BIOY vs. CWII

Last updated Jul 21, 2026

BIOY (GraniteShares YieldBOOST Biotech ETF) and CWII (REX CRWV Growth & Income ETF) are both Derivative Income funds. Both are actively managed. At a 0.17 correlation, their price movements are largely independent. BIOY charges 1.07%/yr vs 1.03%/yr for CWII.

Performance

BIOY vs. CWII - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in GraniteShares YieldBOOST Biotech ETF (BIOY) and REX CRWV Growth & Income ETF (CWII). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

BIOY

• 1D: -3.35%
• 1M: -2.48%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

CWII

• 1D: —
• 1M: —
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

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

BIOY vs. CWII - Yearly Performance Comparison

	2026 (YTD)
BIOY GraniteShares YieldBOOST Biotech ETF	-3.36%
CWII REX CRWV Growth & Income ETF	8,850.89%

Correlation

The correlation between BIOY and CWII is 0.17, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 5, 2026	0.17

Return for Risk

BIOY vs. CWII - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for GraniteShares YieldBOOST Biotech ETF (BIOY) and REX CRWV Growth & Income ETF (CWII). 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.

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

Drawdowns

Drawdown Indicators

	BIOY	CWII	Difference
Max Drawdown Largest peak-to-trough decline	-6.64%	—	—
Current Drawdown Current decline from peak	-6.64%	—	—
Average Drawdown Average peak-to-trough decline	-2.16%	—	—

Volatility

Volatility by Period

	BIOY	CWII	Difference
Volatility (1Y) Calculated over the trailing 1-year period	18.55%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.55%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.55%	—	—

BIOY vs. CWII - Expense Ratio Comparison

BIOY has a 1.07% expense ratio, which is higher than CWII's 1.03% expense ratio.

Dividends

BIOY vs. CWII - Dividend Comparison

BIOY's dividend yield for the trailing twelve months is around 13.82%, while CWII has not paid dividends to shareholders.

Position	TTM	2025
BIOY GraniteShares YieldBOOST Biotech ETF	13.82%	0.00%
CWII REX CRWV Growth & Income ETF	123.26%	6.09%

Frequently Asked Questions

Can I hold both BIOY and CWII in my portfolio?

BIOY and CWII have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, BIOY or CWII?

On fees, CWII is cheaper at 1.03% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, BIOY or CWII?

CWII is cheaper with a 1.03% expense ratio, compared with 1.07% for BIOY.

Which ETF pays a higher dividend yield, BIOY or CWII?

CWII has the higher dividend yield at 123.26%, compared with 13.82% for BIOY.

What is the main difference between BIOY and CWII?

They also come from different issuers: GraniteShares and REX Shares. Their fees differ too: 1.07% for BIOY and 1.03% for CWII.