ISCG vs. IWO

Last updated Jun 4, 2026

ISCG (iShares Morningstar Small-Cap Growth ETF) and IWO (iShares Russell 2000 Growth ETF) are both Small Cap Growth Equities funds from iShares - ISCG tracks the Morningstar US Small Cap Broad Growth Extended Index while IWO tracks the Russell 2000 Growth Index. Both are passively managed. Over the past 10 years, ISCG returned 11.37%/yr vs 11.23%/yr for IWO. Their correlation of 0.95 suggests significant overlap in exposure. ISCG charges 0.06%/yr vs 0.24%/yr for IWO.

Performance

ISCG vs. IWO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Morningstar Small-Cap Growth ETF (ISCG) and iShares Russell 2000 Growth ETF (IWO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ISCG achieves a 12.92% return, which is significantly lower than IWO's 16.75% return. Both investments have delivered pretty close results over the past 10 years, with ISCG having a 11.37% annualized return and IWO not far behind at 11.23%.

ISCG

• 1D: -0.93%
• 1M: 3.29%
• YTD: 12.92%
• 6M: 12.57%
• 1Y: 30.64%
• 3Y*: 17.01%
• 5Y*: 5.31%
• 10Y*: 11.37%

IWO

• 1D: -1.41%
• 1M: 4.28%
• YTD: 16.75%
• 6M: 15.06%
• 1Y: 37.09%
• 3Y*: 18.01%
• 5Y*: 5.56%
• 10Y*: 11.23%

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

ISCG vs. IWO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ISCG iShares Morningstar Small-Cap Growth ETF	12.92%	12.88%	13.35%	23.13%	-26.75%	-1.26%	43.41%	27.66%	-6.91%	24.68%
IWO iShares Russell 2000 Growth ETF	16.75%	12.90%	15.04%	18.51%	-26.27%	2.54%	34.68%	28.48%	-9.43%	22.25%

Correlation

The correlation between ISCG and IWO is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.97
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.98
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since Jul 8, 2004	0.95

The correlation between ISCG and IWO has been stable across timeframes, ranging from 0.95 to 0.98 - a consistent structural relationship.

ISCG vs. IWO - Sectors Allocation Comparison

Sectors	ISCG	IWO
Industrials	24.6%	23.1%
Technology	21.4%	23.6%
Healthcare	15.4%	22.4%
Financial Services	10.6%	8.2%
Consumer Cyclical	9.9%	7.7%
Real Estate	5.2%	2.1%
Basic Materials	3.5%	4.2%
Consumer Defensive	2.9%	2.6%
Communication Services	2.8%	2.2%
Energy	2.8%	3.5%
Utilities	1.0%	0.7%

Return for Risk

ISCG vs. IWO — Risk / Return Rank

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

ISCG

ISCG Risk / Return Rank: 50
ISCG Sharpe Ratio Rank: 48
ISCG Sortino Ratio Rank: 48
ISCG Omega Ratio Rank: 44
ISCG Calmar Ratio Rank: 53
ISCG Martin Ratio Rank: 58

IWO

IWO Risk / Return Rank: 49
IWO Sharpe Ratio Rank: 50
IWO Sortino Ratio Rank: 49
IWO Omega Ratio Rank: 45
IWO Calmar Ratio Rank: 50
IWO Martin Ratio Rank: 52

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.

ISCG vs. IWO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Morningstar Small-Cap Growth ETF (ISCG) and iShares Russell 2000 Growth ETF (IWO). 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.

