FMUN vs. IBMP

Last updated Jun 4, 2026

FMUN (Fidelity Systematic Municipal Bond Index ETF) and IBMP (iShares iBonds Dec 2027 Term Muni Bond ETF) are both Municipal Bonds funds. FMUN is actively managed, while IBMP is passively managed. Over the past year, FMUN returned 7.61% vs 3.04% for IBMP. At a 0.35 correlation, their price movements are largely independent. FMUN charges 0.05%/yr vs 0.18%/yr for IBMP.

Performance

FMUN vs. IBMP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Systematic Municipal Bond Index ETF (FMUN) and iShares iBonds Dec 2027 Term Muni Bond ETF (IBMP). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FMUN achieves a 1.69% return, which is significantly higher than IBMP's 0.89% return.

FMUN

• 1D: 0.03%
• 1M: 0.93%
• YTD: 1.69%
• 6M: 2.24%
• 1Y: 7.61%
• 3Y*: —
• 5Y*: —
• 10Y*: —

IBMP

• 1D: 0.00%
• 1M: 0.21%
• YTD: 0.89%
• 6M: 1.26%
• 1Y: 3.04%
• 3Y*: 2.97%
• 5Y*: 0.59%
• 10Y*: —

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

FMUN vs. IBMP - Yearly Performance Comparison

	2026 (YTD)	2025
FMUN Fidelity Systematic Municipal Bond Index ETF	1.69%	4.25%
IBMP iShares iBonds Dec 2027 Term Muni Bond ETF	0.89%	3.10%

Correlation

The correlation between FMUN and IBMP is 0.26, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.26
Correlation (All Time) Calculated using the full available price history since Apr 8, 2025	0.35

Return for Risk

FMUN vs. IBMP — Risk / Return Rank

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

FMUN

FMUN Risk / Return Rank: 67
FMUN Sharpe Ratio Rank: 75
FMUN Sortino Ratio Rank: 78
FMUN Omega Ratio Rank: 86
FMUN Calmar Ratio Rank: 48
FMUN Martin Ratio Rank: 48

IBMP

IBMP Risk / Return Rank: 86
IBMP Sharpe Ratio Rank: 86
IBMP Sortino Ratio Rank: 91
IBMP Omega Ratio Rank: 91
IBMP Calmar Ratio Rank: 88
IBMP Martin Ratio Rank: 75

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.

FMUN vs. IBMP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Systematic Municipal Bond Index ETF (FMUN) and iShares iBonds Dec 2027 Term Muni Bond ETF (IBMP). 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.

	FMUN	IBMP	Difference
Sharpe ratio: Return per unit of total volatility	2.45	2.83	-0.38
Sortino ratio: Return per unit of downside risk	3.54	4.38	-0.84
Omega ratio: Gain probability vs. loss probability	1.53	1.60	-0.07
Calmar ratio: Return relative to maximum drawdown	2.38	5.14	-2.75
Martin ratio: Return relative to average drawdown	7.88	14.24	-6.36
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FMUN vs. IBMP - Sharpe Ratio Comparison

The current FMUN Sharpe Ratio is 2.45, which is comparable to the IBMP Sharpe Ratio of 2.83. The chart below compares the historical Sharpe Ratios of FMUN and IBMP, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FMUN	IBMP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.45	2.83	-0.38
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.23	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.28	0.38	+0.90

Drawdowns

FMUN vs. IBMP - Drawdown Comparison

The maximum FMUN drawdown since its inception was -3.21%, smaller than the maximum IBMP drawdown of -15.24%. Use the drawdown chart below to compare losses from any high point for FMUN and IBMP.

Drawdown Indicators

	FMUN	IBMP	Difference
Max Drawdown Largest peak-to-trough decline	-3.21%	-15.24%	+12.03%
Max Drawdown (1Y) Largest decline over 1 year	-3.21%	-0.59%	-2.62%
Max Drawdown (3Y) Largest decline over 3 years	—	-2.63%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-10.00%	—
Current Drawdown Current decline from peak	-0.66%	-0.01%	-0.65%
Average Drawdown Average peak-to-trough decline	-0.82%	-2.72%	+1.90%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.97%	0.21%	+0.76%

Volatility

FMUN vs. IBMP - Volatility Comparison

Fidelity Systematic Municipal Bond Index ETF (FMUN) has a higher volatility of 1.27% compared to iShares iBonds Dec 2027 Term Muni Bond ETF (IBMP) at 0.27%. This indicates that FMUN's price experiences larger fluctuations and is considered to be riskier than IBMP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FMUN	IBMP	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.27%	0.27%	+1.00%
Volatility (6M) Calculated over the trailing 6-month period	2.27%	0.79%	+1.48%
Volatility (1Y) Calculated over the trailing 1-year period	3.12%	1.08%	+2.04%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.06%	2.56%	+1.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.06%	5.01%	-0.95%

FMUN vs. IBMP - Expense Ratio Comparison

FMUN has a 0.05% expense ratio, which is lower than IBMP's 0.18% 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

FMUN vs. IBMP - Dividend Comparison

FMUN's dividend yield for the trailing twelve months is around 3.29%, more than IBMP's 2.50% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
FMUN Fidelity Systematic Municipal Bond Index ETF	3.29%	2.41%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
IBMP iShares iBonds Dec 2027 Term Muni Bond ETF	2.50%	2.47%	2.35%	2.05%	1.26%	0.86%	1.16%	1.06%

Frequently Asked Questions

Can I hold both FMUN and IBMP in my portfolio?

FMUN and IBMP have a correlation of 0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FMUN or IBMP?

FMUN has higher volatility (1.27%) compared to IBMP (0.27%). In terms of maximum drawdown, FMUN dropped -3.21% vs IBMP's -15.24%.

Which ETF is better, FMUN or IBMP?

On 1-year performance, FMUN leads with 7.61% vs 3.04% for IBMP. On fees, FMUN is cheaper at 0.05% per year. On volatility, IBMP has been the lower-risk option at 0.27%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, FMUN or IBMP?

Over the 1-year period, FMUN has performed better with a 7.61% return vs 3.04%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, FMUN or IBMP?

FMUN is cheaper with a 0.05% expense ratio, compared with 0.18% for IBMP.

Which ETF pays a higher dividend yield, FMUN or IBMP?

FMUN has the higher dividend yield at 3.29%, compared with 2.50% for IBMP.

What is the main difference between FMUN and IBMP?

They also come from different issuers: Fidelity and iShares. Their fees differ too: 0.05% for FMUN and 0.18% for IBMP.

Which has better risk-adjusted returns?

IBMP currently has the higher Sharpe Ratio (2.83 vs 2.45), 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.