IWCvsBBSCETF Comparison
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iShares Micro-Cap ETF (IWC) and JPMorgan BetaBuilders U.S. Small Cap Equity ETF (BBSC) belong to the same industry segment: US Small Cap. IWC's top 3 sector exposures are Health Care, Financials and Information Technology. In contrast, BBSC's top sector exposures are Information Technology, Financials and Industrials. IWC is more expensive with a Total Expense Ratio (TER) of 0.6%, versus 0.09% for BBSC. IWC is up 14.21% year-to-date (YTD) with +$130M in YTD flows. BBSC performs worse with 11.87% YTD performance, and +$63M in YTD flows. Run a side-by-side ETF comparison of IWC and BBSC below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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IWC vs BBSC performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 04/24/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWC BBSC | +11.89%+10.54% | +5.92%+5.35% | +14.21%+11.87% | +65.21%+43.06% | +79.54%+61.46% | +27.94%+32.67% |
| Flows | IWC BBSC | +$19M-$11M | +$30M+$63M | +$130M+$63M | +$147M+$41M | -$43M-$263M | -$148M+$114M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWC BBSC | +27.90%+20.27% | +23.51%+19.33% | +24.14%+22.03% | +24.46%+23.06% |
| Max drawdown | IWC BBSC | -11.16%-9.15% | -12.28%-9.66% | -29.17%-29.10% | -40.56%-30.97% |
| Max drawdown duration | IWC BBSC | 76d60d | 82d81d | 233d296d | 1562d1072d |
Trading data
IWC | BBSC | |
Last sale 4/27/2026 at 2:09 PM | $180.72 | |
| Previous close 04/24/2026 | $179.69 | |
| Consolidated volume 04/24/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of March 31, 2026
1-year trailing difference
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IWC | BBSC | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 4/27/2026 at 2:09 PM
Live
Closed
IWC | BBSC | |
|---|---|---|
| Last price | $180.72 | – |
| 1D performance | +0.57% | – |
| AuM | $1.38 B | $727.12 M |
| E/R | 0.6% | 0.09% |
Characteristics
IWC | BBSC | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | J.P. Morgan Asset Management |
| Benchmark | Russell Microcap Index | Morningstar US Small Cap Target Market Exposure Extended Index |
| N° of holdings | 964 | 633 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | August 12, 2005 | November 16, 2020 |
| ESG | No | No |
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Exposure
Countries
IWC
USA
93.58%
Other
6.42%
BBSC
USA
95.41%
Other
4.59%
Sectors
IWC
Health Care
20.7%
Financials
17.02%
Information Techn.
15.6%
Industrials
10.16%
Other
36.52%
BBSC
Information Techn.
15.73%
Financials
14.67%
Industrials
14.04%
Health Care
13.73%
Consumer Discreti.
9.35%
Other
32.49%
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Diversification
IWC
Total weight of top 15 holdings out of 15
13.84%
BBSC
Total weight of top 15 holdings out of 15
6.74%
Top 15 holdings
Data as of March 31, 2026
IWC
US74006W2070
1.73%
APPLIED BLOCKCHAIN
1.17%
APPLIED OPTOEL/D
1.16%
COGENT BIOSCIENCES
1.15%
TERNS PHARMACEUTICALS
1.05%
TERAWULF INC
0.93%
ENERGY FUELS
0.89%
CIPHER MINING INC
0.87%
CELCUITY INC
0.83%
COMMSCOPE HOLDING
0.83%
TUTOR PERINI
0.71%
ERASCA
0.64%
COMPOSECURE INC
0.63%
US2528281080
0.63%
AXT
0.62%
BBSC
TTM TECHNOLOGIES
0.54%
PLANET LABS PBC
0.50%
MOOG
0.49%
CARETRUST REIT
0.48%
US3981823038
0.46%
PRIMORIS SERVICES
0.46%
FORMFACTOR
0.46%
ARGAN
0.44%
VIAVI SOLUTIONS INC
0.43%
SITIME CORP
0.42%
SM ENERGY
0.42%
ARROWHEAD PHARMACEUTICALS INC
0.42%
ESCO TECHNOLOGIES
0.41%
SEMTECH
0.40%
US74006W2070
0.39%
Frequently asked questions about IWC and BBSC
How have the IWC and BBSC ETFs performed in 2026?
As of April 24, 2026, IWC is up 14.21% year-to-date (YTD), while BBSC has returned 11.87%. That puts IWC better performer ahead so far this year.
Which ETF is attracting more investor money: IWC or BBSC?
Year-to-date, the IWC ETF saw +$130M in flows, compared to +$63M for BBSC.
Which ETF is more volatile: IWC or BBSC?
Over the past year, IWC had a volatility of 23.51%, while BBSC experienced 19.33%.
Which ETF is bigger: IWC or BBSC?
As of April 24, 2026, IWC holds $1.38 B in assets under management (AUM), while BBSC manages $727.12 M.
What sectors do the IWC and BBSC ETFs invest in?
IWC leans toward sectors like Health Care, Financials and Information Technology. Meanwhile, BBSC focuses on Information Technology, Financials and Industrials.
What are the top holdings of the IWC ETF and BBSC ETF?
IWC top holdings include US74006W2070, APPLIED BLOCKCHAIN and APPLIED OPTOEL/D. BBSC holds in its top three: TTM TECHNOLOGIES, PLANET LABS PBC and MOOG.
Which ETF is more diversified: IWC or BBSC?
IWC holds 1296 securities with 13.84% of its assets in the top 15. BBSC has 732 securities and a top 15 weight of 6.74%.
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