FUMBX vs. FJRLX

Last updated Aug 5, 2026

FUMBX (Fidelity Short-Term Treasury Bond Index Fund) and FJRLX (Fidelity Limited Term Bond Fund) are both mutual funds - FUMBX is a Short-Term Bond fund tracking the Bloomberg U.S. 1-5 Year Treasury Bond Index, while FJRLX is a Total Bond Market fund managed by Fidelity. Over the past 5 years, FUMBX returned 1.29%/yr vs 2.02%/yr for FJRLX. Their correlation of 0.84 means they have usually moved in the same direction. FUMBX charges 0.03%/yr vs 0.45%/yr for FJRLX.

Performance

FUMBX vs. FJRLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Short-Term Treasury Bond Index Fund (FUMBX) and Fidelity Limited Term Bond Fund (FJRLX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FUMBX achieves a 0.33% return, which is significantly lower than FJRLX's 0.53% return.

FUMBX

• 1D: 0.00%
• 1M: -0.12%
• 6M: 0.26%
• YTD: 0.33%
• 1Y: 2.16%
• 3Y*: 4.10%
• 5Y*: 1.29%
• 10Y*: —
• ALL TIME*: 1.78%

FJRLX

• 1D: 0.17%
• 1M: -0.35%
• 6M: 0.28%
• YTD: 0.53%
• 1Y: 2.75%
• 3Y*: 5.12%
• 5Y*: 2.02%
• 10Y*: 2.29%
• ALL TIME*: 2.27%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
FJRLX Fidelity Limited Term Bond Fund	$0.00	$0.00	$0.00
FUMBX Fidelity Short-Term Treasury Bond Index Fund	$0.00	$0.00	$0.00

FUMBX vs. FJRLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FUMBX Fidelity Short-Term Treasury Bond Index Fund	0.33%	5.83%	3.25%	4.47%	-5.84%	-1.38%	4.22%	4.19%	1.47%	-0.33%
FJRLX Fidelity Limited Term Bond Fund	0.53%	6.70%	4.62%	6.26%	-6.22%	-1.46%	5.16%	6.04%	0.71%	-0.04%

Correlation

The correlation between FUMBX and FJRLX is 0.83, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.83
Correlation (3Y) Balances recent behavior with more history.	0.87
Correlation (5Y) Shows whether the relationship held over a longer period.	0.90
Correlation (All Time) Calculated using the full available price history since Oct 19, 2017	0.84

The correlation between FUMBX and FJRLX has been stable across timeframes, ranging from 0.83 to 0.90 - a consistent structural relationship.

Return for Risk

FUMBX vs. FJRLX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

FUMBX

FUMBX Risk / Return Rank: 30
FUMBX Sharpe Ratio Rank: 31
FUMBX Sortino Ratio Rank: 31
FUMBX Omega Ratio Rank: 33
FUMBX Calmar Ratio Rank: 29
FUMBX Martin Ratio Rank: 25

FJRLX

FJRLX Risk / Return Rank: 45
FJRLX Sharpe Ratio Rank: 42
FJRLX Sortino Ratio Rank: 52
FJRLX Omega Ratio Rank: 50
FJRLX Calmar Ratio Rank: 39
FJRLX Martin Ratio Rank: 40

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

FUMBX vs. FJRLX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Short-Term Treasury Bond Index Fund (FUMBX) and Fidelity Limited Term Bond Fund (FJRLX). 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.

	FUMBX	FJRLX	Difference
Sharpe ratio: Return per unit of total volatility	1.11	1.37	-0.26
Sortino ratio: Return per unit of downside risk	1.65	2.19	-0.54
Omega ratio: Gain probability vs. loss probability	1.22	1.28	-0.06
Calmar ratio: Return relative to maximum drawdown	1.41	1.75	-0.34
Martin ratio: Return relative to average drawdown	3.79	6.32	-2.53

FUMBX vs. FJRLX - Sharpe Ratio Comparison

The current FUMBX Sharpe Ratio is 1.11, which is comparable to the FJRLX Sharpe Ratio of 1.37. The chart below compares the historical Sharpe Ratios of FUMBX and FJRLX, 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

FUMBX vs. FJRLX - Drawdown Comparison

The maximum FUMBX drawdown since its inception was -8.83%, smaller than the maximum FJRLX drawdown of -9.89%. Use the drawdown chart below to compare losses from any high point for FUMBX and FJRLX.

Drawdown Indicators

	FUMBX	FJRLX	Difference
Max Drawdown Largest peak-to-trough decline	-8.83%	-9.89%	+1.06%
Max Drawdown (1Y) Largest decline over 1 year	-1.54%	-1.63%	+0.09%
Max Drawdown (3Y) Largest decline over 3 years	-1.57%	-1.63%	+0.06%
Max Drawdown (5Y) Largest decline over 5 years	-8.40%	-9.57%	+1.17%
Max Drawdown (10Y) Largest decline over 10 years	—	-9.89%	—
Current Drawdown Current decline from peak	-0.63%	-0.44%	-0.19%
Average Drawdown Average peak-to-trough decline	-1.84%	-1.33%	-0.51%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.57%	0.45%	+0.12%

Volatility

FUMBX vs. FJRLX - Volatility Comparison

Fidelity Short-Term Treasury Bond Index Fund (FUMBX) has a higher volatility of 0.55% compared to Fidelity Limited Term Bond Fund (FJRLX) at 0.50%. This indicates that FUMBX's price experiences larger fluctuations and is considered to be riskier than FJRLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FUMBX	FJRLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.55%	0.50%	+0.05%
Volatility (6M) Calculated over the trailing 6-month period	1.59%	1.70%	-0.11%
Volatility (1Y) Calculated over the trailing 1-year period	1.96%	2.09%	-0.13%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.93%	2.78%	+0.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.48%	2.41%	+0.07%

FUMBX vs. FJRLX - Expense Ratio Comparison

FUMBX has a 0.03% expense ratio, which is lower than FJRLX's 0.45% expense ratio.

Dividends

FUMBX vs. FJRLX - Dividend Comparison

FUMBX's dividend yield for the trailing twelve months is around 3.84%, more than FJRLX's 3.78% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FJRLX Fidelity Limited Term Bond Fund	3.78%	3.93%	3.08%	2.38%	1.26%	1.25%	2.38%	2.44%	2.29%	1.79%	1.88%	1.60%
FUMBX Fidelity Short-Term Treasury Bond Index Fund	3.84%	3.51%	2.91%	1.64%	0.86%	1.15%	1.41%	1.88%	1.64%	0.34%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FUMBX and FJRLX in my portfolio?

FUMBX and FJRLX have a correlation of 0.83, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FUMBX or FJRLX?

FUMBX has higher volatility (0.55%) compared to FJRLX (0.50%). In terms of maximum drawdown, FUMBX dropped -8.83% vs FJRLX's -9.89%.

Which has better risk-adjusted returns?

FJRLX currently has the higher Sharpe Ratio (1.37 vs 1.11), 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.