RAVI vs. BUXX

Last updated Jun 6, 2026

RAVI (FlexShares Ultra-Short Income ETF) and BUXX (Strive Enhanced Income Short Maturity ETF) are both Ultrashort Bond funds. Both are actively managed. Over the past year, RAVI returned 4.54% vs 4.35% for BUXX. At a 0.25 correlation, their price movements are largely independent. RAVI charges 0.25%/yr vs 0.26%/yr for BUXX.

Performance

RAVI vs. BUXX - Performance Comparison

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

Returns By Period

The year-to-date returns for both investments are quite close, with RAVI having a 1.54% return and BUXX slightly higher at 1.61%.

RAVI

• 1D: 0.02%
• 1M: 0.30%
• YTD: 1.54%
• 6M: 1.91%
• 1Y: 4.54%
• 3Y*: 5.21%
• 5Y*: 3.50%
• 10Y*: 2.67%

BUXX

• 1D: 0.00%
• 1M: 0.31%
• YTD: 1.61%
• 6M: 1.99%
• 1Y: 4.35%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

RAVI vs. BUXX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
RAVI FlexShares Ultra-Short Income ETF	1.54%	4.98%	5.67%	2.35%
BUXX Strive Enhanced Income Short Maturity ETF	1.61%	4.84%	6.18%	2.89%

Correlation

The correlation between RAVI and BUXX is 0.18, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.18
Correlation (All Time) Calculated using the full available price history since Aug 11, 2023	0.25

Return for Risk

RAVI vs. BUXX — Risk / Return Rank

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

RAVI

RAVI Risk / Return Rank: 99
RAVI Sharpe Ratio Rank: 100
RAVI Sortino Ratio Rank: 100
RAVI Omega Ratio Rank: 100
RAVI Calmar Ratio Rank: 99
RAVI Martin Ratio Rank: 99

BUXX

BUXX Risk / Return Rank: 97
BUXX Sharpe Ratio Rank: 95
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.

RAVI vs. BUXX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FlexShares Ultra-Short Income ETF (RAVI) 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.

	RAVI	BUXX	Difference
Sharpe ratio: Return per unit of total volatility	11.36	3.60	+7.76
Sortino ratio: Return per unit of downside risk	25.55	6.09	+19.46
Omega ratio: Gain probability vs. loss probability	5.72	1.87	+3.85
Calmar ratio: Return relative to maximum drawdown	39.01	14.85	+24.16
Martin ratio: Return relative to average drawdown	233.56	61.16	+172.40
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RAVI vs. BUXX - Sharpe Ratio Comparison

The current RAVI Sharpe Ratio is 11.36, which is higher than the BUXX Sharpe Ratio of 3.60. The chart below compares the historical Sharpe Ratios of RAVI 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

	RAVI	BUXX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	11.36	3.60	+7.76
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	2.49	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	2.09	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	2.03	3.82	-1.79

Drawdowns

RAVI vs. BUXX - Drawdown Comparison

The maximum RAVI drawdown since its inception was -3.72%, which is greater than BUXX's maximum drawdown of -0.60%. Use the drawdown chart below to compare losses from any high point for RAVI and BUXX.

Drawdown Indicators

	RAVI	BUXX	Difference
Max Drawdown Largest peak-to-trough decline	-3.72%	-0.60%	-3.12%
Max Drawdown (1Y) Largest decline over 1 year	-0.12%	-0.29%	+0.17%
Max Drawdown (3Y) Largest decline over 3 years	-0.36%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-3.28%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-3.72%	—	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-0.17%	-0.05%	-0.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.02%	0.07%	-0.05%

Volatility

RAVI vs. BUXX - Volatility Comparison

The current volatility for FlexShares Ultra-Short Income ETF (RAVI) is 0.14%, while Strive Enhanced Income Short Maturity ETF (BUXX) has a volatility of 0.30%. This indicates that RAVI 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

	RAVI	BUXX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.14%	0.30%	-0.16%
Volatility (6M) Calculated over the trailing 6-month period	0.30%	0.78%	-0.48%
Volatility (1Y) Calculated over the trailing 1-year period	0.41%	1.22%	-0.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.41%	1.46%	-0.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.28%	1.46%	-0.18%

RAVI vs. BUXX - Expense Ratio Comparison

RAVI has a 0.25% expense ratio, which is lower than BUXX's 0.26% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

RAVI vs. BUXX - Dividend Comparison

RAVI's dividend yield for the trailing twelve months is around 4.38%, less than BUXX's 4.73% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
BUXX Strive Enhanced Income Short Maturity ETF	4.73%	4.95%	5.55%	1.92%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
RAVI FlexShares Ultra-Short Income ETF	4.38%	4.59%	5.34%	4.55%	1.70%	0.90%	1.29%	2.53%	2.22%	1.28%	0.90%

Frequently Asked Questions

Can I hold both RAVI and BUXX in my portfolio?

RAVI and BUXX have a correlation of 0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RAVI or BUXX?

BUXX has higher volatility (0.30%) compared to RAVI (0.14%). In terms of maximum drawdown, RAVI dropped -3.72% vs BUXX's -0.60%.

Which ETF is better, RAVI or BUXX?

On 1-year performance, RAVI leads with 4.54% vs 4.35% for BUXX. On fees, RAVI is cheaper at 0.25% per year. On volatility, RAVI has been the lower-risk option at 0.14%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, RAVI or BUXX?

Over the 1-year period, RAVI has performed better with a 4.54% return vs 4.35%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, RAVI or BUXX?

RAVI is cheaper with a 0.25% expense ratio, compared with 0.26% for BUXX.

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

BUXX has the higher dividend yield at 4.73%, compared with 4.38% for RAVI.

What is the main difference between RAVI and BUXX?

They also come from different issuers: FlexShares and Strive. Their fees differ too: 0.25% for RAVI and 0.26% for BUXX.

Which has better risk-adjusted returns?

RAVI currently has the higher Sharpe Ratio (11.36 vs 3.60), 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.