VB vs IWM Stock Comparison: AI Score, Valuation, Performance and Upside
VB and IWM both provide U.S. small-cap equity exposure, with IWM being the standard benchmark vehicle and VB offering a significantly cheaper alternative with a smoother index reconstitution process. IWM is preferred for active trading, options strategies, and institutional benchmark alignment; VB is preferred for cost-conscious long-term investors who want small-cap exposure without paying IWM's premium.
VB vs IWM is a cost-versus-benchmark-liquidity trade-off for small-cap exposure — VB saves nearly 4x in annual expenses with a more efficient index methodology, while IWM provides the deepest liquidity and options market depth for the standard Russell 2000 small-cap benchmark.
VB holds the edge across 4 of 5 key metrics in this comparison. IWM has delivered stronger 1-year price return (+42.46% vs +29.96% for VB).
- →prefer the lowest cost small-cap ETF (0.05%) for long-term passive small-cap equity allocation
- →value the CRSP methodology's smoother reconstitution process and lower portfolio turnover
- →want small-cap core exposure without the small-cap ETF premium for liquidity or benchmark alignment
- →are comfortable with a less recognized index benchmark in exchange for dramatically lower costs
- →prefer the most liquid small-cap ETF with the deepest options market for tactical allocation and hedging
- →value alignment with the Russell 2000 — the globally recognized standard small-cap benchmark
- →want to run covered calls, protective puts, or other options strategies on small-cap exposure
- →are comfortable paying 0.19% expense ratio for maximum execution flexibility and benchmark tracking
| Metric | VB | IWM |
|---|---|---|
| ETF score | 94.0 | 87.0 |
| Latest close | $296.51 | $295.59 |
| 1M return | +6.28% | +8.53% |
| 6M return | +15.57% | +20.05% |
| 1Y return | +29.96% | +42.46% |
How much would $10,000 be worth today if invested at the start of each period, with all dividends reinvested?
| Period | VB | IWM |
|---|---|---|
| 1Y ago | $13.18K (+31.8%) started 2025-06-18 | $14.39K (+43.9%) started 2025-06-18 |
| 5Y ago | $15.79K (+57.9%) started 2021-06-18 | $15.1K (+51.0%) started 2021-06-18 |
| 10Y ago | $34.63K (+246.3%) started 2016-06-20 | $33.61K (+236.1%) started 2016-06-20 |
Hypothetical — past performance does not guarantee future results.
| Metric | VB | IWM |
|---|---|---|
| Expense ratio | 0.03% | 0.19% |
| Total assets (AUM) | $182.65B | $80.93B |
| Dividend yield | 1.19% | 0.87% |
| Trailing P/E | 21.68 | 19.76 |
| Beta | 1.06 | 1.13 |
| 52-week change | 29.96% | 42.46% |
| Metric | VB | IWM |
|---|---|---|
| 1Y return | +29.96% | +42.46% |
| 6M return | +15.57% | +20.05% |
| 1M return | +6.28% | +8.53% |
| 1Y Sharpe ratio | 1.40 | 1.67 |
| Beta | 1.06 | 1.13 |
| Dividend yield | 1.19% | 0.87% |
| 5Y CAGR | +7.90% | +7.21% |
Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.
| Period | Metric | VB | IWM |
|---|---|---|---|
| 1Y | Growth | +29.96% | +42.46% |
| CAGR | +29.98% | +42.49% | |
| Sharpe ratio | 1.40 | 1.67 | |
| Max drawdown | 8.98% | 11.03% | |
| Max daily drop | 2.97% | 3.55% | |
| Max wkly drop | 4.30% | 4.62% | |
| 5Y | Growth | +46.24% | +41.62% |
| CAGR | +7.90% | +7.21% | |
| Sharpe ratio | 0.25 | 0.22 | |
| Max drawdown | 28.15% | 31.91% | |
| Max daily drop | 6.72% | 6.42% | |
| Max wkly drop | 12.92% | 12.38% | |
| 10Y | Growth | +196.29% | +192.18% |
| CAGR | +11.48% | +11.33% | |
| Sharpe ratio | 0.41 | 0.39 | |
| Max drawdown | 42.05% | 41.13% | |
| Max daily drop | 13.08% | 13.27% | |
| Max wkly drop | 22.91% | 24.00% |
| Category | VB | IWM |
|---|---|---|
| Fund name | Vanguard Small-Cap Index Fund ETF Shares | iShares Russell 2000 ETF |
| Type | ETF | ETF |
| Expense ratio | 0.03% | 0.19% |
| Total assets (AUM) | $182.65B | $80.93B |
| Dividend yield | 1.19% | 0.87% |
- →0.05% expense ratio is dramatically lower than IWM's 0.19%, saving significant costs over long holding periods
- →CRSP index reconstitution methodology reduces turnover relative to the Russell 2000's annual June reconstitution event
- →Slightly higher average market cap than IWM provides a marginal quality tilt within the small-cap universe
- →Most liquid small-cap ETF globally, with the deepest options market for hedging and tactical strategies
- →Alignment with the Russell 2000 benchmark allows investors to measure performance against the standard small-cap index
- →Extremely high daily trading volume and tight bid-ask spreads support large institutional block transactions
- →IWM is the benchmark for small-cap investors globally — VB's CRSP index is less recognized, potentially causing tracking differences vs small-cap benchmarks
- →Lower AUM and trading volume than IWM means slightly wider bid-ask spreads for large trades
- →Small-cap stocks are more economically sensitive and tend to underperform in risk-off environments
- →0.19% expense ratio is nearly 4x more expensive than VB's 0.05%
- →Russell 2000 annual June reconstitution causes significant turnover and front-running by index arbitrage traders
- →Russell 2000 includes more micro-cap and financially distressed companies than CRSP, resulting in higher-risk small-cap exposure
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