JSDUX vs. FUMBX

Last updated Jun 23, 2026

JSDUX (JPMorgan Short Duration Bond Fund Class R6) and FUMBX (Fidelity Short-Term Treasury Bond Index Fund) are both Short-Term Bond funds - JSDUX tracks the Bloomberg 1-3 Year U.S. Government/Credit Bond Index while FUMBX tracks the Bloomberg U.S. 1-5 Year Treasury Bond Index. Both are passively managed. Over the past 5 years, JSDUX returned 2.42%/yr vs 1.33%/yr for FUMBX. A 0.78 correlation means they provide meaningful diversification when combined. JSDUX charges 0.28%/yr vs 0.03%/yr for FUMBX.

Performance

JSDUX vs. FUMBX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in JPMorgan Short Duration Bond Fund Class R6 (JSDUX) and Fidelity Short-Term Treasury Bond Index Fund (FUMBX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, JSDUX achieves a 0.47% return, which is significantly higher than FUMBX's -0.01% return.

JSDUX

• 1D: 0.18%
• 1M: 0.35%
• YTD: 0.47%
• 6M: 0.64%
• 1Y: 3.39%
• 3Y*: 4.89%
• 5Y*: 2.42%
• 10Y*: 2.38%

FUMBX

• 1D: 0.10%
• 1M: 0.26%
• YTD: -0.01%
• 6M: 0.34%
• 1Y: 2.99%
• 3Y*: 4.07%
• 5Y*: 1.33%
• 10Y*: —

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

JSDUX vs. FUMBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
JSDUX JPMorgan Short Duration Bond Fund Class R6	0.47%	5.26%	5.22%	5.46%	-3.65%	-0.01%	4.57%	4.52%	1.32%	-0.05%
FUMBX Fidelity Short-Term Treasury Bond Index Fund	-0.01%	5.83%	3.25%	4.47%	-5.84%	-1.38%	4.22%	4.19%	1.47%	-0.33%

Correlation

The correlation between JSDUX and FUMBX is 0.77, 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	0.77
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (All Time) Calculated using the full available price history since Oct 19, 2017	0.78

The correlation between JSDUX and FUMBX has been stable across timeframes, ranging from 0.77 to 0.87 - a consistent structural relationship.

Return for Risk

JSDUX vs. FUMBX — Risk / Return Rank

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

JSDUX

JSDUX Risk / Return Rank: 76
JSDUX Sharpe Ratio Rank: 80
JSDUX Sortino Ratio Rank: 87
JSDUX Omega Ratio Rank: 86
JSDUX Calmar Ratio Rank: 74
JSDUX Martin Ratio Rank: 54

FUMBX

FUMBX Risk / Return Rank: 33
FUMBX Sharpe Ratio Rank: 31
FUMBX Sortino Ratio Rank: 37
FUMBX Omega Ratio Rank: 37
FUMBX Calmar Ratio Rank: 32
FUMBX Martin Ratio Rank: 27

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.

JSDUX vs. FUMBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for JPMorgan Short Duration Bond Fund Class R6 (JSDUX) and Fidelity Short-Term Treasury Bond Index Fund (FUMBX). 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.

	JSDUX	FUMBX	Difference
Sharpe ratio: Return per unit of total volatility	2.41	1.49	+0.92
Sortino ratio: Return per unit of downside risk	3.89	2.35	+1.55
Omega ratio: Gain probability vs. loss probability	1.55	1.30	+0.25
Calmar ratio: Return relative to maximum drawdown	3.20	2.02	+1.18
Martin ratio: Return relative to average drawdown	10.24	5.99	+4.25

JSDUX vs. FUMBX - Sharpe Ratio Comparison

The current JSDUX Sharpe Ratio is 2.41, which is higher than the FUMBX Sharpe Ratio of 1.49. The chart below compares the historical Sharpe Ratios of JSDUX and FUMBX, 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

JSDUX vs. FUMBX - Drawdown Comparison

The maximum JSDUX drawdown since its inception was -5.69%, smaller than the maximum FUMBX drawdown of -8.83%. Use the drawdown chart below to compare losses from any high point for JSDUX and FUMBX.

Drawdown Indicators

	JSDUX	FUMBX	Difference
Max Drawdown Largest peak-to-trough decline	-5.69%	-8.83%	+3.14%
Max Drawdown (1Y) Largest decline over 1 year	-1.09%	-1.54%	+0.45%
Max Drawdown (3Y) Largest decline over 3 years	-1.09%	-1.57%	+0.48%
Max Drawdown (5Y) Largest decline over 5 years	-5.69%	-8.60%	+2.91%
Max Drawdown (10Y) Largest decline over 10 years	-5.69%	—	—
Current Drawdown Current decline from peak	-0.37%	-0.96%	+0.59%
Average Drawdown Average peak-to-trough decline	-0.46%	-1.85%	+1.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.34%	0.52%	-0.18%

Volatility

JSDUX vs. FUMBX - Volatility Comparison

The current volatility for JPMorgan Short Duration Bond Fund Class R6 (JSDUX) is 0.50%, while Fidelity Short-Term Treasury Bond Index Fund (FUMBX) has a volatility of 0.72%. This indicates that JSDUX experiences smaller price fluctuations and is considered to be less risky than FUMBX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	JSDUX	FUMBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.50%	0.72%	-0.22%
Volatility (6M) Calculated over the trailing 6-month period	1.05%	1.56%	-0.51%
Volatility (1Y) Calculated over the trailing 1-year period	1.45%	2.08%	-0.63%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.01%	2.92%	-0.91%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.68%	2.49%	-0.81%

JSDUX vs. FUMBX - Expense Ratio Comparison

JSDUX has a 0.28% expense ratio, which is higher than FUMBX's 0.03% expense ratio.

Dividends

JSDUX vs. FUMBX - Dividend Comparison

JSDUX's dividend yield for the trailing twelve months is around 3.91%, more than FUMBX's 3.77% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FUMBX Fidelity Short-Term Treasury Bond Index Fund	3.77%	3.51%	2.91%	1.64%	0.86%	1.15%	1.41%	1.88%	1.64%	0.34%	0.00%	0.00%
JSDUX JPMorgan Short Duration Bond Fund Class R6	3.91%	3.92%	4.05%	3.01%	1.52%	1.27%	2.09%	2.55%	1.96%	1.49%	1.20%	1.27%

Frequently Asked Questions

Can I hold both JSDUX and FUMBX in my portfolio?

JSDUX and FUMBX have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, JSDUX or FUMBX?

FUMBX has higher volatility (0.72%) compared to JSDUX (0.50%). In terms of maximum drawdown, JSDUX dropped -5.69% vs FUMBX's -8.83%.

Which has better risk-adjusted returns?

JSDUX currently has the higher Sharpe Ratio (2.41 vs 1.49), 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.