TAXF vs. FUSI

Last updated Jun 4, 2026

TAXF (American Century Diversified Municipal Bond ETF) and FUSI (American Century Multisector Floating Income ETF) are both exchange-traded funds - TAXF is a Municipal Bonds fund actively managed by American Century, while FUSI is a Ultrashort Bond fund actively managed by American Century. Both are actively managed. Over the past 3 years, TAXF returned 4.23%/yr vs 5.97%/yr for FUSI. At a 0.18 correlation, their price movements are largely independent. TAXF charges 0.29%/yr vs 0.28%/yr for FUSI.

Performance

TAXF vs. FUSI - Performance Comparison

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

Returns By Period

In the year-to-date period, TAXF achieves a 1.96% return, which is significantly lower than FUSI's 2.39% return.

TAXF

• 1D: -0.01%
• 1M: 0.82%
• YTD: 1.96%
• 6M: 2.23%
• 1Y: 8.33%
• 3Y*: 4.23%
• 5Y*: 1.07%
• 10Y*: —

FUSI

• 1D: -0.02%
• 1M: 0.77%
• YTD: 2.39%
• 6M: 2.67%
• 1Y: 5.43%
• 3Y*: 5.97%
• 5Y*: —
• 10Y*: —

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

TAXF vs. FUSI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
TAXF American Century Diversified Municipal Bond ETF	1.96%	4.30%	1.74%	5.15%
FUSI American Century Multisector Floating Income ETF	2.39%	4.85%	6.19%	5.89%

Correlation

The correlation between TAXF and FUSI is 0.23, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.23
Correlation (3Y) Calculated over the trailing 3-year period	0.20
Correlation (All Time) Calculated using the full available price history since Mar 17, 2023	0.18

Return for Risk

TAXF vs. FUSI — Risk / Return Rank

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

TAXF

TAXF Risk / Return Rank: 76
TAXF Sharpe Ratio Rank: 83
TAXF Sortino Ratio Rank: 87
TAXF Omega Ratio Rank: 90
TAXF Calmar Ratio Rank: 58
TAXF Martin Ratio Rank: 59

FUSI

FUSI Risk / Return Rank: 98
FUSI Sharpe Ratio Rank: 98
FUSI Sortino Ratio Rank: 99
FUSI Omega Ratio Rank: 99
FUSI Calmar Ratio Rank: 97
FUSI Martin Ratio Rank: 99

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.

TAXF vs. FUSI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Diversified Municipal Bond ETF (TAXF) and American Century Multisector Floating Income ETF (FUSI). 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.

	TAXF	FUSI	Difference
Sharpe ratio: Return per unit of total volatility	2.74	6.05	-3.32
Sortino ratio: Return per unit of downside risk	3.97	9.35	-5.38
Omega ratio: Gain probability vs. loss probability	1.59	2.99	-1.40
Calmar ratio: Return relative to maximum drawdown	2.86	12.25	-9.39
Martin ratio: Return relative to average drawdown	10.30	91.02	-80.71
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TAXF vs. FUSI - Sharpe Ratio Comparison

The current TAXF Sharpe Ratio is 2.74, which is lower than the FUSI Sharpe Ratio of 6.05. The chart below compares the historical Sharpe Ratios of TAXF and FUSI, 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

	TAXF	FUSI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.74	6.05	-3.32
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.26	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.62	5.57	-4.95

Drawdowns

TAXF vs. FUSI - Drawdown Comparison

The maximum TAXF drawdown since its inception was -13.93%, which is greater than FUSI's maximum drawdown of -0.70%. Use the drawdown chart below to compare losses from any high point for TAXF and FUSI.

Drawdown Indicators

	TAXF	FUSI	Difference
Max Drawdown Largest peak-to-trough decline	-13.93%	-0.70%	-13.23%
Max Drawdown (1Y) Largest decline over 1 year	-2.93%	-0.45%	-2.48%
Max Drawdown (3Y) Largest decline over 3 years	-5.53%	-0.70%	-4.83%
Max Drawdown (5Y) Largest decline over 5 years	-13.93%	—	—
Current Drawdown Current decline from peak	-0.48%	-0.03%	-0.45%
Average Drawdown Average peak-to-trough decline	-3.14%	-0.04%	-3.10%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.81%	0.06%	+0.75%

Volatility

TAXF vs. FUSI - Volatility Comparison

American Century Diversified Municipal Bond ETF (TAXF) has a higher volatility of 0.99% compared to American Century Multisector Floating Income ETF (FUSI) at 0.25%. This indicates that TAXF's price experiences larger fluctuations and is considered to be riskier than FUSI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TAXF	FUSI	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.99%	0.25%	+0.74%
Volatility (6M) Calculated over the trailing 6-month period	2.24%	0.61%	+1.63%
Volatility (1Y) Calculated over the trailing 1-year period	3.05%	0.90%	+2.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.20%	1.09%	+3.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.65%	1.09%	+3.56%

TAXF vs. FUSI - Expense Ratio Comparison

TAXF has a 0.29% expense ratio, which is higher than FUSI's 0.28% expense ratio.

Dividends

TAXF vs. FUSI - Dividend Comparison

TAXF's dividend yield for the trailing twelve months is around 3.47%, less than FUSI's 4.85% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
FUSI American Century Multisector Floating Income ETF	4.85%	5.28%	5.98%	4.97%	0.00%	0.00%	0.00%	0.00%	0.00%
TAXF American Century Diversified Municipal Bond ETF	3.47%	3.68%	3.38%	2.93%	2.05%	1.58%	2.13%	2.64%	0.69%

Frequently Asked Questions

Can I hold both TAXF and FUSI in my portfolio?

TAXF and FUSI have a correlation of 0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TAXF or FUSI?

TAXF has higher volatility (0.99%) compared to FUSI (0.25%). In terms of maximum drawdown, TAXF dropped -13.93% vs FUSI's -0.70%.

Which ETF is better, TAXF or FUSI?

On 3-year performance, FUSI leads with 5.97% vs 4.23% for TAXF. On fees, FUSI is cheaper at 0.28% per year. On volatility, FUSI has been the lower-risk option at 0.25%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, TAXF or FUSI?

Over the 3-year period, FUSI has performed better with a 5.97% return vs 4.23%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, TAXF or FUSI?

FUSI is cheaper with a 0.28% expense ratio, compared with 0.29% for TAXF.

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

FUSI has the higher dividend yield at 4.85%, compared with 3.47% for TAXF.

What is the main difference between TAXF and FUSI?

TAXF is categorized as Municipal Bonds, while FUSI is Ultrashort Bond. Their fees differ too: 0.29% for TAXF and 0.28% for FUSI.

Which has better risk-adjusted returns?

FUSI currently has the higher Sharpe Ratio (6.05 vs 2.74), 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.