BCHYX vs. VCAIX

Last updated Jun 24, 2026

BCHYX (American Century California High Yield Municipal Fund) and VCAIX (Vanguard California Intermediate-Term Tax-Exempt Fund Investor Shares) are both Municipal Bonds funds. Over the past 10 years, BCHYX returned 2.32%/yr vs 2.16%/yr for VCAIX. Their correlation of 0.82 suggests significant overlap in exposure. BCHYX charges 0.49%/yr vs 0.17%/yr for VCAIX.

Performance

BCHYX vs. VCAIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century California High Yield Municipal Fund (BCHYX) and Vanguard California Intermediate-Term Tax-Exempt Fund Investor Shares (VCAIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BCHYX achieves a 2.21% return, which is significantly higher than VCAIX's 1.13% return. Over the past 10 years, BCHYX has outperformed VCAIX with an annualized return of 2.32%, while VCAIX has yielded a comparatively lower 2.16% annualized return.

BCHYX

• 1D: -0.10%
• 1M: 1.91%
• YTD: 2.21%
• 6M: 2.77%
• 1Y: 7.77%
• 3Y*: 4.65%
• 5Y*: 0.73%
• 10Y*: 2.32%

VCAIX

• 1D: -0.09%
• 1M: 1.23%
• YTD: 1.13%
• 6M: 1.48%
• 1Y: 6.20%
• 3Y*: 4.31%
• 5Y*: 1.64%
• 10Y*: 2.16%

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

BCHYX vs. VCAIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BCHYX American Century California High Yield Municipal Fund	2.21%	3.48%	4.07%	6.69%	-12.77%	3.82%	3.95%	9.92%	0.65%	8.50%
VCAIX Vanguard California Intermediate-Term Tax-Exempt Fund Investor Shares	1.13%	5.83%	2.15%	5.82%	-6.69%	0.40%	4.53%	6.95%	1.19%	4.83%

Correlation

The correlation between BCHYX and VCAIX is 0.87, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.87
Correlation (3Y) Calculated over the trailing 3-year period	0.90
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (10Y) Calculated over the trailing 10-year period	0.88
Correlation (All Time) Calculated using the full available price history since Jun 20, 1996	0.82

The correlation between BCHYX and VCAIX has been stable across timeframes, ranging from 0.82 to 0.91 - a consistent structural relationship.

Return for Risk

BCHYX vs. VCAIX — Risk / Return Rank

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

BCHYX

BCHYX Risk / Return Rank: 71
BCHYX Sharpe Ratio Rank: 80
BCHYX Sortino Ratio Rank: 88
BCHYX Omega Ratio Rank: 88
BCHYX Calmar Ratio Rank: 53
BCHYX Martin Ratio Rank: 47

VCAIX

VCAIX Risk / Return Rank: 69
VCAIX Sharpe Ratio Rank: 91
VCAIX Sortino Ratio Rank: 93
VCAIX Omega Ratio Rank: 95
VCAIX Calmar Ratio Rank: 35
VCAIX Martin Ratio Rank: 31

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.

BCHYX vs. VCAIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century California High Yield Municipal Fund (BCHYX) and Vanguard California Intermediate-Term Tax-Exempt Fund Investor Shares (VCAIX). 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.

	BCHYX	VCAIX	Difference
Sharpe ratio: Return per unit of total volatility	2.41	2.82	-0.42
Sortino ratio: Return per unit of downside risk	3.95	4.34	-0.39
Omega ratio: Gain probability vs. loss probability	1.58	1.74	-0.15
Calmar ratio: Return relative to maximum drawdown	2.67	2.12	+0.55
Martin ratio: Return relative to average drawdown	9.25	6.72	+2.53

BCHYX vs. VCAIX - Sharpe Ratio Comparison

The current BCHYX Sharpe Ratio is 2.41, which is comparable to the VCAIX Sharpe Ratio of 2.82. The chart below compares the historical Sharpe Ratios of BCHYX and VCAIX, 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

BCHYX vs. VCAIX - Drawdown Comparison

The maximum BCHYX drawdown since its inception was -18.35%, which is greater than VCAIX's maximum drawdown of -11.22%. Use the drawdown chart below to compare losses from any high point for BCHYX and VCAIX.

Drawdown Indicators

	BCHYX	VCAIX	Difference
Max Drawdown Largest peak-to-trough decline	-18.35%	-11.22%	-7.13%
Max Drawdown (1Y) Largest decline over 1 year	-2.97%	-2.98%	+0.01%
Max Drawdown (3Y) Largest decline over 3 years	-7.69%	-4.25%	-3.44%
Max Drawdown (5Y) Largest decline over 5 years	-18.35%	-11.22%	-7.13%
Max Drawdown (10Y) Largest decline over 10 years	-18.35%	-11.22%	-7.13%
Current Drawdown Current decline from peak	-0.10%	-1.01%	+0.91%
Average Drawdown Average peak-to-trough decline	-2.38%	-1.36%	-1.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.85%	0.94%	-0.09%

Volatility

BCHYX vs. VCAIX - Volatility Comparison

American Century California High Yield Municipal Fund (BCHYX) has a higher volatility of 0.84% compared to Vanguard California Intermediate-Term Tax-Exempt Fund Investor Shares (VCAIX) at 0.61%. This indicates that BCHYX's price experiences larger fluctuations and is considered to be riskier than VCAIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BCHYX	VCAIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.84%	0.61%	+0.23%
Volatility (6M) Calculated over the trailing 6-month period	2.35%	1.78%	+0.57%
Volatility (1Y) Calculated over the trailing 1-year period	3.29%	2.24%	+1.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.88%	3.24%	+1.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.81%	3.42%	+1.39%

BCHYX vs. VCAIX - Expense Ratio Comparison

BCHYX has a 0.49% expense ratio, which is higher than VCAIX's 0.17% expense ratio.

Dividends

BCHYX vs. VCAIX - Dividend Comparison

BCHYX's dividend yield for the trailing twelve months is around 3.95%, more than VCAIX's 3.09% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BCHYX American Century California High Yield Municipal Fund	3.95%	4.58%	4.41%	3.67%	2.55%	2.57%	3.07%	3.50%	3.52%	3.50%	3.59%	3.67%
VCAIX Vanguard California Intermediate-Term Tax-Exempt Fund Investor Shares	3.09%	3.75%	3.27%	2.49%	2.28%	1.71%	2.19%	2.64%	2.63%	2.56%	2.65%	2.78%

Frequently Asked Questions

Can I hold both BCHYX and VCAIX in my portfolio?

BCHYX and VCAIX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BCHYX or VCAIX?

BCHYX has higher volatility (0.84%) compared to VCAIX (0.61%). In terms of maximum drawdown, BCHYX dropped -18.35% vs VCAIX's -11.22%.

Which has better risk-adjusted returns?

VCAIX currently has the higher Sharpe Ratio (2.82 vs 2.41), 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.