FSTAX vs. FUMBX

Last updated Jun 4, 2026

FSTAX (Fidelity Advisor Strategic Income Fund Class A) and FUMBX (Fidelity Short-Term Treasury Bond Index Fund) are both mutual funds - FSTAX is a Total Bond Market fund managed by Fidelity, while FUMBX is a Government Bonds fund tracking the Bloomberg Barclays 1-5 Year U.S. Treasury Index. Over the past 5 years, FSTAX returned 2.83%/yr vs 1.31%/yr for FUMBX. A 0.50 correlation means they provide meaningful diversification when combined. FSTAX charges 0.97%/yr vs 0.03%/yr for FUMBX.

Performance

FSTAX vs. FUMBX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor Strategic Income Fund Class A (FSTAX) 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, FSTAX achieves a 3.19% return, which is significantly higher than FUMBX's 0.19% return.

FSTAX

• 1D: 0.17%
• 1M: 1.08%
• YTD: 3.19%
• 6M: 3.50%
• 1Y: 9.60%
• 3Y*: 7.53%
• 5Y*: 2.83%
• 10Y*: 4.02%

FUMBX

• 1D: 0.00%
• 1M: 0.07%
• YTD: 0.19%
• 6M: 0.46%
• 1Y: 3.39%
• 3Y*: 4.03%
• 5Y*: 1.31%
• 10Y*: —

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

FSTAX vs. FUMBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSTAX Fidelity Advisor Strategic Income Fund Class A	3.19%	8.68%	4.93%	8.82%	-11.98%	3.22%	7.21%	10.74%	-2.94%	0.32%
FUMBX Fidelity Short-Term Treasury Bond Index Fund	0.19%	5.83%	3.25%	4.47%	-5.84%	-1.38%	4.22%	4.19%	1.47%	-0.33%

Correlation

The correlation between FSTAX and FUMBX is 0.62, 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	0.62
Correlation (3Y) Calculated over the trailing 3-year period	0.64
Correlation (5Y) Calculated over the trailing 5-year period	0.65
Correlation (All Time) Calculated using the full available price history since Oct 20, 2017	0.50

The correlation between FSTAX and FUMBX shifts across timeframes, from 0.50 (all time) to 0.65 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

FSTAX vs. FUMBX — Risk / Return Rank

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

FSTAX

FSTAX Risk / Return Rank: 86
FSTAX Sharpe Ratio Rank: 86
FSTAX Sortino Ratio Rank: 88
FSTAX Omega Ratio Rank: 86
FSTAX Calmar Ratio Rank: 82
FSTAX Martin Ratio Rank: 85

FUMBX

FUMBX Risk / Return Rank: 36
FUMBX Sharpe Ratio Rank: 33
FUMBX Sortino Ratio Rank: 40
FUMBX Omega Ratio Rank: 40
FUMBX Calmar Ratio Rank: 34
FUMBX Martin Ratio Rank: 30

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.

FSTAX vs. FUMBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Strategic Income Fund Class A (FSTAX) 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.

	FSTAX	FUMBX	Difference
Sharpe ratio: Return per unit of total volatility	2.81	1.65	+1.15
Sortino ratio: Return per unit of downside risk	4.24	2.66	+1.58
Omega ratio: Gain probability vs. loss probability	1.59	1.34	+0.26
Calmar ratio: Return relative to maximum drawdown	3.74	2.22	+1.52
Martin ratio: Return relative to average drawdown	16.22	7.08	+9.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FSTAX vs. FUMBX - Sharpe Ratio Comparison

The current FSTAX Sharpe Ratio is 2.81, which is higher than the FUMBX Sharpe Ratio of 1.65. The chart below compares the historical Sharpe Ratios of FSTAX 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.

Sharpe Ratios by Period

	FSTAX	FUMBX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.81	1.65	+1.15
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.63	0.45	+0.18
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.91	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.73	-0.22

Drawdowns

FSTAX vs. FUMBX - Drawdown Comparison

The maximum FSTAX drawdown since its inception was -23.29%, which is greater than FUMBX's maximum drawdown of -8.83%. Use the drawdown chart below to compare losses from any high point for FSTAX and FUMBX.

Drawdown Indicators

	FSTAX	FUMBX	Difference
Max Drawdown Largest peak-to-trough decline	-23.29%	-8.83%	-14.46%
Max Drawdown (1Y) Largest decline over 1 year	-2.65%	-1.54%	-1.11%
Max Drawdown (3Y) Largest decline over 3 years	-4.04%	-1.57%	-2.47%
Max Drawdown (5Y) Largest decline over 5 years	-16.18%	-8.60%	-7.58%
Max Drawdown (10Y) Largest decline over 10 years	-16.18%	—	—
Current Drawdown Current decline from peak	0.00%	-0.77%	+0.77%
Average Drawdown Average peak-to-trough decline	-4.83%	-1.86%	-2.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.61%	0.48%	+0.13%

Volatility

FSTAX vs. FUMBX - Volatility Comparison

Fidelity Advisor Strategic Income Fund Class A (FSTAX) has a higher volatility of 1.35% compared to Fidelity Short-Term Treasury Bond Index Fund (FUMBX) at 0.69%. This indicates that FSTAX's price experiences larger fluctuations and is considered to be riskier than FUMBX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSTAX	FUMBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.35%	0.69%	+0.66%
Volatility (6M) Calculated over the trailing 6-month period	2.89%	1.49%	+1.40%
Volatility (1Y) Calculated over the trailing 1-year period	3.54%	2.06%	+1.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.49%	2.92%	+1.57%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.44%	2.49%	+1.95%

FSTAX vs. FUMBX - Expense Ratio Comparison

FSTAX has a 0.97% expense ratio, which is higher than FUMBX's 0.03% expense ratio.

Dividends

FSTAX vs. FUMBX - Dividend Comparison

FSTAX's dividend yield for the trailing twelve months is around 4.01%, more than FUMBX's 3.76% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FSTAX Fidelity Advisor Strategic Income Fund Class A	4.01%	4.05%	3.21%	3.70%	2.70%	4.01%	4.32%	4.06%	3.50%	3.70%	3.49%	2.89%
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 FSTAX and FUMBX in my portfolio?

FSTAX and FUMBX have a correlation of 0.62, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FSTAX or FUMBX?

FSTAX has higher volatility (1.35%) compared to FUMBX (0.69%). In terms of maximum drawdown, FSTAX dropped -23.29% vs FUMBX's -8.83%.

Which has better risk-adjusted returns?

FSTAX currently has the higher Sharpe Ratio (2.81 vs 1.65), 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.