BSBAX vs. FUMBX

Last updated Jun 26, 2026

BSBAX (Northern Short Bond Fund) and FUMBX (Fidelity Short-Term Treasury Bond Index Fund) are both Short-Term Bond funds. Over the past 5 years, BSBAX returned 1.53%/yr vs 1.37%/yr for FUMBX. A 0.72 correlation means they provide meaningful diversification when combined. BSBAX charges 0.40%/yr vs 0.03%/yr for FUMBX.

Performance

BSBAX vs. FUMBX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Northern Short Bond Fund (BSBAX) 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, BSBAX achieves a 0.41% return, which is significantly higher than FUMBX's 0.09% return.

BSBAX

• 1D: 0.05%
• 1M: -0.22%
• YTD: 0.41%
• 6M: 0.46%
• 1Y: 3.05%
• 3Y*: 3.99%
• 5Y*: 1.53%
• 10Y*: 1.91%

FUMBX

• 1D: 0.10%
• 1M: 0.17%
• YTD: 0.09%
• 6M: 0.44%
• 1Y: 2.79%
• 3Y*: 4.10%
• 5Y*: 1.37%
• 10Y*: —

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

BSBAX vs. FUMBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BSBAX Northern Short Bond Fund	0.41%	4.46%	4.07%	4.52%	-4.89%	-0.44%	3.73%	5.19%	0.73%	0.01%
FUMBX Fidelity Short-Term Treasury Bond Index Fund	0.09%	5.83%	3.25%	4.47%	-5.84%	-1.38%	4.22%	4.19%	1.47%	-0.33%

Correlation

The correlation between BSBAX and FUMBX is 0.64, 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	0.64
Correlation (3Y) Calculated over the trailing 3-year period	0.76
Correlation (5Y) Calculated over the trailing 5-year period	0.80
Correlation (All Time) Calculated using the full available price history since Oct 19, 2017	0.72

The correlation between BSBAX and FUMBX shifts across timeframes, from 0.64 (1 year) to 0.80 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

BSBAX vs. FUMBX — Risk / Return Rank

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

BSBAX

BSBAX Risk / Return Rank: 73
BSBAX Sharpe Ratio Rank: 68
BSBAX Sortino Ratio Rank: 88
BSBAX Omega Ratio Rank: 86
BSBAX Calmar Ratio Rank: 70
BSBAX Martin Ratio Rank: 52

FUMBX

FUMBX Risk / Return Rank: 32
FUMBX Sharpe Ratio Rank: 31
FUMBX Sortino Ratio Rank: 36
FUMBX Omega Ratio Rank: 36
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.

BSBAX vs. FUMBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Northern Short Bond Fund (BSBAX) 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.

	BSBAX	FUMBX	Difference
Sharpe ratio: Return per unit of total volatility	1.95	1.35	+0.60
Sortino ratio: Return per unit of downside risk	3.75	2.12	+1.64
Omega ratio: Gain probability vs. loss probability	1.50	1.27	+0.22
Calmar ratio: Return relative to maximum drawdown	2.74	1.82	+0.92
Martin ratio: Return relative to average drawdown	8.94	5.30	+3.64

BSBAX vs. FUMBX - Sharpe Ratio Comparison

The current BSBAX Sharpe Ratio is 1.95, which is higher than the FUMBX Sharpe Ratio of 1.35. The chart below compares the historical Sharpe Ratios of BSBAX 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

BSBAX vs. FUMBX - Drawdown Comparison

The maximum BSBAX drawdown since its inception was -7.31%, smaller than the maximum FUMBX drawdown of -8.83%. Use the drawdown chart below to compare losses from any high point for BSBAX and FUMBX.

Drawdown Indicators

	BSBAX	FUMBX	Difference
Max Drawdown Largest peak-to-trough decline	-7.31%	-8.83%	+1.52%
Max Drawdown (1Y) Largest decline over 1 year	-1.19%	-1.54%	+0.35%
Max Drawdown (3Y) Largest decline over 3 years	-1.20%	-1.57%	+0.37%
Max Drawdown (5Y) Largest decline over 5 years	-7.31%	-8.60%	+1.29%
Max Drawdown (10Y) Largest decline over 10 years	-7.31%	—	—
Current Drawdown Current decline from peak	-0.46%	-0.87%	+0.41%
Average Drawdown Average peak-to-trough decline	-0.62%	-1.85%	+1.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.36%	0.53%	-0.17%

Volatility

BSBAX vs. FUMBX - Volatility Comparison

Northern Short Bond Fund (BSBAX) and Fidelity Short-Term Treasury Bond Index Fund (FUMBX) have volatilities of 0.72% and 0.70%, 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

	BSBAX	FUMBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.72%	0.70%	+0.02%
Volatility (6M) Calculated over the trailing 6-month period	1.26%	1.56%	-0.30%
Volatility (1Y) Calculated over the trailing 1-year period	1.72%	2.08%	-0.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.13%	2.93%	-0.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.80%	2.49%	-0.69%

BSBAX vs. FUMBX - Expense Ratio Comparison

BSBAX has a 0.40% expense ratio, which is higher than FUMBX's 0.03% expense ratio.

Dividends

BSBAX vs. FUMBX - Dividend Comparison

BSBAX's dividend yield for the trailing twelve months is around 3.69%, less than FUMBX's 3.76% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BSBAX Northern Short Bond Fund	3.69%	3.20%	3.54%	2.49%	0.94%	1.20%	2.00%	2.62%	2.57%	1.85%	1.43%	1.25%
FUMBX Fidelity Short-Term Treasury Bond Index Fund	3.76%	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 BSBAX and FUMBX in my portfolio?

BSBAX and FUMBX have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BSBAX or FUMBX?

BSBAX has higher volatility (0.72%) compared to FUMBX (0.70%). In terms of maximum drawdown, BSBAX dropped -7.31% vs FUMBX's -8.83%.

Which has better risk-adjusted returns?

BSBAX currently has the higher Sharpe Ratio (1.95 vs 1.35), 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.