FUSI vs. BUXX

Last updated Jun 4, 2026

FUSI (American Century Multisector Floating Income ETF) and BUXX (Strive Enhanced Income Short Maturity ETF) are both Ultrashort Bond funds. Both are actively managed. Over the past year, FUSI returned 5.43% vs 4.41% for BUXX. At a 0.21 correlation, their price movements are largely independent. FUSI charges 0.28%/yr vs 0.26%/yr for BUXX.

Performance

FUSI vs. BUXX - Performance Comparison

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

Returns By Period

In the year-to-date period, FUSI achieves a 2.39% return, which is significantly higher than BUXX's 1.61% return.

FUSI

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

BUXX

• 1D: 0.05%
• 1M: 0.41%
• YTD: 1.61%
• 6M: 1.99%
• 1Y: 4.41%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FUSI vs. BUXX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
FUSI American Century Multisector Floating Income ETF	2.39%	4.85%	6.19%	2.68%
BUXX Strive Enhanced Income Short Maturity ETF	1.61%	4.84%	6.18%	2.89%

Correlation

The correlation between FUSI and BUXX is 0.22, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.22
Correlation (All Time) Calculated using the full available price history since Aug 11, 2023	0.21

Return for Risk

FUSI vs. BUXX — Risk / Return Rank

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

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

BUXX

BUXX Risk / Return Rank: 97
BUXX Sharpe Ratio Rank: 94
BUXX Sortino Ratio Rank: 97
BUXX Omega Ratio Rank: 97
BUXX Calmar Ratio Rank: 98
BUXX Martin Ratio Rank: 98

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.

FUSI vs. BUXX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Multisector Floating Income ETF (FUSI) and Strive Enhanced Income Short Maturity ETF (BUXX). 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.

	FUSI	BUXX	Difference
Sharpe ratio: Return per unit of total volatility	6.05	3.63	+2.42
Sortino ratio: Return per unit of downside risk	9.35	6.15	+3.20
Omega ratio: Gain probability vs. loss probability	2.99	1.87	+1.12
Calmar ratio: Return relative to maximum drawdown	12.25	15.02	-2.77
Martin ratio: Return relative to average drawdown	91.02	61.60	+29.42
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FUSI vs. BUXX - Sharpe Ratio Comparison

The current FUSI Sharpe Ratio is 6.05, which is higher than the BUXX Sharpe Ratio of 3.63. The chart below compares the historical Sharpe Ratios of FUSI and BUXX, 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

	FUSI	BUXX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	6.05	3.63	+2.42
Sharpe Ratio (All Time) Calculated using the full available price history	5.57	3.82	+1.75

Drawdowns

FUSI vs. BUXX - Drawdown Comparison

The maximum FUSI drawdown since its inception was -0.70%, which is greater than BUXX's maximum drawdown of -0.60%. Use the drawdown chart below to compare losses from any high point for FUSI and BUXX.

Drawdown Indicators

	FUSI	BUXX	Difference
Max Drawdown Largest peak-to-trough decline	-0.70%	-0.60%	-0.10%
Max Drawdown (1Y) Largest decline over 1 year	-0.45%	-0.29%	-0.16%
Max Drawdown (3Y) Largest decline over 3 years	-0.70%	—	—
Current Drawdown Current decline from peak	-0.03%	0.00%	-0.03%
Average Drawdown Average peak-to-trough decline	-0.04%	-0.05%	+0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.06%	0.07%	-0.01%

Volatility

FUSI vs. BUXX - Volatility Comparison

The current volatility for American Century Multisector Floating Income ETF (FUSI) is 0.25%, while Strive Enhanced Income Short Maturity ETF (BUXX) has a volatility of 0.30%. This indicates that FUSI experiences smaller price fluctuations and is considered to be less risky than BUXX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FUSI	BUXX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.25%	0.30%	-0.05%
Volatility (6M) Calculated over the trailing 6-month period	0.61%	0.78%	-0.17%
Volatility (1Y) Calculated over the trailing 1-year period	0.90%	1.22%	-0.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.09%	1.46%	-0.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.09%	1.46%	-0.37%

FUSI vs. BUXX - Expense Ratio Comparison

FUSI has a 0.28% expense ratio, which is higher than BUXX's 0.26% expense ratio.

Dividends

FUSI vs. BUXX - Dividend Comparison

FUSI's dividend yield for the trailing twelve months is around 4.85%, more than BUXX's 4.73% yield.

Position	TTM	2025	2024	2023
BUXX Strive Enhanced Income Short Maturity ETF	4.73%	4.95%	5.55%	1.92%
FUSI American Century Multisector Floating Income ETF	4.85%	5.28%	5.98%	4.97%

Frequently Asked Questions

Can I hold both FUSI and BUXX in my portfolio?

FUSI and BUXX have a correlation of 0.22, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FUSI or BUXX?

BUXX has higher volatility (0.30%) compared to FUSI (0.25%). In terms of maximum drawdown, FUSI dropped -0.70% vs BUXX's -0.60%.

Which ETF is better, FUSI or BUXX?

On 1-year performance, FUSI leads with 5.43% vs 4.41% for BUXX. On fees, BUXX is cheaper at 0.26% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, FUSI or BUXX?

Over the 1-year period, FUSI has performed better with a 5.43% return vs 4.41%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, FUSI or BUXX?

BUXX is cheaper with a 0.26% expense ratio, compared with 0.28% for FUSI.

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

FUSI has the higher dividend yield at 4.85%, compared with 4.73% for BUXX.

What is the main difference between FUSI and BUXX?

They also come from different issuers: American Century and Strive. Their fees differ too: 0.28% for FUSI and 0.26% for BUXX.

Which has better risk-adjusted returns?

FUSI currently has the higher Sharpe Ratio (6.05 vs 3.63), 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.