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BBSC vs. IWMW
Performance
Return for Risk
Drawdowns
Volatility
Dividends

BBSC vs. IWMW

Last updated Aug 6, 2026
Documentation

BBSC (JPMorgan BetaBuilders U.S. Small Cap Equity ETF) and IWMW (iShares Russell 2000 BuyWrite ETF) are both exchange-traded funds - BBSC is a Small Cap Blend Equities fund tracking the Morningstar US Small Cap Target Market Exposure Extended Index, while IWMW is a Derivative Income fund tracking the Cboe FTSE Russell IWM 2% OTM BuyWrite Index. Both are passively managed. Over the past year, BBSC returned 36.97% vs 26.97% for IWMW. Their correlation of 0.91 means they have usually moved in the same direction. BBSC charges 0.09%/yr vs 0.39%/yr for IWMW.

Performance

BBSC vs. IWMW - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in JPMorgan BetaBuilders U.S. Small Cap Equity ETF (BBSC) and iShares Russell 2000 BuyWrite ETF (IWMW). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, BBSC achieves a 24.42% return, which is significantly higher than IWMW's 16.14% return.

BBSC

1D
-0.51%
1M
0.95%
6M
17.86%
YTD
24.42%
1Y
36.97%
3Y*
17.19%
5Y*
8.40%
10Y*
—
ALL TIME*
12.10%

IWMW

1D
0.13%
1M
2.26%
6M
14.29%
YTD
16.14%
1Y
26.97%
3Y*
—
5Y*
—
10Y*
—
ALL TIME*
12.51%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

PositionAvg. Volume Value (2W)Avg. Volume Value (1M)Avg. Volume Value (3M)

BBSC

JPMorgan BetaBuilders U.S. Small Cap Equity ETF
$877.52K$495.38K$954.11K

IWMW

iShares Russell 2000 BuyWrite ETF
$647.07K$528.72K$531.31K

BBSC vs. IWMW - Yearly Performance Comparison

2026 (YTD)20252024
BBSC
JPMorgan BetaBuilders U.S. Small Cap Equity ETF		24.42%10.38%15.36%
IWMW
iShares Russell 2000 BuyWrite ETF		16.14%7.82%5.85%

Correlation

The correlation between BBSC and IWMW is 0.91, meaning they have usually moved in the same direction, including during past declines.

Correlation
Correlation (1Y)
Focuses on recent behavior, but can change the most.

0.91

Correlation (All Time)
Calculated using the full available price history since Mar 15, 2024

0.91

The correlation between BBSC and IWMW has been stable across timeframes, ranging from 0.91 to 0.91 - a consistent structural relationship.

BBSC vs. IWMW - Sectors Allocation Comparison

Sectors
BBSC
IWMW

Technology

18.9%
14.5%

Healthcare

16.8%
20.3%

Financial Services

15.7%
17.6%

Industrials

14.4%
14.1%

Consumer Cyclical

11.6%
9.2%

Real Estate

7.5%
6.7%

Energy

4.5%
5.5%

Basic Materials

4.0%
4.4%

Consumer Defensive

2.9%
2.6%

Communication Services

2.4%
2.2%

Utilities

1.5%
2.8%

Technology

BBSC
18.9%
IWMW
14.5%

Healthcare

BBSC
16.8%
IWMW
20.3%

Financial Services

BBSC
15.7%
IWMW
17.6%

Industrials

BBSC
14.4%
IWMW
14.1%

Consumer Cyclical

BBSC
11.6%
IWMW
9.2%

Real Estate

BBSC
7.5%
IWMW
6.7%

Energy

BBSC
4.5%
IWMW
5.5%

Basic Materials

BBSC
4.0%
IWMW
4.4%

Consumer Defensive

BBSC
2.9%
IWMW
2.6%

Communication Services

BBSC
2.4%
IWMW
2.2%

Utilities

BBSC
1.5%
IWMW
2.8%

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

JPMorgan BetaBuilders U.S. Small Cap Equity ETF

iShares Russell 2000 BuyWrite ETF

Often compared with BBSC:
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Often compared with IWMW:
IWMW vs. IWMIWMW vs. IVVWIWMW vs. SCHDIWMW vs. QQQIIWMW vs. SPYIWMW vs. IWMLIWMW vs. IWMI

Return for Risk

BBSC vs. IWMW — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.
BBSC
BBSC Risk / Return Rank: 7979
Overall Rank
BBSC Sharpe Ratio Rank: 7777
Sharpe Ratio Rank
BBSC Sortino Ratio Rank: 7777
Sortino Ratio Rank
BBSC Omega Ratio Rank: 7070
Omega Ratio Rank
BBSC Calmar Ratio Rank: 8888
Calmar Ratio Rank
BBSC Martin Ratio Rank: 8383
Martin Ratio Rank
IWMW
IWMW Risk / Return Rank: 8585
Overall Rank
IWMW Sharpe Ratio Rank: 8484
Sharpe Ratio Rank
IWMW Sortino Ratio Rank: 8181
Sortino Ratio Rank
IWMW Omega Ratio Rank: 8888
Omega Ratio Rank
IWMW Calmar Ratio Rank: 8888
Calmar Ratio Rank
IWMW Martin Ratio Rank: 8585
Martin Ratio Rank
The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

BBSC vs. IWMW - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for JPMorgan BetaBuilders U.S. Small Cap Equity ETF (BBSC) 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.

