BCOSX vs. BUBSX

Last updated Jun 24, 2026

BCOSX (Baird Core Plus Bond Fund) and BUBSX (Baird Ultra Short Bond Fund) are both mutual funds - BCOSX is a Intermediate Core-Plus Bond fund managed by Baird, while BUBSX is a Ultrashort Bond fund managed by Baird. Over the past 10 years, BCOSX returned 2.07%/yr vs 2.52%/yr for BUBSX. At a 0.23 correlation, their price movements are largely independent. BCOSX charges 0.55%/yr vs 0.40%/yr for BUBSX.

Performance

BCOSX vs. BUBSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Baird Core Plus Bond Fund (BCOSX) and Baird Ultra Short Bond Fund (BUBSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BCOSX achieves a 0.32% return, which is significantly lower than BUBSX's 1.61% return. Over the past 10 years, BCOSX has underperformed BUBSX with an annualized return of 2.07%, while BUBSX has yielded a comparatively higher 2.52% annualized return.

BCOSX

• 1D: -0.28%
• 1M: 0.71%
• YTD: 0.32%
• 6M: 0.60%
• 1Y: 4.31%
• 3Y*: 4.52%
• 5Y*: 0.42%
• 10Y*: 2.07%

BUBSX

• 1D: 0.00%
• 1M: 0.33%
• YTD: 1.61%
• 6M: 1.65%
• 1Y: 4.01%
• 3Y*: 4.92%
• 5Y*: 3.51%
• 10Y*: 2.52%

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

BCOSX vs. BUBSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BCOSX Baird Core Plus Bond Fund	0.32%	7.22%	2.26%	6.60%	-13.09%	-1.23%	8.59%	9.69%	-0.74%	4.47%
BUBSX Baird Ultra Short Bond Fund	1.61%	4.53%	5.47%	5.43%	0.70%	-0.05%	1.66%	2.87%	1.61%	1.05%

Correlation

The correlation between BCOSX and BUBSX is 0.29, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.29
Correlation (3Y) Calculated over the trailing 3-year period	0.25
Correlation (5Y) Calculated over the trailing 5-year period	0.31
Correlation (10Y) Calculated over the trailing 10-year period	0.24
Correlation (All Time) Calculated using the full available price history since Jan 3, 2014	0.23

Return for Risk

BCOSX vs. BUBSX — Risk / Return Rank

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

BCOSX

BCOSX Risk / Return Rank: 23
BCOSX Sharpe Ratio Rank: 23
BCOSX Sortino Ratio Rank: 24
BCOSX Omega Ratio Rank: 22
BCOSX Calmar Ratio Rank: 26
BCOSX Martin Ratio Rank: 21

BUBSX

BUBSX Risk / Return Rank: 100
BUBSX Sharpe Ratio Rank: 100
BUBSX Sortino Ratio Rank: 100
BUBSX Omega Ratio Rank: 100
BUBSX Calmar Ratio Rank: 100
BUBSX 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.

BCOSX vs. BUBSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Baird Core Plus Bond Fund (BCOSX) and Baird Ultra Short Bond Fund (BUBSX). 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.

	BCOSX	BUBSX	Difference
Sharpe ratio: Return per unit of total volatility	1.27	6.21	-4.94
Sortino ratio: Return per unit of downside risk	1.91	17.60	-15.69
Omega ratio: Gain probability vs. loss probability	1.23	8.03	-6.80
Calmar ratio: Return relative to maximum drawdown	1.75	40.89	-39.14
Martin ratio: Return relative to average drawdown	4.87	249.94	-245.06

BCOSX vs. BUBSX - Sharpe Ratio Comparison

The current BCOSX Sharpe Ratio is 1.27, which is lower than the BUBSX Sharpe Ratio of 6.21. The chart below compares the historical Sharpe Ratios of BCOSX and BUBSX, 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

BCOSX vs. BUBSX - Drawdown Comparison

The maximum BCOSX drawdown since its inception was -18.39%, which is greater than BUBSX's maximum drawdown of -1.88%. Use the drawdown chart below to compare losses from any high point for BCOSX and BUBSX.

Drawdown Indicators

	BCOSX	BUBSX	Difference
Max Drawdown Largest peak-to-trough decline	-18.39%	-1.88%	-16.51%
Max Drawdown (1Y) Largest decline over 1 year	-2.58%	-0.10%	-2.48%
Max Drawdown (3Y) Largest decline over 3 years	-5.80%	-0.29%	-5.51%
Max Drawdown (5Y) Largest decline over 5 years	-18.39%	-0.79%	-17.60%
Max Drawdown (10Y) Largest decline over 10 years	-18.39%	-1.88%	-16.51%
Current Drawdown Current decline from peak	-1.33%	0.00%	-1.33%
Average Drawdown Average peak-to-trough decline	-2.30%	-0.07%	-2.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.93%	0.02%	+0.91%

Volatility

BCOSX vs. BUBSX - Volatility Comparison

Baird Core Plus Bond Fund (BCOSX) has a higher volatility of 1.10% compared to Baird Ultra Short Bond Fund (BUBSX) at 0.26%. This indicates that BCOSX's price experiences larger fluctuations and is considered to be riskier than BUBSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BCOSX	BUBSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.10%	0.26%	+0.84%
Volatility (6M) Calculated over the trailing 6-month period	2.62%	0.47%	+2.15%
Volatility (1Y) Calculated over the trailing 1-year period	3.57%	0.65%	+2.92%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.63%	0.76%	+4.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.66%	0.71%	+3.95%

BCOSX vs. BUBSX - Expense Ratio Comparison

BCOSX has a 0.55% expense ratio, which is higher than BUBSX's 0.40% expense ratio.

Dividends

BCOSX vs. BUBSX - Dividend Comparison

BCOSX's dividend yield for the trailing twelve months is around 3.87%, less than BUBSX's 4.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BCOSX Baird Core Plus Bond Fund	3.87%	3.75%	3.68%	3.17%	2.69%	2.57%	3.11%	2.60%	2.75%	2.47%	2.27%	2.49%
BUBSX Baird Ultra Short Bond Fund	4.03%	4.24%	5.04%	4.39%	1.29%	0.25%	1.14%	2.33%	1.90%	1.04%	0.81%	0.56%

Frequently Asked Questions

Can I hold both BCOSX and BUBSX in my portfolio?

BCOSX and BUBSX have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BCOSX or BUBSX?

BCOSX has higher volatility (1.10%) compared to BUBSX (0.26%). In terms of maximum drawdown, BCOSX dropped -18.39% vs BUBSX's -1.88%.

Which has better risk-adjusted returns?

BUBSX currently has the higher Sharpe Ratio (6.21 vs 1.27), 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.