RMCA vs. TAXF

Last updated Jun 25, 2026

RMCA (Rockefeller California Municipal Bond ETF) and TAXF (American Century Diversified Municipal Bond ETF) are both Municipal Bonds funds. Both are actively managed. Over the past year, RMCA returned 7.55% vs 7.48% for TAXF. A 0.78 correlation means they provide meaningful diversification when combined. RMCA charges 0.55%/yr vs 0.29%/yr for TAXF.

Performance

RMCA vs. TAXF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rockefeller California Municipal Bond ETF (RMCA) and American Century Diversified Municipal Bond ETF (TAXF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RMCA achieves a 3.06% return, which is significantly higher than TAXF's 2.30% return.

RMCA

• 1D: 0.31%
• 1M: 1.94%
• YTD: 3.06%
• 6M: 3.12%
• 1Y: 7.55%
• 3Y*: —
• 5Y*: —
• 10Y*: —

TAXF

• 1D: 0.08%
• 1M: 1.60%
• YTD: 2.30%
• 6M: 2.17%
• 1Y: 7.48%
• 3Y*: 3.99%
• 5Y*: 1.16%
• 10Y*: —

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

RMCA vs. TAXF - Yearly Performance Comparison

	2026 (YTD)	2025	2024
RMCA Rockefeller California Municipal Bond ETF	3.06%	2.35%	-0.24%
TAXF American Century Diversified Municipal Bond ETF	2.30%	4.30%	-0.26%

Correlation

The correlation between RMCA and TAXF is 0.74, 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	0.74
Correlation (All Time) Calculated using the full available price history since Aug 13, 2024	0.78

The correlation between RMCA and TAXF has been stable across timeframes, ranging from 0.74 to 0.78 - a consistent structural relationship.

Return for Risk

RMCA vs. TAXF — Risk / Return Rank

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

RMCA

RMCA Risk / Return Rank: 76
RMCA Sharpe Ratio Rank: 75
RMCA Sortino Ratio Rank: 82
RMCA Omega Ratio Rank: 85
RMCA Calmar Ratio Rank: 73
RMCA Martin Ratio Rank: 67

TAXF

TAXF Risk / Return Rank: 77
TAXF Sharpe Ratio Rank: 87
TAXF Sortino Ratio Rank: 89
TAXF Omega Ratio Rank: 92
TAXF Calmar Ratio Rank: 59
TAXF Martin Ratio Rank: 59

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.

RMCA vs. TAXF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rockefeller California Municipal Bond ETF (RMCA) and American Century Diversified Municipal Bond ETF (TAXF). 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.

	RMCA	TAXF	Difference
Sharpe ratio: Return per unit of total volatility	2.09	2.51	-0.42
Sortino ratio: Return per unit of downside risk	3.18	3.64	-0.46
Omega ratio: Gain probability vs. loss probability	1.45	1.54	-0.09
Calmar ratio: Return relative to maximum drawdown	3.23	2.57	+0.66
Martin ratio: Return relative to average drawdown	10.75	9.20	+1.54

RMCA vs. TAXF - Sharpe Ratio Comparison

The current RMCA Sharpe Ratio is 2.09, which is comparable to the TAXF Sharpe Ratio of 2.51. The chart below compares the historical Sharpe Ratios of RMCA and TAXF, 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

RMCA vs. TAXF - Drawdown Comparison

The maximum RMCA drawdown since its inception was -5.95%, smaller than the maximum TAXF drawdown of -13.93%. Use the drawdown chart below to compare losses from any high point for RMCA and TAXF.

Drawdown Indicators

	RMCA	TAXF	Difference
Max Drawdown Largest peak-to-trough decline	-5.95%	-13.93%	+7.98%
Max Drawdown (1Y) Largest decline over 1 year	-2.35%	-2.93%	+0.58%
Max Drawdown (3Y) Largest decline over 3 years	—	-5.53%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-13.93%	—
Current Drawdown Current decline from peak	0.00%	-0.15%	+0.15%
Average Drawdown Average peak-to-trough decline	-1.58%	-3.12%	+1.54%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.70%	0.81%	-0.11%

Volatility

RMCA vs. TAXF - Volatility Comparison

Rockefeller California Municipal Bond ETF (RMCA) has a higher volatility of 0.91% compared to American Century Diversified Municipal Bond ETF (TAXF) at 0.75%. This indicates that RMCA's price experiences larger fluctuations and is considered to be riskier than TAXF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RMCA	TAXF	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.91%	0.75%	+0.16%
Volatility (6M) Calculated over the trailing 6-month period	2.49%	2.28%	+0.21%
Volatility (1Y) Calculated over the trailing 1-year period	3.62%	2.99%	+0.63%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.32%	4.20%	+1.12%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.32%	4.64%	+0.68%

RMCA vs. TAXF - Expense Ratio Comparison

RMCA has a 0.55% expense ratio, which is higher than TAXF's 0.29% expense ratio.

Dividends

RMCA vs. TAXF - Dividend Comparison

RMCA's dividend yield for the trailing twelve months is around 4.33%, more than TAXF's 3.76% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
RMCA Rockefeller California Municipal Bond ETF	4.33%	4.51%	1.20%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
TAXF American Century Diversified Municipal Bond ETF	3.76%	3.68%	3.38%	2.93%	2.05%	1.58%	2.13%	2.64%	0.69%

Frequently Asked Questions

Can I hold both RMCA and TAXF in my portfolio?

RMCA and TAXF have a correlation of 0.74, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RMCA or TAXF?

RMCA has higher volatility (0.91%) compared to TAXF (0.75%). In terms of maximum drawdown, RMCA dropped -5.95% vs TAXF's -13.93%.

Which ETF is better, RMCA or TAXF?

On 1-year performance, RMCA leads with 7.55% vs 7.48% for TAXF. On fees, TAXF is cheaper at 0.29% per year. On volatility, TAXF has been the lower-risk option at 0.75%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, RMCA or TAXF?

Over the 1-year period, RMCA has performed better with a 7.55% return vs 7.48%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, RMCA or TAXF?

TAXF is cheaper with a 0.29% expense ratio, compared with 0.55% for RMCA.

Which ETF pays a higher dividend yield, RMCA or TAXF?

RMCA has the higher dividend yield at 4.33%, compared with 3.76% for TAXF.

What is the main difference between RMCA and TAXF?

They also come from different issuers: Rockefeller and American Century. Their fees differ too: 0.55% for RMCA and 0.29% for TAXF.

Which has better risk-adjusted returns?

TAXF currently has the higher Sharpe Ratio (2.51 vs 2.09), 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.