WACPX vs. FTBFX

Last updated Jun 3, 2026

WACPX (Western Asset Core Plus Bond Fund Class I) and FTBFX (Fidelity Total Bond Fund) are both Total Bond Market funds. Over the past 10 years, WACPX returned 1.83%/yr vs 2.47%/yr for FTBFX. Their correlation of 0.88 suggests significant overlap in exposure. Both charge a 0.45% expense ratio.

Performance

WACPX vs. FTBFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Western Asset Core Plus Bond Fund Class I (WACPX) and Fidelity Total Bond Fund (FTBFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WACPX achieves a 0.36% return, which is significantly lower than FTBFX's 0.57% return. Over the past 10 years, WACPX has underperformed FTBFX with an annualized return of 1.83%, while FTBFX has yielded a comparatively higher 2.47% annualized return.

WACPX

• 1D: -0.11%
• 1M: 0.19%
• YTD: 0.36%
• 6M: 0.45%
• 1Y: 5.76%
• 3Y*: 4.03%
• 5Y*: -1.14%
• 10Y*: 1.83%

FTBFX

• 1D: -0.10%
• 1M: 0.15%
• YTD: 0.57%
• 6M: 0.50%
• 1Y: 5.75%
• 3Y*: 4.84%
• 5Y*: 0.72%
• 10Y*: 2.47%

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

WACPX vs. FTBFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WACPX Western Asset Core Plus Bond Fund Class I	0.36%	7.99%	-0.77%	7.51%	-18.79%	-2.24%	9.42%	12.29%	-1.47%	7.10%
FTBFX Fidelity Total Bond Fund	0.57%	7.50%	2.13%	7.25%	-13.58%	-0.44%	9.34%	9.89%	-0.66%	4.19%

Correlation

The correlation between WACPX and FTBFX is 0.96 - 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	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.92
Correlation (All Time) Calculated using the full available price history since Oct 17, 2002	0.88

The correlation between WACPX and FTBFX has been stable across timeframes, ranging from 0.88 to 0.96 - a consistent structural relationship.

Return for Risk

WACPX vs. FTBFX — Risk / Return Rank

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

WACPX

WACPX Risk / Return Rank: 19
WACPX Sharpe Ratio Rank: 19
WACPX Sortino Ratio Rank: 20
WACPX Omega Ratio Rank: 18
WACPX Calmar Ratio Rank: 20
WACPX Martin Ratio Rank: 19

FTBFX

FTBFX Risk / Return Rank: 24
FTBFX Sharpe Ratio Rank: 22
FTBFX Sortino Ratio Rank: 24
FTBFX Omega Ratio Rank: 22
FTBFX Calmar Ratio Rank: 29
FTBFX Martin Ratio Rank: 25

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.

WACPX vs. FTBFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Western Asset Core Plus Bond Fund Class I (WACPX) and Fidelity Total Bond Fund (FTBFX). 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.

	WACPX	FTBFX	Difference
Sharpe ratio Return per unit of total volatility	1.29	1.40	-0.11
Sortino ratio Return per unit of downside risk	1.95	2.10	-0.15
Omega ratio Gain probability vs. loss probability	1.23	1.25	-0.02
Calmar ratio Return relative to maximum drawdown	1.70	2.08	-0.39
Martin ratio Return relative to average drawdown	5.29	6.41	-1.12
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WACPX vs. FTBFX - Sharpe Ratio Comparison

The current WACPX Sharpe Ratio is 1.29, which is comparable to the FTBFX Sharpe Ratio of 1.40. The chart below compares the historical Sharpe Ratios of WACPX and FTBFX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	WACPX	FTBFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.29	1.40	-0.11
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.15	0.13	-0.28
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.30	0.52	-0.23
Sharpe Ratio (All Time) Calculated using the full available price history	0.91	0.93	-0.02

Drawdowns

WACPX vs. FTBFX - Drawdown Comparison

The maximum WACPX drawdown since its inception was -25.86%, which is greater than FTBFX's maximum drawdown of -18.25%. Use the drawdown chart below to compare losses from any high point for WACPX and FTBFX.

Drawdown Indicators

	WACPX	FTBFX	Difference
Max Drawdown Largest peak-to-trough decline	-25.86%	-18.25%	-7.61%
Max Drawdown (1Y) Largest decline over 1 year	-3.60%	-2.89%	-0.71%
Max Drawdown (3Y) Largest decline over 3 years	-9.55%	-5.82%	-3.73%
Max Drawdown (5Y) Largest decline over 5 years	-25.46%	-18.25%	-7.21%
Max Drawdown (10Y) Largest decline over 10 years	-25.86%	-18.25%	-7.61%
Current Drawdown Current decline from peak	-8.22%	-1.31%	-6.91%
Average Drawdown Average peak-to-trough decline	-3.61%	-2.32%	-1.29%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.15%	0.94%	+0.21%

Volatility

WACPX vs. FTBFX - Volatility Comparison

Western Asset Core Plus Bond Fund Class I (WACPX) has a higher volatility of 1.50% compared to Fidelity Total Bond Fund (FTBFX) at 1.40%. This indicates that WACPX's price experiences larger fluctuations and is considered to be riskier than FTBFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WACPX	FTBFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.50%	1.40%	+0.10%
Volatility (6M) Calculated over the trailing 6-month period	3.13%	2.81%	+0.32%
Volatility (1Y) Calculated over the trailing 1-year period	4.32%	3.89%	+0.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.41%	5.67%	+1.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.17%	4.73%	+1.44%

WACPX vs. FTBFX - Expense Ratio Comparison

Both WACPX and FTBFX have an expense ratio of 0.45%.

Dividends

WACPX vs. FTBFX - Dividend Comparison

WACPX's dividend yield for the trailing twelve months is around 4.78%, more than FTBFX's 4.36% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FTBFX Fidelity Total Bond Fund	4.36%	4.36%	4.15%	4.15%	2.54%	1.89%	5.22%	3.03%	3.19%	2.97%	3.61%	3.30%
WACPX Western Asset Core Plus Bond Fund Class I	4.78%	4.70%	4.80%	4.88%	3.46%	2.99%	4.12%	4.98%	4.01%	3.30%	4.77%	3.19%

Frequently Asked Questions

Can I hold both WACPX and FTBFX in my portfolio?

With a correlation of 0.96, WACPX and FTBFX 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.

Which is riskier, WACPX or FTBFX?

WACPX has higher volatility (1.50%) compared to FTBFX (1.40%). In terms of maximum drawdown, WACPX dropped -25.86% vs FTBFX's -18.25%.

Which has better risk-adjusted returns?

FTBFX currently has the higher Sharpe Ratio (1.40 vs 1.29), 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.