BCOSX vs. BAGSX
BCOSX (Baird Core Plus Bond Fund) and BAGSX (Baird Aggregate Bond Fund) are both mutual funds - BCOSX is a Intermediate Core-Plus Bond fund managed by Baird, while BAGSX is a Intermediate Core Bond fund managed by Baird. Over the past 10 years, BCOSX returned 2.07%/yr vs 1.66%/yr for BAGSX. With a 0.96 correlation, they move nearly in lockstep. Both charge a 0.55% expense ratio.
Performance
BCOSX vs. BAGSX - Performance Comparison
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Returns By Period
In the year-to-date period, BCOSX achieves a 0.32% return, which is significantly higher than BAGSX's 0.21% return. Over the past 10 years, BCOSX has outperformed BAGSX with an annualized return of 2.07%, while BAGSX has yielded a comparatively lower 1.66% 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%
BAGSX
- 1D
- -0.29%
- 1M
- 0.72%
- YTD
- 0.21%
- 6M
- 0.42%
- 1Y
- 4.05%
- 3Y*
- 4.14%
- 5Y*
- 0.04%
- 10Y*
- 1.66%
BCOSX vs. BAGSX - 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% |
BAGSX Baird Aggregate Bond Fund | 0.21% | 7.11% | 1.63% | 6.12% | -13.52% | -1.74% | 8.42% | 9.17% | -0.55% | 3.90% |
Correlation
The correlation between BCOSX and BAGSX is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.97 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.98 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.98 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.97 |
Correlation (All Time) Calculated using the full available price history since Sep 29, 2000 | 0.96 |
The correlation between BCOSX and BAGSX has been stable across timeframes, ranging from 0.96 to 0.98 - a consistent structural relationship.
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Return for Risk
BCOSX vs. BAGSX — Risk / Return Rank
BCOSX
BAGSX
BCOSX vs. BAGSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Baird Core Plus Bond Fund (BCOSX) and Baird Aggregate Bond Fund (BAGSX). 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 | BAGSX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.10 | ||
| Sortino ratioReturn per unit of downside risk | +0.18 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 1.21 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | 1.75 | 1.54 | +0.21 |
| Martin ratioReturn relative to average drawdown | 4.87 | 4.27 | +0.60 |
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Drawdowns
BCOSX vs. BAGSX - Drawdown Comparison
The maximum BCOSX drawdown since its inception was -18.39%, roughly equal to the maximum BAGSX drawdown of -18.97%. Use the drawdown chart below to compare losses from any high point for BCOSX and BAGSX.
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Drawdown Indicators
| BCOSX | BAGSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.39% | -18.97% | +0.58% |
Max Drawdown (1Y)Largest decline over 1 year | -2.58% | -2.84% | +0.26% |
Max Drawdown (3Y)Largest decline over 3 years | -5.80% | -6.17% | +0.37% |
Max Drawdown (5Y)Largest decline over 5 years | -18.39% | -18.84% | +0.45% |
Max Drawdown (10Y)Largest decline over 10 years | -18.39% | -18.97% | +0.58% |
Current DrawdownCurrent decline from peak | -1.33% | -1.63% | +0.30% |
Average DrawdownAverage peak-to-trough decline | -2.30% | -2.52% | +0.22% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.93% | 1.02% | -0.09% |
Volatility
BCOSX vs. BAGSX - Volatility Comparison
Baird Core Plus Bond Fund (BCOSX) and Baird Aggregate Bond Fund (BAGSX) have volatilities of 1.10% and 1.15%, 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.
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Volatility by Period
| BCOSX | BAGSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.10% | 1.15% | -0.05% |
Volatility (6M)Calculated over the trailing 6-month period | 2.62% | 2.77% | -0.15% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.57% | 3.74% | -0.17% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.63% | 5.93% | -0.30% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.66% | 4.90% | -0.24% |
BCOSX vs. BAGSX - Expense Ratio Comparison
Both BCOSX and BAGSX have an expense ratio of 0.55%.
Dividends
BCOSX vs. BAGSX - Dividend Comparison
BCOSX's dividend yield for the trailing twelve months is around 3.87%, more than BAGSX's 3.81% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BAGSX Baird Aggregate Bond Fund | 3.81% | 3.69% | 3.62% | 3.10% | 2.33% | 1.68% | 3.02% | 2.41% | 2.53% | 2.21% | 1.96% | 2.14% |
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% |
Frequently Asked Questions
With a correlation of 0.97, BCOSX and BAGSX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
BAGSX has higher volatility (1.15%) compared to BCOSX (1.10%). In terms of maximum drawdown, BCOSX dropped -18.39% vs BAGSX's -18.97%.
BCOSX currently has the higher Sharpe Ratio (1.27 vs 1.17), 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.
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