How do IWM and VTWO differ fundamentally?

IWM tracks the Russell 2000 Index from iShares (BlackRock), while VTWO tracks the Russell 2000 Index from Vanguard. Both aim at similar exposure, so the differences show up mainly in index construction, cost, and liquidity rather than the underlying investment thesis.

What should investors watch with IWM and VTWO?

For IWM: higher expense ratio than newer small-cap index funds. For VTWO: far less liquid and no meaningful options market versus IWM. Both funds carry the risks typical of their category, so position sizing and time horizon matter as much as the fund choice itself.

Which is better for long-term investors — IWM or VTWO?

Long-term investors should weigh IWM's emphasis on the most liquid way to trade or hold small-cap exposure against VTWO's emphasis on the low-cost, buy-and-hold version of the small-cap benchmark, along with each fund's expense ratio and tracking record, since those factors compound over a multi-year holding period more than any single year's performance.

Data as of: September 6, 2026

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IWM

iShares Russell 2000 ETF · ETF

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VTWO

Vanguard Russell 2000 ETF · ETF

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Comparison scoreboard

MIXED SETUP

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Quick take

IWM vs VTWO Stock Comparison: AI Score, Valuation, Performance and Upside

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IWM and VTWO both target small-cap blend exposure but take different paths to get there — IWM via the Russell 2000 Index, and VTWO via the Russell 2000 Index. The practical differences come down to issuer, cost structure, and the specific index rules each fund follows, since both are pursuing a similar investment outcome.

IWM vs VTWO is largely a question of which issuer and index methodology you trust more for small-cap blend exposure — the underlying investment case is similar, so cost, liquidity, and tracking precision tend to be the deciding factors.

Normalized 1Y performance

IWM

VTWO

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Recent returns

IWM

VTWO

Not enough data to chart yet.

Analyst price targets & sentiment

Human Wall Street analysts' price targets, typically implying a ~12-month view — a separate signal from this site's own AI Prediction Signal further down the page, which is a 5-/30-day machine-learning forecast based on price history alone.

IWM

Price target data unavailable

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VTWO

Price target data unavailable

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Who should consider this stock?

IWM may suit investors who:

want the most liquid way to trade or hold small-cap exposure
prefer iShares (BlackRock)'s approach and fund lineup
value by far the deepest options market of any small-cap ETF
are comfortable with higher expense ratio than newer small-cap index funds

VTWO may suit investors who:

want the low-cost, buy-and-hold version of the small-cap benchmark
prefer Vanguard's approach and fund lineup
value significantly cheaper than IWM for the same index exposure
are comfortable with far less liquid and no meaningful options market versus IWM

Performance & AI score

Performance & AI score
Metric	IWM	VTWO
AI scorei	N/A	N/A
AI ranki	N/A	N/A
Latest closei	N/A	N/A

Valuation & upside potential

Valuation & upside potential
Metric	IWM	VTWO
Market capi	N/A	N/A
Trailing P/Ei	N/A	N/A
Forward P/Ei	N/A	N/A
Price/Salesi	N/A	N/A
EV/Revenuei	N/A	N/A
Analyst targeti	N/A	N/A
Target upsidei	N/A	N/A

Growth, profitability & risk

Growth, profitability & risk
Metric	IWM	VTWO
Revenue growthi	N/A	N/A
Earnings growthi	N/A	N/A
EPS growthi	N/A	N/A
FCF margini	N/A	N/A
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ROIC proxyi	N/A	N/A
Return on equityi	N/A	N/A
Dividend yieldi	N/A	N/A
Payout ratioi	N/A	N/A
Dividend growth streaki	N/A	N/A
Betai	N/A	N/A
Debt/equityi	N/A	N/A
Current ratioi	N/A	N/A
Quick ratioi	N/A	N/A

Drawdown & downside risk

Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.

1Y risk snapshot

IWM max drawdowniN/A

VTWO max drawdowniN/A

IWM max wkly dropiN/A

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5Y risk snapshot

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10Y risk snapshot

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Performance metrics by period

Performance metrics by period
Period	Metric	IWM	VTWO
1Y	Growthi	N/A	N/A
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	Ulcer Indexi	N/A	N/A
	Max daily dropi	N/A	N/A
	Max wkly dropi	N/A	N/A
5Y	Growthi	N/A	N/A
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	Sortino ratioi	N/A	N/A
	Max drawdowni	N/A	N/A
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	Ulcer Indexi	N/A	N/A
	Max daily dropi	N/A	N/A
	Max wkly dropi	N/A	N/A
10Y	Growthi	N/A	N/A
	CAGRi	N/A	N/A
	Volatilityi	N/A	N/A
	Sharpe ratioi	N/A	N/A
	Sortino ratioi	N/A	N/A
	Max drawdowni	N/A	N/A
	Current drawdowni	N/A	N/A
	Avg drawdowni	N/A	N/A
	Ulcer Indexi	N/A	N/A
	Max daily dropi	N/A	N/A
	Max wkly dropi	N/A	N/A

AI Prediction Signali

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Next 5 trading days

IWM

+2.8%BUY

VTWO

+1.1%HOLD

Next 30 trading days

IWM

+6.4%BUY

VTWO

+3.2%HOLD

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Business comparison

Business comparison
Category	IWM	VTWO
Company	iShares Russell 2000 ETF	Vanguard Russell 2000 ETF
Sector	ETF	ETF
Industry	N/A	N/A
Core business	IWM is the most heavily traded small-cap ETF, tracking the Russell 2000 and widely used by traders as the small-cap benchmark and hedging vehicle. Issued by iShares (BlackRock), it tracks the Russell 2000 Index.	VTWO tracks the identical Russell 2000 Index as IWM but at a much lower cost, appealing to buy-and-hold investors over traders. Issued by Vanguard, it tracks the Russell 2000 Index.
Investor focus	IWM is built around the most liquid way to trade or hold small-cap exposure, appealing to investors who want that specific exposure rather than VTWO's approach.	VTWO is built around the low-cost, buy-and-hold version of the small-cap benchmark, appealing to investors who want that specific exposure rather than IWM's approach.

IWM strengths

By far the deepest options market of any small-cap ETF
Extremely high trading volume for tactical positioning
Long-standing benchmark status

VTWO strengths

Significantly cheaper than IWM for the same index exposure
Vanguard's tax-efficient structure
Ideal for long-term small-cap allocations rather than trading

Risks to watch — IWM

Higher expense ratio than newer small-cap index funds
Russell 2000 includes many unprofitable, speculative companies
More rate-sensitive and volatile than large-cap funds

Risks to watch — VTWO

Far less liquid and no meaningful options market versus IWM
Same inclusion of unprofitable small-caps as any Russell 2000 fund
Small-caps remain volatile and rate-sensitive

Frequently asked questions

Neither IWM nor VTWO is universally "better" — IWM is built for the most liquid way to trade or hold small-cap exposure, while VTWO is built for the low-cost, buy-and-hold version of the small-cap benchmark. Investors should pick based on which exposure and cost structure fits their own portfolio goals rather than assuming one strictly dominates the other.

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Volatility, Sharpe and Sortino ratios, maximum, current, and average drawdown, Ulcer Index, and worst single-day and single-week drops across every timeframe.

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Pairwise daily-return correlation for every combination, so you can see whether two holdings actually diversify each other or just move together.

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A scatter plot of forward P/E against return on equity, plus drawdown and 30-day rolling volatility charts, to separate what is cheap from what is merely beaten down.

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