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.

BBSCIWMWDifference
Sharpe ratioReturn per unit of total volatility
1.97
2.18

-0.21

Sortino ratioReturn per unit of downside risk
2.81
2.95

-0.14

Omega ratioGain probability vs. loss probability

1.33

1.43

-0.09

Calmar ratioReturn relative to maximum drawdown

3.89

3.90

-0.01

Martin ratioReturn relative to average drawdown

12.77

13.50

-0.73

BBSC vs. IWMW - Sharpe Ratio Comparison

The current BBSC Sharpe Ratio is 1.97, which is comparable to the IWMW Sharpe Ratio of 2.18. The chart below compares the historical Sharpe Ratios of BBSC and IWMW, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

BBSC vs. IWMW - Drawdown Comparison

The maximum BBSC drawdown since its inception was -30.96%, which is greater than IWMW's maximum drawdown of -21.82%. Use the drawdown chart below to compare losses from any high point for BBSC and IWMW.

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Drawdown Indicators

BBSCIWMWDifference

Max Drawdown

Largest peak-to-trough decline

-30.96%

-21.82%

-9.14%

Max Drawdown (1Y)

Largest decline over 1 year

-9.54%

-6.94%

-2.60%

Max Drawdown (3Y)

Largest decline over 3 years

-29.32%

—

—

Max Drawdown (5Y)

Largest decline over 5 years

-30.96%

—

—

Current Drawdown

Current decline from peak

-0.51%

0.00%

-0.51%

Average Drawdown

Average peak-to-trough decline

-11.18%

-3.59%

-7.59%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.90%

2.00%

+0.90%

Volatility

BBSC vs. IWMW - Volatility Comparison

JPMorgan BetaBuilders U.S. Small Cap Equity ETF (BBSC) has a higher volatility of 4.46% compared to iShares Russell 2000 BuyWrite ETF (IWMW) at 3.14%. This indicates that BBSC's price experiences larger fluctuations and is considered to be riskier than IWMW based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

BBSCIWMWDifference

Volatility (1M)

Calculated over the trailing 1-month period

4.46%

3.14%

+1.32%

Volatility (6M)

Calculated over the trailing 6-month period

13.31%

9.40%

+3.91%

Volatility (1Y)

Calculated over the trailing 1-year period

18.90%

12.46%

+6.44%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

22.88%

15.79%

+7.09%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

22.69%

15.79%

+6.90%

BBSC vs. IWMW - Expense Ratio Comparison

BBSC has a 0.09% expense ratio, which is lower than IWMW's 0.39% expense ratio.

Dividends

BBSC vs. IWMW - Dividend Comparison

BBSC's dividend yield for the trailing twelve months is around 0.98%, less than IWMW's 20.22% yield.

PositionTTM202520242023202220212020
BBSC
JPMorgan BetaBuilders U.S. Small Cap Equity ETF		0.98%1.13%1.29%1.58%1.37%1.06%0.18%
IWMW
iShares Russell 2000 BuyWrite ETF		20.22%20.98%17.73%0.00%0.00%0.00%0.00%

Frequently Asked Questions

With a correlation of 0.91, BBSC and IWMW move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

BBSC has higher volatility (4.46%) compared to IWMW (3.14%). In terms of maximum drawdown, BBSC dropped -30.96% vs IWMW's -21.82%.

On 1-year performance, BBSC leads with 36.97% vs 26.97% for IWMW. On fees, BBSC is cheaper at 0.09% per year. On volatility, IWMW has been the lower-risk option at 3.14%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 1-year period, BBSC has performed better with a 36.97% return vs 26.97%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

BBSC is cheaper with a 0.09% expense ratio, compared with 0.39% for IWMW.

IWMW has the higher dividend yield at 20.22%, compared with 0.98% for BBSC.

BBSC is categorized as Small Cap Blend Equities, while IWMW is Derivative Income. BBSC tracks Morningstar US Small Cap Target Market Exposure Extended Index, while IWMW tracks Cboe FTSE Russell IWM 2% OTM BuyWrite Index. They also come from different issuers: JPMorgan and iShares. Their fees differ too: 0.09% for BBSC and 0.39% for IWMW.

IWMW currently has the higher Sharpe Ratio (2.18 vs 1.97), 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.

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