BUSIX vs. PRTBX

Last updated Jun 4, 2026

BUSIX (Sterling Capital Ultra Short Bond Fund) and PRTBX (Permanent Portfolio Short-Term Treasury Portfolio) are both Ultrashort Bond funds. At a 0.18 correlation, their price movements are largely independent. BUSIX charges 0.27%/yr vs 0.65%/yr for PRTBX.

Performance

BUSIX vs. PRTBX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Sterling Capital Ultra Short Bond Fund (BUSIX) and Permanent Portfolio Short-Term Treasury Portfolio (PRTBX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

BUSIX

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

PRTBX

• 1D: 0.00%
• 1M: 0.18%
• YTD: 0.76%
• 6M: 1.03%
• 1Y: 3.18%
• 3Y*: 3.85%
• 5Y*: 1.98%
• 10Y*: 1.26%

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

BUSIX vs. PRTBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BUSIX Sterling Capital Ultra Short Bond Fund	0.83%	4.93%	5.87%	5.09%	0.32%	0.31%	2.16%	3.27%	1.66%	1.37%
PRTBX Permanent Portfolio Short-Term Treasury Portfolio	0.76%	4.19%	4.12%	3.79%	-2.28%	-0.74%	0.10%	1.76%	1.16%	0.12%

Correlation

The correlation between BUSIX and PRTBX is 0.21, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.21
Correlation (3Y) Calculated over the trailing 3-year period	0.30
Correlation (5Y) Calculated over the trailing 5-year period	0.34
Correlation (10Y) Calculated over the trailing 10-year period	0.22
Correlation (All Time) Calculated using the full available price history since Jan 3, 2013	0.18

The correlation between BUSIX and PRTBX shifts across timeframes, from 0.18 (all time) to 0.34 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

BUSIX vs. PRTBX — Risk / Return Rank

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

PRTBX

PRTBX Risk / Return Rank: 99
PRTBX Sharpe Ratio Rank: 99
PRTBX Sortino Ratio Rank: 99
PRTBX Omega Ratio Rank: 98
PRTBX Calmar Ratio Rank: 99
PRTBX Martin Ratio Rank: 99

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.

BUSIX vs. PRTBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Sterling Capital Ultra Short Bond Fund (BUSIX) and Permanent Portfolio Short-Term Treasury Portfolio (PRTBX). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	BUSIX	PRTBX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	4.73	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	1.65	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	1.46	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	3.89	—

Drawdowns

Drawdown Indicators

	BUSIX	PRTBX	Difference
Max Drawdown Largest peak-to-trough decline	—	-5.13%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-0.32%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-0.44%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-3.70%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-4.36%	—
Current Drawdown Current decline from peak	—	-0.02%	—
Average Drawdown Average peak-to-trough decline	—	-0.96%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.07%	—

Volatility

Volatility by Period

	BUSIX	PRTBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.15%	—
Volatility (6M) Calculated over the trailing 6-month period	—	0.40%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	0.68%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	1.21%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	0.86%	—

BUSIX vs. PRTBX - Expense Ratio Comparison

BUSIX has a 0.27% expense ratio, which is lower than PRTBX's 0.65% expense ratio.

Dividends

BUSIX vs. PRTBX - Dividend Comparison

BUSIX's dividend yield for the trailing twelve months is around 3.19%, less than PRTBX's 3.36% 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%
PRTBX Permanent Portfolio Short-Term Treasury Portfolio	3.36%	3.39%	2.69%	1.79%	0.00%	0.00%	0.21%	1.65%	0.83%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BUSIX and PRTBX in my portfolio?

BUSIX and PRTBX have a correlation of 0.21, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.