BBSC vs. IWC

Last updated Jun 5, 2026

BBSC (JPMorgan BetaBuilders U.S. Small Cap Equity ETF) and IWC (iShares Micro-Cap ETF) are both Small Cap Blend Equities funds - BBSC tracks the Morningstar US Small Cap Target Market Exposure Extended Index while IWC tracks the Russell Microcap Index. Both are passively managed. Over the past 5 years, BBSC returned 6.97%/yr vs 5.88%/yr for IWC. With a 0.95 correlation, they move nearly in lockstep. BBSC charges 0.09%/yr vs 0.60%/yr for IWC.

Performance

BBSC vs. IWC - 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 Micro-Cap ETF (IWC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BBSC achieves a 17.51% return, which is significantly lower than IWC's 21.41% return.

BBSC

• 1D: 1.52%
• 1M: 2.61%
• YTD: 17.51%
• 6M: 15.05%
• 1Y: 38.14%
• 3Y*: 18.46%
• 5Y*: 6.97%
• 10Y*: —

IWC

• 1D: 2.06%
• 1M: 2.80%
• YTD: 21.41%
• 6M: 19.33%
• 1Y: 58.00%
• 3Y*: 22.83%
• 5Y*: 5.88%
• 10Y*: 11.44%

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

BBSC vs. IWC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
BBSC JPMorgan BetaBuilders U.S. Small Cap Equity ETF	17.51%	10.38%	12.31%	20.07%	-19.75%	15.44%	11.94%
IWC iShares Micro-Cap ETF	21.41%	22.45%	13.63%	8.99%	-21.93%	18.67%	11.96%

Correlation

The correlation between BBSC and IWC is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.92
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (All Time) Calculated using the full available price history since Nov 18, 2020	0.95

The correlation between BBSC and IWC has been stable across timeframes, ranging from 0.92 to 0.95 - a consistent structural relationship.

BBSC vs. IWC - Sectors Allocation Comparison

Sectors	BBSC	IWC
Technology	18.5%	18.4%
Financial Services	16.9%	18.1%
Healthcare	15.7%	28.1%
Industrials	14.9%	13.3%
Consumer Cyclical	9.0%	5.3%
Real Estate	7.7%	3.5%
Energy	6.4%	4.7%
Basic Materials	4.1%	4.4%
Consumer Defensive	3.2%	1.9%
Communication Services	2.4%	1.8%
Utilities	1.2%	0.6%

Return for Risk

BBSC vs. IWC — Risk / Return Rank

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

BBSC

BBSC Risk / Return Rank: 65
BBSC Sharpe Ratio Rank: 61
BBSC Sortino Ratio Rank: 61
BBSC Omega Ratio Rank: 55
BBSC Calmar Ratio Rank: 79
BBSC Martin Ratio Rank: 71

IWC

IWC Risk / Return Rank: 76
IWC Sharpe Ratio Rank: 77
IWC Sortino Ratio Rank: 72
IWC Omega Ratio Rank: 64
IWC Calmar Ratio Rank: 86
IWC Martin Ratio Rank: 80

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.

BBSC vs. IWC - 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 Micro-Cap ETF (IWC). 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.

	BBSC	IWC	Difference
Sharpe ratio: Return per unit of total volatility	2.01	2.47	-0.46
Sortino ratio: Return per unit of downside risk	2.83	3.22	-0.39
Omega ratio: Gain probability vs. loss probability	1.33	1.38	-0.05
Calmar ratio: Return relative to maximum drawdown	4.02	4.69	-0.67
Martin ratio: Return relative to average drawdown	13.10	15.50	-2.41
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BBSC vs. IWC - Sharpe Ratio Comparison

The current BBSC Sharpe Ratio is 2.01, which is comparable to the IWC Sharpe Ratio of 2.47. The chart below compares the historical Sharpe Ratios of BBSC and IWC, 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

	BBSC	IWC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.01	2.47	-0.46
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.31	0.24	+0.06
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.47	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.50	0.32	+0.18

Drawdowns

BBSC vs. IWC - Drawdown Comparison

The maximum BBSC drawdown since its inception was -30.96%, smaller than the maximum IWC drawdown of -64.61%. Use the drawdown chart below to compare losses from any high point for BBSC and IWC.

