IWCvsRESMETF Comparison
iShares Micro-Cap ETF (IWC) belongs to the US Small Cap segment. Columbia Research Enhanced Small Cap ETF (RESM) is part of the US Multi-Factor segment. IWC's top 3 sector exposures are Health Care, Information Technology and Financials. In contrast, RESM's top sector exposures are Industrials, Information Technology and Financials. IWC is more expensive with a Total Expense Ratio (TER) of 0.6%, versus 0.32% for RESM. IWC is up 21.44% year-to-date (YTD) with +$121M in YTD flows. RESM performs worse with 19.1% YTD performance, and -$2M in YTD flows. Run a side-by-side ETF comparison of IWC and RESM below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
IWC vs RESM performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWC RESM | +5.29%+5.80% | +17.95%+17.08% | +21.44%+19.10% | +55.28%n/a | +77.15%n/a | +31.64%n/a |
| Flows | IWC RESM | +$10M- | -$6M+$1K | +$121M-$2M | +$191M- | -$22M- | -$92M- |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWC RESM | +27.95%+19.11% | +24.50%n/a | +24.46%n/a | +24.62%n/a |
| Max drawdown | IWC RESM | -6.12%-4.10% | -12.28%n/a | -29.17%n/a | -40.55%n/a |
| Max drawdown duration | IWC RESM | 13d19d | 82dn/a | 233dn/a | 1409dn/a |
IWC | RESM | |
Last sale 6/15/2026 at 1:30 PM | $191.02 | $23.68 |
| Previous close 06/15/2026 | $189.28 | $23.59 |
| Consolidated volume 06/15/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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IWC | RESM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
IWC | RESM | |
|---|---|---|
| Last price | $191.02 | $23.68 |
| 1D performance | +0.92% | +0.38% |
| AuM | $1.45 B | $3.56 M |
| E/R | 0.6% | 0.32% |
IWC | RESM | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | iShares | Columbia Threadneedle Investments |
| Benchmark | Russell Microcap Index | - |
| N° of holdings | 953 | 848 |
| Asset class | Equities | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | August 12, 2005 | December 11, 2025 |
| ESG | No | No |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
