FZOLX vs. BUSIX

Last updated Jun 4, 2026

FZOLX (Fidelity SAI Low Duration Income Fund) and BUSIX (Sterling Capital Ultra Short Bond Fund) are both Ultrashort Bond funds. At a 0.41 correlation, their price movements are largely independent. FZOLX charges 0.22%/yr vs 0.27%/yr for BUSIX.

Performance

FZOLX vs. BUSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity SAI Low Duration Income Fund (FZOLX) and Sterling Capital Ultra Short Bond Fund (BUSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

FZOLX

• 1D: 0.00%
• 1M: 0.32%
• YTD: 1.36%
• 6M: 1.79%
• 1Y: 4.26%
• 3Y*: 5.14%
• 5Y*: 3.53%
• 10Y*: —

BUSIX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FZOLX vs. BUSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
FZOLX Fidelity SAI Low Duration Income Fund	1.36%	4.85%	5.59%	5.72%	0.34%	-0.04%	0.11%
BUSIX Sterling Capital Ultra Short Bond Fund	0.83%	4.93%	5.87%	5.09%	0.32%	0.31%	0.43%

Correlation

The correlation between FZOLX and BUSIX is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.34
Correlation (3Y) Calculated over the trailing 3-year period	0.44
Correlation (5Y) Calculated over the trailing 5-year period	0.42
Correlation (All Time) Calculated using the full available price history since Sep 16, 2020	0.41

The correlation between FZOLX and BUSIX shifts across timeframes, from 0.34 (1 year) to 0.44 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

FZOLX vs. BUSIX — Risk / Return Rank

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

FZOLX

FZOLX Risk / Return Rank: 98
FZOLX Sharpe Ratio Rank: 95
FZOLX Sortino Ratio Rank: 99
FZOLX Omega Ratio Rank: 99
FZOLX Calmar Ratio Rank: 99
FZOLX Martin Ratio Rank: 100

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.

FZOLX vs. BUSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity SAI Low Duration Income Fund (FZOLX) and Sterling Capital Ultra Short Bond Fund (BUSIX). 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.

	FZOLX	BUSIX	Difference
Sharpe ratio Return per unit of total volatility	3.36	—	—
Sortino ratio Return per unit of downside risk	10.53	—	—
Omega ratio Gain probability vs. loss probability	3.63	—	—
Calmar ratio Return relative to maximum drawdown	14.30	—	—
Martin ratio Return relative to average drawdown	74.84	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	FZOLX	BUSIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.36	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	2.91	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	2.72	—	—

Drawdowns

Drawdown Indicators

	FZOLX	BUSIX	Difference
Max Drawdown Largest peak-to-trough decline	-1.10%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-0.30%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-0.30%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-1.10%	—	—
Current Drawdown Current decline from peak	0.00%	—	—
Average Drawdown Average peak-to-trough decline	-0.13%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	0.06%	—	—

Volatility

Volatility by Period

	FZOLX	BUSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.38%	—	—
Volatility (6M) Calculated over the trailing 6-month period	0.88%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	1.27%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.22%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.15%	—	—

FZOLX vs. BUSIX - Expense Ratio Comparison

FZOLX has a 0.22% expense ratio, which is lower than BUSIX's 0.27% 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

FZOLX vs. BUSIX - Dividend Comparison

FZOLX's dividend yield for the trailing twelve months is around 5.09%, more than BUSIX's 3.19% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BUSIX Sterling Capital Ultra Short Bond Fund	3.19%	4.29%	4.65%	3.48%	1.87%	1.24%	1.72%	2.60%	2.05%	1.57%	1.74%	1.36%
FZOLX Fidelity SAI Low Duration Income Fund	5.09%	5.26%	5.15%	4.03%	1.14%	0.16%	0.01%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FZOLX and BUSIX in my portfolio?

FZOLX and BUSIX have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.