	ISCG	IWO	Difference
Sharpe ratio: Return per unit of total volatility	1.70	1.75	-0.05
Sortino ratio: Return per unit of downside risk	2.40	2.42	-0.02
Omega ratio: Gain probability vs. loss probability	1.29	1.29	0.00
Calmar ratio: Return relative to maximum drawdown	2.69	2.51	+0.19
Martin ratio: Return relative to average drawdown	10.31	8.99	+1.31
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ISCG vs. IWO - Sharpe Ratio Comparison

The current ISCG Sharpe Ratio is 1.70, which is comparable to the IWO Sharpe Ratio of 1.75. The chart below compares the historical Sharpe Ratios of ISCG and IWO, 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

	ISCG	IWO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.70	1.75	-0.05
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.23	0.23	0.00
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.49	0.47	+0.03
Sharpe Ratio (All Time) Calculated using the full available price history	0.41	0.28	+0.13

Drawdowns

ISCG vs. IWO - Drawdown Comparison

The maximum ISCG drawdown since its inception was -57.72%, roughly equal to the maximum IWO drawdown of -60.11%. Use the drawdown chart below to compare losses from any high point for ISCG and IWO.

Drawdown Indicators

	ISCG	IWO	Difference
Max Drawdown Largest peak-to-trough decline	-57.72%	-60.11%	+2.39%
Max Drawdown (1Y) Largest decline over 1 year	-11.43%	-14.87%	+3.44%
Max Drawdown (3Y) Largest decline over 3 years	-26.71%	-28.57%	+1.86%
Max Drawdown (5Y) Largest decline over 5 years	-37.80%	-40.51%	+2.71%
Max Drawdown (10Y) Largest decline over 10 years	-41.48%	-42.02%	+0.54%
Current Drawdown Current decline from peak	-0.93%	-1.51%	+0.58%
Average Drawdown Average peak-to-trough decline	-11.63%	-16.71%	+5.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.98%	4.14%	-1.16%

Volatility

ISCG vs. IWO - Volatility Comparison

The current volatility for iShares Morningstar Small-Cap Growth ETF (ISCG) is 4.93%, while iShares Russell 2000 Growth ETF (IWO) has a volatility of 6.61%. This indicates that ISCG experiences smaller price fluctuations and is considered to be less risky than IWO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ISCG	IWO	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.93%	6.61%	-1.68%
Volatility (6M) Calculated over the trailing 6-month period	13.09%	15.65%	-2.56%
Volatility (1Y) Calculated over the trailing 1-year period	18.13%	21.34%	-3.21%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.95%	24.48%	-1.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.16%	24.13%	-0.97%

ISCG vs. IWO - Expense Ratio Comparison

ISCG has a 0.06% expense ratio, which is lower than IWO's 0.24% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

ISCG vs. IWO - Dividend Comparison

ISCG's dividend yield for the trailing twelve months is around 0.56%, more than IWO's 0.40% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ISCG iShares Morningstar Small-Cap Growth ETF	0.56%	0.61%	0.84%	0.77%	0.92%	0.62%	0.10%	0.27%	0.40%	0.52%	1.19%	0.64%
IWO iShares Russell 2000 Growth ETF	0.40%	0.56%	0.80%	0.73%	0.73%	0.32%	0.44%	0.71%	0.76%	0.73%	0.97%	0.89%

Frequently Asked Questions

Can I hold both ISCG and IWO in my portfolio?

With a correlation of 0.97, ISCG and IWO 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, ISCG or IWO?

IWO has higher volatility (6.61%) compared to ISCG (4.93%). In terms of maximum drawdown, ISCG dropped -57.72% vs IWO's -60.11%.

Which ETF is better, ISCG or IWO?

On 10-year performance, ISCG leads with 11.37% vs 11.23% for IWO. On fees, ISCG is cheaper at 0.06% per year. On volatility, ISCG has been the lower-risk option at 4.93%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ISCG or IWO?

Over the 10-year period, ISCG has performed better with a 11.37% return vs 11.23%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ISCG or IWO?

ISCG is cheaper with a 0.06% expense ratio, compared with 0.24% for IWO.

Which ETF pays a higher dividend yield, ISCG or IWO?

ISCG has the higher dividend yield at 0.56%, compared with 0.40% for IWO.

What is the main difference between ISCG and IWO?

ISCG tracks Morningstar US Small Cap Broad Growth Extended Index, while IWO tracks Russell 2000 Growth Index. Their fees differ too: 0.06% for ISCG and 0.24% for IWO.

Which has better risk-adjusted returns?

IWO currently has the higher Sharpe Ratio (1.75 vs 1.70), 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.