BBCPX vs. EVIBX

Last updated Jun 13, 2026

BBCPX (Bridge Builder Core Plus Bond Fund) and EVIBX (Eaton Vance Income Fund of Boston) are both mutual funds - BBCPX is a Total Bond Market fund managed by Bridge Builder, while EVIBX is a High Yield Bonds fund managed by Eaton Vance. Over the past 10 years, BBCPX returned 2.32%/yr vs 4.96%/yr for EVIBX. At a 0.36 correlation, their price movements are largely independent. BBCPX charges 0.15%/yr vs 1.00%/yr for EVIBX.

Performance

BBCPX vs. EVIBX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bridge Builder Core Plus Bond Fund (BBCPX) and Eaton Vance Income Fund of Boston (EVIBX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BBCPX achieves a 0.03% return, which is significantly lower than EVIBX's 0.83% return. Over the past 10 years, BBCPX has underperformed EVIBX with an annualized return of 2.32%, while EVIBX has yielded a comparatively higher 4.96% annualized return.

BBCPX

• 1D: 0.57%
• 1M: 0.61%
• YTD: 0.03%
• 6M: 0.89%
• 1Y: 5.16%
• 3Y*: 4.96%
• 5Y*: 0.69%
• 10Y*: 2.32%

EVIBX

• 1D: 0.39%
• 1M: 0.51%
• YTD: 0.83%
• 6M: 1.73%
• 1Y: 5.82%
• 3Y*: 7.28%
• 5Y*: 3.92%
• 10Y*: 4.96%

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

BBCPX vs. EVIBX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BBCPX Bridge Builder Core Plus Bond Fund	0.03%	8.97%	2.28%	6.58%	-13.24%	-0.29%	9.27%	9.31%	0.34%	4.20%
EVIBX Eaton Vance Income Fund of Boston	0.83%	8.21%	6.57%	10.67%	-8.16%	5.57%	4.83%	13.30%	-2.77%	6.03%

Correlation

The correlation between BBCPX and EVIBX is 0.57, 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	0.57
Correlation (3Y) Calculated over the trailing 3-year period	0.55
Correlation (5Y) Calculated over the trailing 5-year period	0.51
Correlation (10Y) Calculated over the trailing 10-year period	0.38
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016	0.37

Over the past year, BBCPX and EVIBX have become more correlated (0.57) than their long-term average of 0.36, meaning their price movements have been converging.

Return for Risk

BBCPX vs. EVIBX — Risk / Return Rank

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

BBCPX

BBCPX Risk / Return Rank: 31
BBCPX Sharpe Ratio Rank: 32
BBCPX Sortino Ratio Rank: 34
BBCPX Omega Ratio Rank: 32
BBCPX Calmar Ratio Rank: 30
BBCPX Martin Ratio Rank: 25

EVIBX

EVIBX Risk / Return Rank: 69
EVIBX Sharpe Ratio Rank: 54
EVIBX Sortino Ratio Rank: 76
EVIBX Omega Ratio Rank: 78
EVIBX Calmar Ratio Rank: 57
EVIBX Martin Ratio Rank: 81

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.

BBCPX vs. EVIBX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bridge Builder Core Plus Bond Fund (BBCPX) and Eaton Vance Income Fund of Boston (EVIBX). 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.

	BBCPX	EVIBX	Difference
Sharpe ratio: Return per unit of total volatility	1.31	1.79	-0.48
Sortino ratio: Return per unit of downside risk	1.93	3.11	-1.18
Omega ratio: Gain probability vs. loss probability	1.24	1.43	-0.20
Calmar ratio: Return relative to maximum drawdown	1.68	2.49	-0.81
Martin ratio: Return relative to average drawdown	4.88	12.63	-7.76

BBCPX vs. EVIBX - Sharpe Ratio Comparison

The current BBCPX Sharpe Ratio is 1.31, which is comparable to the EVIBX Sharpe Ratio of 1.79. The chart below compares the historical Sharpe Ratios of BBCPX and EVIBX, 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

BBCPX vs. EVIBX - Drawdown Comparison

The maximum BBCPX drawdown since its inception was -18.25%, smaller than the maximum EVIBX drawdown of -36.79%. Use the drawdown chart below to compare losses from any high point for BBCPX and EVIBX.

Drawdown Indicators

	BBCPX	EVIBX	Difference
Max Drawdown Largest peak-to-trough decline	-18.25%	-36.79%	+18.54%
Max Drawdown (1Y) Largest decline over 1 year	-3.41%	-2.35%	-1.06%
Max Drawdown (3Y) Largest decline over 3 years	-6.19%	-3.70%	-2.49%
Max Drawdown (5Y) Largest decline over 5 years	-18.25%	-12.67%	-5.58%
Max Drawdown (10Y) Largest decline over 10 years	-18.25%	-21.06%	+2.81%
Current Drawdown Current decline from peak	-1.55%	-0.00%	-1.55%
Average Drawdown Average peak-to-trough decline	-3.78%	-4.54%	+0.76%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.15%	0.46%	+0.69%

Volatility

BBCPX vs. EVIBX - Volatility Comparison

Bridge Builder Core Plus Bond Fund (BBCPX) has a higher volatility of 1.62% compared to Eaton Vance Income Fund of Boston (EVIBX) at 0.94%. This indicates that BBCPX's price experiences larger fluctuations and is considered to be riskier than EVIBX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BBCPX	EVIBX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.62%	0.94%	+0.68%
Volatility (6M) Calculated over the trailing 6-month period	3.30%	2.50%	+0.80%
Volatility (1Y) Calculated over the trailing 1-year period	4.38%	3.27%	+1.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.01%	4.89%	+1.12%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.90%	5.40%	-0.50%

BBCPX vs. EVIBX - Expense Ratio Comparison

BBCPX has a 0.15% expense ratio, which is lower than EVIBX's 1.00% expense ratio.

Dividends

BBCPX vs. EVIBX - Dividend Comparison

BBCPX's dividend yield for the trailing twelve months is around 4.51%, less than EVIBX's 6.09% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BBCPX Bridge Builder Core Plus Bond Fund	4.51%	4.79%	4.93%	4.12%	2.96%	2.39%	4.70%	5.00%	3.47%	2.71%	0.64%	0.00%
EVIBX Eaton Vance Income Fund of Boston	6.09%	5.91%	5.36%	4.59%	5.65%	5.04%	5.69%	5.62%	6.01%	5.53%	5.85%	6.54%

Frequently Asked Questions

Can I hold both BBCPX and EVIBX in my portfolio?

BBCPX and EVIBX have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BBCPX or EVIBX?

BBCPX has higher volatility (1.62%) compared to EVIBX (0.94%). In terms of maximum drawdown, BBCPX dropped -18.25% vs EVIBX's -36.79%.

Which has better risk-adjusted returns?

EVIBX currently has the higher Sharpe Ratio (1.79 vs 1.31), 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.