RBLY vs. BAMU

Last updated Jun 5, 2026

RBLY (YieldMax RBLX Option Income Strategy ETF) and BAMU (Brookstone Ultra-Short Bond ETF) are both exchange-traded funds - RBLY is a Derivative Income fund actively managed by YieldMax, while BAMU is a Ultrashort Bond fund actively managed by Brookstone. Both are actively managed. At a correlation of -0.14, they often move in opposite directions. RBLY charges 0.99%/yr vs 1.09%/yr for BAMU.

Performance

RBLY vs. BAMU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in YieldMax RBLX Option Income Strategy ETF (RBLY) and Brookstone Ultra-Short Bond ETF (BAMU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RBLY achieves a -45.86% return, which is significantly lower than BAMU's 1.08% return.

RBLY

• 1D: -0.55%
• 1M: -4.44%
• YTD: -45.86%
• 6M: -52.54%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

BAMU

• 1D: 0.02%
• 1M: 0.22%
• YTD: 1.08%
• 6M: 1.31%
• 1Y: 2.95%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

RBLY vs. BAMU - Yearly Performance Comparison

	2026 (YTD)	2025
RBLY YieldMax RBLX Option Income Strategy ETF	-45.86%	-24.82%
BAMU Brookstone Ultra-Short Bond ETF	1.08%	1.37%

Correlation

The correlation between RBLY and BAMU is -0.14, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (All Time) Calculated using the full available price history since Jul 30, 2025	-0.14

Return for Risk

RBLY vs. BAMU — Risk / Return Rank

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

BAMU

BAMU Risk / Return Rank: 98
BAMU Sharpe Ratio Rank: 98
BAMU Sortino Ratio Rank: 98
BAMU Omega Ratio Rank: 98
BAMU Calmar Ratio Rank: 99
BAMU 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.

RBLY vs. BAMU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for YieldMax RBLX Option Income Strategy ETF (RBLY) and Brookstone Ultra-Short Bond ETF (BAMU). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	RBLY	BAMU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	5.01	—
Sharpe Ratio (All Time) Calculated using the full available price history	-1.25	4.15	-5.40

Drawdowns

RBLY vs. BAMU - Drawdown Comparison

The maximum RBLY drawdown since its inception was -65.81%, which is greater than BAMU's maximum drawdown of -0.36%. Use the drawdown chart below to compare losses from any high point for RBLY and BAMU.

Drawdown Indicators

	RBLY	BAMU	Difference
Max Drawdown Largest peak-to-trough decline	-65.81%	-0.36%	-65.45%
Max Drawdown (1Y) Largest decline over 1 year	—	-0.12%	—
Current Drawdown Current decline from peak	-65.61%	0.00%	-65.61%
Average Drawdown Average peak-to-trough decline	-33.20%	-0.02%	-33.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.03%	—

Volatility

Volatility by Period

	RBLY	BAMU	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.07%	—
Volatility (6M) Calculated over the trailing 6-month period	—	0.43%	—
Volatility (1Y) Calculated over the trailing 1-year period	52.29%	0.59%	+51.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	52.29%	0.87%	+51.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	52.29%	0.87%	+51.42%

RBLY vs. BAMU - Expense Ratio Comparison

RBLY has a 0.99% expense ratio, which is lower than BAMU's 1.09% expense ratio.

Dividends

RBLY vs. BAMU - Dividend Comparison

RBLY's dividend yield for the trailing twelve months is around 131.94%, more than BAMU's 3.06% yield.

Position	TTM	2025	2024	2023
BAMU Brookstone Ultra-Short Bond ETF	3.06%	3.20%	3.97%	0.84%
RBLY YieldMax RBLX Option Income Strategy ETF	131.94%	36.84%	0.00%	0.00%

Frequently Asked Questions

Can I hold both RBLY and BAMU in my portfolio?

RBLY and BAMU have a correlation of -0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, RBLY or BAMU?

On fees, RBLY is cheaper at 0.99% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, RBLY or BAMU?

RBLY is cheaper with a 0.99% expense ratio, compared with 1.09% for BAMU.

Which ETF pays a higher dividend yield, RBLY or BAMU?

RBLY has the higher dividend yield at 131.94%, compared with 3.06% for BAMU.

What is the main difference between RBLY and BAMU?

RBLY is categorized as Derivative Income, while BAMU is Ultrashort Bond. They also come from different issuers: YieldMax and Brookstone. Their fees differ too: 0.99% for RBLY and 1.09% for BAMU.