MMSC vs. IWO

Last updated Jun 4, 2026

MMSC (First Trust Multi-Manager Small Cap Opportunities ETF) and IWO (iShares Russell 2000 Growth ETF) are both Small Cap Growth Equities funds. MMSC is actively managed, while IWO is passively managed. Over the past 3 years, MMSC returned 22.52%/yr vs 18.01%/yr for IWO. With a 0.96 correlation, they move nearly in lockstep. MMSC charges 0.95%/yr vs 0.24%/yr for IWO.

Performance

MMSC vs. IWO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in First Trust Multi-Manager Small Cap Opportunities ETF (MMSC) 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, MMSC achieves a 17.91% return, which is significantly higher than IWO's 16.75% return.

MMSC

• 1D: -0.56%
• 1M: 5.15%
• YTD: 17.91%
• 6M: 17.19%
• 1Y: 42.14%
• 3Y*: 22.52%
• 5Y*: —
• 10Y*: —

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)

MMSC vs. IWO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
MMSC First Trust Multi-Manager Small Cap Opportunities ETF	17.91%	15.45%	22.19%	18.76%	-30.98%	1.01%
IWO iShares Russell 2000 Growth ETF	16.75%	12.90%	15.04%	18.51%	-26.27%	-2.74%

Correlation

The correlation between MMSC and IWO is 0.96 - 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	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (All Time) Calculated using the full available price history since Oct 15, 2021	0.96

The correlation between MMSC and IWO has been stable across timeframes, ranging from 0.95 to 0.96 - a consistent structural relationship.

MMSC vs. IWO - Sectors Allocation Comparison

Sectors	MMSC	IWO
Industrials	27.4%	23.1%
Technology	23.4%	23.6%
Healthcare	22.2%	22.4%
Financial Services	8.1%	8.2%
Consumer Cyclical	7.2%	7.7%
Energy	6.7%	3.5%
Basic Materials	2.5%	4.2%
Consumer Defensive	1.4%	2.6%
Utilities	0.7%	0.7%
Communication Services	0.5%	2.2%
Real Estate	0.2%	2.1%

Return for Risk

MMSC vs. IWO — Risk / Return Rank

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

MMSC

MMSC Risk / Return Rank: 57
MMSC Sharpe Ratio Rank: 56
MMSC Sortino Ratio Rank: 53
MMSC Omega Ratio Rank: 51
MMSC Calmar Ratio Rank: 61
MMSC Martin Ratio Rank: 64

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.

MMSC vs. IWO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for First Trust Multi-Manager Small Cap Opportunities ETF (MMSC) 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.

	MMSC	IWO	Difference
Sharpe ratio: Return per unit of total volatility	1.90	1.75	+0.15
Sortino ratio: Return per unit of downside risk	2.56	2.42	+0.14
Omega ratio: Gain probability vs. loss probability	1.32	1.29	+0.03
Calmar ratio: Return relative to maximum drawdown	3.00	2.51	+0.50
Martin ratio: Return relative to average drawdown	11.46	8.99	+2.47
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MMSC vs. IWO - Sharpe Ratio Comparison

The current MMSC Sharpe Ratio is 1.90, which is comparable to the IWO Sharpe Ratio of 1.75. The chart below compares the historical Sharpe Ratios of MMSC 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

	MMSC	IWO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.90	1.75	+0.15
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.23	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.47	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.29	0.28	+0.01

Drawdowns

MMSC vs. IWO - Drawdown Comparison

The maximum MMSC drawdown since its inception was -40.82%, smaller than the maximum IWO drawdown of -60.11%. Use the drawdown chart below to compare losses from any high point for MMSC and IWO.

Drawdown Indicators

	MMSC	IWO	Difference
Max Drawdown Largest peak-to-trough decline	-40.82%	-60.11%	+19.29%
Max Drawdown (1Y) Largest decline over 1 year	-14.10%	-14.87%	+0.77%
Max Drawdown (3Y) Largest decline over 3 years	-29.76%	-28.57%	-1.19%
Max Drawdown (5Y) Largest decline over 5 years	—	-40.51%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-42.02%	—
Current Drawdown Current decline from peak	-0.70%	-1.51%	+0.81%
Average Drawdown Average peak-to-trough decline	-18.78%	-16.71%	-2.07%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.69%	4.14%	-0.45%

Volatility

MMSC vs. IWO - Volatility Comparison

First Trust Multi-Manager Small Cap Opportunities ETF (MMSC) and iShares Russell 2000 Growth ETF (IWO) have volatilities of 6.69% and 6.61%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MMSC	IWO	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.69%	6.61%	+0.08%
Volatility (6M) Calculated over the trailing 6-month period	17.11%	15.65%	+1.46%
Volatility (1Y) Calculated over the trailing 1-year period	22.35%	21.34%	+1.01%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.46%	24.48%	-0.02%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.46%	24.13%	+0.33%

MMSC vs. IWO - Expense Ratio Comparison

MMSC has a 0.95% expense ratio, which is higher than IWO's 0.24% expense ratio.

Dividends

MMSC vs. IWO - Dividend Comparison

MMSC has not paid dividends to shareholders, while IWO's dividend yield for the trailing twelve months is around 0.40%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
MMSC First Trust Multi-Manager Small Cap Opportunities ETF	0.00%	0.00%	0.41%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MMSC and IWO in my portfolio?

With a correlation of 0.96, MMSC 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, MMSC or IWO?

MMSC has higher volatility (6.69%) compared to IWO (6.61%). In terms of maximum drawdown, MMSC dropped -40.82% vs IWO's -60.11%.

Which ETF is better, MMSC or IWO?

On 3-year performance, MMSC leads with 22.52% vs 18.01% for IWO. On fees, IWO is cheaper at 0.24% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MMSC or IWO?

Over the 3-year period, MMSC has performed better with a 22.52% return vs 18.01%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MMSC or IWO?

IWO is cheaper with a 0.24% expense ratio, compared with 0.95% for MMSC.

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

IWO has the higher dividend yield at 0.40%, compared with 0.00% for MMSC.

What is the main difference between MMSC and IWO?

They also come from different issuers: First Trust and iShares. Their fees differ too: 0.95% for MMSC and 0.24% for IWO.

Which has better risk-adjusted returns?

MMSC currently has the higher Sharpe Ratio (1.90 vs 1.75), 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.