twelve months is around 2.98%, less than FSAJX's 3.30% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
FSAJX Fidelity SAI Tax-Free Bond Fund	3.30%	4.25%	3.08%	2.75%	1.72%	1.50%	2.03%	2.79%	0.44%
FSMUX Strategic Advisers Municipal Bond Fund	2.98%	3.26%	3.74%	3.18%	2.14%	0.99%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FSMUX and FSAJX in my portfolio?

FSMUX and FSAJX have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FSMUX or FSAJX?

FSAJX has higher volatility (0.79%) compared to FSMUX (0.78%). In terms of maximum drawdown, FSMUX dropped -16.27% vs FSAJX's -15.16%.

Which has better risk-adjusted returns?

FSAJX currently has the higher Sharpe Ratio (2.56 vs 2.56), 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.