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IWM vs. SFSNX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IWM vs. SFSNX

Last updated Jun 14, 2026

IWM (iShares Russell 2000 ETF) and SFSNX (Schwab Fundamental US Small Company Index Fund) are both Small Cap Blend Equities funds. Over the past 10 years, IWM returned 11.27%/yr vs 11.20%/yr for SFSNX. With a 0.97 correlation, they move nearly in lockstep. IWM charges 0.19%/yr vs 0.25%/yr for SFSNX.

Performance

IWM vs. SFSNX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Russell 2000 ETF (IWM) and Schwab Fundamental US Small Company Index Fund (SFSNX). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, IWM achieves a 19.22% return, which is significantly higher than SFSNX's 17.14% return. Both investments have delivered pretty close results over the past 10 years, with IWM having a 11.27% annualized return and SFSNX not far behind at 11.20%.

IWM

1D
0.87%
1M
2.99%
YTD
19.22%
6M
16.00%
1Y
41.75%
3Y*
17.23%
5Y*
6.07%
10Y*
11.27%

SFSNX

1D
2.55%
1M
4.00%
YTD
17.14%
6M
14.64%
1Y
34.12%
3Y*
15.66%
5Y*
7.28%
10Y*
11.20%
*Multi-year figures are annualized to reflect compound growth (CAGR)

IWM vs. SFSNX - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
IWM
iShares Russell 2000 ETF		19.22%12.66%11.38%16.83%-20.48%14.54%20.03%25.39%-11.12%14.58%
SFSNX
Schwab Fundamental US Small Company Index Fund		17.14%7.66%8.99%20.15%-14.79%30.91%8.49%24.44%-12.26%12.84%

Correlation

The correlation between IWM and SFSNX is 0.93, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.93

Correlation (3Y)
Calculated over the trailing 3-year period

0.96

Correlation (5Y)
Calculated over the trailing 5-year period

0.96

Correlation (10Y)
Calculated over the trailing 10-year period

0.95

Correlation (All Time)
Calculated using the full available price history since Jan 2, 2008

0.97

The correlation between IWM and SFSNX has been stable across timeframes, ranging from 0.93 to 0.97 - a consistent structural relationship.

IWM vs. SFSNX - Sectors Allocation Comparison

Sectors
IWM
SFSNX

Technology

19.2%
15.1%

Industrials

17.9%
19.1%

Healthcare

16.3%
6.8%

Financial Services

15.4%
14.5%

Consumer Cyclical

7.9%
12.2%

Real Estate

5.9%
9.8%

Energy

5.4%
6.1%

Basic Materials

4.7%
5.2%

Utilities

2.7%
2.8%

Communication Services

2.5%
4.2%

Consumer Defensive

2.2%
4.2%

Technology

IWM
19.2%
SFSNX
15.1%

Industrials

IWM
17.9%
SFSNX
19.1%

Healthcare

IWM
16.3%
SFSNX
6.8%

Financial Services

IWM
15.4%
SFSNX
14.5%

Consumer Cyclical

IWM
7.9%
SFSNX
12.2%

Real Estate

IWM
5.9%
SFSNX
9.8%

Energy

IWM
5.4%
SFSNX
6.1%

Basic Materials

IWM
4.7%
SFSNX
5.2%

Utilities

IWM
2.7%
SFSNX
2.8%

Communication Services

IWM
2.5%
SFSNX
4.2%

Consumer Defensive

IWM
2.2%
SFSNX
4.2%

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

iShares Russell 2000 ETF

Schwab Fundamental US Small Company Index Fund

Often compared with IWM:
IWM vs. SPYIWM vs. VTWOIWM vs. IJRIWM vs. AVUVIWM vs. IWNIWM vs. VOOIWM vs. TNA
Often compared with SFSNX:
SFSNX vs. SWSSXSFSNX vs. AVUVSFSNX vs. VBRSFSNX vs. NEAGXSFSNX vs. TSCGXSFSNX vs. FSLCXSFSNX vs. SFLNX

Return for Risk

IWM vs. SFSNX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
IWM
IWM Risk / Return Rank: 7272
Overall Rank
IWM Sharpe Ratio Rank: 7171
Sharpe Ratio Rank
IWM Sortino Ratio Rank: 7171
Sortino Ratio Rank
IWM Omega Ratio Rank: 6363
Omega Ratio Rank
IWM Calmar Ratio Rank: 7979
Calmar Ratio Rank
IWM Martin Ratio Rank: 7676
Martin Ratio Rank
SFSNX
SFSNX Risk / Return Rank: 6868
Overall Rank
SFSNX Sharpe Ratio Rank: 6161
Sharpe Ratio Rank
SFSNX Sortino Ratio Rank: 6565
Sortino Ratio Rank
SFSNX Omega Ratio Rank: 5454
Omega Ratio Rank
SFSNX Calmar Ratio Rank: 8585
Calmar Ratio Rank
SFSNX Martin Ratio Rank: 7373
Martin Ratio Rank
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.

