CWII vs. IWMW

Last updated Jun 4, 2026

CWII (REX CRWV Growth & Income ETF) and IWMW (iShares Russell 2000 BuyWrite ETF) are both Derivative Income funds. CWII is actively managed, while IWMW is passively managed. At a 0.39 correlation, their price movements are largely independent. CWII charges 1.03%/yr vs 0.39%/yr for IWMW.

Performance

CWII vs. IWMW - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in REX CRWV Growth & Income ETF (CWII) and iShares Russell 2000 BuyWrite ETF (IWMW). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CWII achieves a 37.23% return, which is significantly higher than IWMW's 8.49% return.

CWII

• 1D: -5.26%
• 1M: -7.64%
• YTD: 37.23%
• 6M: 17.21%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

IWMW

• 1D: -0.34%
• 1M: 3.04%
• YTD: 8.49%
• 6M: 8.94%
• 1Y: 24.62%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CWII vs. IWMW - Yearly Performance Comparison

	2026 (YTD)	2025
CWII REX CRWV Growth & Income ETF	37.23%	-42.16%
IWMW iShares Russell 2000 BuyWrite ETF	8.49%	0.09%

Correlation

The correlation between CWII and IWMW is 0.39, 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 Nov 5, 2025	0.39

Return for Risk

CWII vs. IWMW — Risk / Return Rank

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

IWMW

IWMW Risk / Return Rank: 64
IWMW Sharpe Ratio Rank: 59
IWMW Sortino Ratio Rank: 57
IWMW Omega Ratio Rank: 66
IWMW Calmar Ratio Rank: 71
IWMW Martin Ratio Rank: 67

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.

CWII vs. IWMW - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for REX CRWV Growth & Income ETF (CWII) and iShares Russell 2000 BuyWrite ETF (IWMW). 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

	CWII	IWMW	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	2.01	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.38	0.64	-1.02

Drawdowns

CWII vs. IWMW - Drawdown Comparison

The maximum CWII drawdown since its inception was -48.46%, which is greater than IWMW's maximum drawdown of -21.82%. Use the drawdown chart below to compare losses from any high point for CWII and IWMW.

Drawdown Indicators

	CWII	IWMW	Difference
Max Drawdown Largest peak-to-trough decline	-48.46%	-21.82%	-26.64%
Max Drawdown (1Y) Largest decline over 1 year	—	-6.94%	—
Current Drawdown Current decline from peak	-20.63%	-0.34%	-20.29%
Average Drawdown Average peak-to-trough decline	-30.55%	-3.85%	-26.70%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	2.00%	—

Volatility

Volatility by Period

	CWII	IWMW	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	3.03%	—
Volatility (6M) Calculated over the trailing 6-month period	—	8.75%	—
Volatility (1Y) Calculated over the trailing 1-year period	88.61%	12.32%	+76.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	88.61%	16.12%	+72.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	88.61%	16.12%	+72.49%

CWII vs. IWMW - Expense Ratio Comparison

CWII has a 1.03% expense ratio, which is higher than IWMW's 0.39% expense ratio.

Dividends

CWII vs. IWMW - Dividend Comparison

CWII's dividend yield for the trailing twelve months is around 20.73%, less than IWMW's 22.40% yield.

Position	TTM	2025	2024
CWII REX CRWV Growth & Income ETF	20.73%	6.09%	0.00%
IWMW iShares Russell 2000 BuyWrite ETF	22.40%	20.98%	17.73%

Frequently Asked Questions

Can I hold both CWII and IWMW in my portfolio?

CWII and IWMW have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, CWII or IWMW?

On fees, IWMW is cheaper at 0.39% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, CWII or IWMW?

IWMW is cheaper with a 0.39% expense ratio, compared with 1.03% for CWII.

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

IWMW has the higher dividend yield at 22.40%, compared with 20.73% for CWII.

What is the main difference between CWII and IWMW?

They also come from different issuers: REX Shares and iShares. Their fees differ too: 1.03% for CWII and 0.39% for IWMW.