Drawdown Indicators

	BBSC	IWC	Difference
Max Drawdown Largest peak-to-trough decline	-30.96%	-64.61%	+33.65%
Max Drawdown (1Y) Largest decline over 1 year	-9.54%	-12.43%	+2.89%
Max Drawdown (3Y) Largest decline over 3 years	-29.32%	-29.46%	+0.14%
Max Drawdown (5Y) Largest decline over 5 years	-30.96%	-40.68%	+9.72%
Max Drawdown (10Y) Largest decline over 10 years	—	-47.21%	—
Current Drawdown Current decline from peak	0.00%	-0.91%	+0.91%
Average Drawdown Average peak-to-trough decline	-11.48%	-15.27%	+3.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.92%	3.75%	-0.83%

Volatility

BBSC vs. IWC - Volatility Comparison

The current volatility for JPMorgan BetaBuilders U.S. Small Cap Equity ETF (BBSC) is 4.88%, while iShares Micro-Cap ETF (IWC) has a volatility of 7.26%. This indicates that BBSC experiences smaller price fluctuations and is considered to be less risky than IWC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BBSC	IWC	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.88%	7.26%	-2.38%
Volatility (6M) Calculated over the trailing 6-month period	13.05%	17.35%	-4.30%
Volatility (1Y) Calculated over the trailing 1-year period	19.11%	23.63%	-4.52%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.94%	24.44%	-1.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.86%	24.42%	-1.56%

BBSC vs. IWC - Expense Ratio Comparison

BBSC has a 0.09% expense ratio, which is lower than IWC's 0.60% expense ratio.

Dividends

BBSC vs. IWC - Dividend Comparison

BBSC's dividend yield for the trailing twelve months is around 1.02%, more than IWC's 0.89% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BBSC JPMorgan BetaBuilders U.S. Small Cap Equity ETF	1.02%	1.13%	1.29%	1.58%	1.37%	1.06%	0.18%	0.00%	0.00%	0.00%	0.00%	0.00%
IWC iShares Micro-Cap ETF	0.89%	1.10%	1.06%	1.17%	1.18%	0.78%	0.98%	1.19%	1.01%	1.09%	1.16%	1.49%

Frequently Asked Questions

Can I hold both BBSC and IWC in my portfolio?

With a correlation of 0.92, BBSC and IWC 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.

Which is riskier, BBSC or IWC?

IWC has higher volatility (7.26%) compared to BBSC (4.88%). In terms of maximum drawdown, BBSC dropped -30.96% vs IWC's -64.61%.

Which ETF is better, BBSC or IWC?

On 5-year performance, BBSC leads with 6.97% vs 5.88% for IWC. On fees, BBSC is cheaper at 0.09% per year. On volatility, BBSC has been the lower-risk option at 4.88%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BBSC or IWC?

Over the 5-year period, BBSC has performed better with a 6.97% return vs 5.88%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BBSC or IWC?

BBSC is cheaper with a 0.09% expense ratio, compared with 0.60% for IWC.

Which ETF pays a higher dividend yield, BBSC or IWC?

BBSC has the higher dividend yield at 1.02%, compared with 0.89% for IWC.

What is the main difference between BBSC and IWC?

BBSC tracks Morningstar US Small Cap Target Market Exposure Extended Index, while IWC tracks Russell Microcap Index. They also come from different issuers: JPMorgan and iShares. Their fees differ too: 0.09% for BBSC and 0.60% for IWC.

Which has better risk-adjusted returns?

IWC currently has the higher Sharpe Ratio (2.47 vs 2.01), 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.