IWM vs. SFSNX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Russell 2000 ETF (IWM) and Schwab Fundamental US Small Company Index Fund (SFSNX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

IWMSFSNXDifference
Sharpe ratioReturn per unit of total volatility
1.99
1.82

+0.18

Sortino ratioReturn per unit of downside risk
2.75
2.63

+0.12

Omega ratioGain probability vs. loss probability

1.33

1.31

+0.01

Calmar ratioReturn relative to maximum drawdown

3.57

3.36

+0.21

Martin ratioReturn relative to average drawdown

12.63

10.94

+1.69

IWM vs. SFSNX - Sharpe Ratio Comparison

The current IWM Sharpe Ratio is 1.99, which is comparable to the SFSNX Sharpe Ratio of 1.82. The chart below compares the historical Sharpe Ratios of IWM and SFSNX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

IWM vs. SFSNX - Drawdown Comparison

The maximum IWM drawdown since its inception was -59.05%, roughly equal to the maximum SFSNX drawdown of -58.32%. Use the drawdown chart below to compare losses from any high point for IWM and SFSNX.

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Drawdown Indicators

IWMSFSNXDifference

Max Drawdown

Largest peak-to-trough decline

-59.05%

-58.32%

-0.73%

Max Drawdown (1Y)

Largest decline over 1 year

-11.03%

-9.43%

-1.60%

Max Drawdown (3Y)

Largest decline over 3 years

-27.50%

-25.91%

-1.59%

Max Drawdown (5Y)

Largest decline over 5 years

-31.91%

-25.91%

-6.00%

Max Drawdown (10Y)

Largest decline over 10 years

-41.13%

-44.82%

+3.69%

Current Drawdown

Current decline from peak

0.00%

0.00%

0.00%

Average Drawdown

Average peak-to-trough decline

-10.76%

-8.30%

-2.46%

Ulcer Index

Depth and duration of drawdowns from previous peaks

3.12%

2.89%

+0.23%

Volatility

IWM vs. SFSNX - Volatility Comparison

iShares Russell 2000 ETF (IWM) has a higher volatility of 7.16% compared to Schwab Fundamental US Small Company Index Fund (SFSNX) at 5.25%. This indicates that IWM's price experiences larger fluctuations and is considered to be riskier than SFSNX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

IWMSFSNXDifference

Volatility (1M)

Calculated over the trailing 1-month period

7.16%

5.25%

+1.91%

Volatility (6M)

Calculated over the trailing 6-month period

14.29%

12.32%

+1.97%

Volatility (1Y)

Calculated over the trailing 1-year period

19.73%

17.42%

+2.31%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

22.61%

20.86%

+1.75%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

23.08%

23.29%

-0.21%

IWM vs. SFSNX - Expense Ratio Comparison

IWM has a 0.19% expense ratio, which is lower than SFSNX's 0.25% 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

IWM vs. SFSNX - Dividend Comparison

IWM's dividend yield for the trailing twelve months is around 0.87%, less than SFSNX's 1.16% yield.

PositionTTM20252024202320222021202020192018201720162015
IWM
iShares Russell 2000 ETF		0.87%1.04%1.15%1.35%1.48%0.94%1.04%1.26%1.40%1.26%1.38%1.54%
SFSNX
Schwab Fundamental US Small Company Index Fund		1.16%1.36%1.71%1.37%7.05%12.27%1.42%3.66%11.55%6.88%1.86%6.37%

Frequently Asked Questions

With a correlation of 0.93, IWM and SFSNX 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.

IWM has higher volatility (7.16%) compared to SFSNX (5.25%). In terms of maximum drawdown, IWM dropped -59.05% vs SFSNX's -58.32%.

IWM currently has the higher Sharpe Ratio (1.99 vs 1.82), 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.

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