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SFSNX vs. IWM
Performance
Return for Risk
Drawdowns
Volatility
Dividends

SFSNX vs. IWM

Last updated Jun 14, 2026

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

Performance

SFSNX vs. IWM - Performance Comparison

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

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Returns By Period

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

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

SFSNX vs. IWM - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
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%
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%

Correlation

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

SFSNX vs. IWM - Sectors Allocation Comparison

Sectors
SFSNX
IWM

Industrials

19.1%
17.9%

Technology

15.1%
19.2%

Financial Services

14.5%
15.4%

Consumer Cyclical

12.2%
7.9%

Real Estate

9.8%
5.9%

Healthcare

6.8%
16.3%

Energy

6.1%
5.4%

Basic Materials

5.2%
4.7%

Consumer Defensive

4.2%
2.2%

Communication Services

4.2%
2.5%

Utilities

2.8%
2.7%

Industrials

SFSNX
19.1%
IWM
17.9%

Technology

SFSNX
15.1%
IWM
19.2%

Financial Services

SFSNX
14.5%
IWM
15.4%

Consumer Cyclical

SFSNX
12.2%
IWM
7.9%

Real Estate

SFSNX
9.8%
IWM
5.9%

Healthcare

SFSNX
6.8%
IWM
16.3%

Energy

SFSNX
6.1%
IWM
5.4%

Basic Materials

SFSNX
5.2%
IWM
4.7%

Consumer Defensive

SFSNX
4.2%
IWM
2.2%

Communication Services

SFSNX
4.2%
IWM
2.5%

Utilities

SFSNX
2.8%
IWM
2.7%

Compare stocks, funds, or ETFs

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Schwab Fundamental US Small Company Index Fund

iShares Russell 2000 ETF

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

Return for Risk

SFSNX vs. IWM — Risk / Return Rank

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

SFSNX vs. IWM - Risk-Adjusted Trends Comparison

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

SFSNXIWMDifference
Sharpe ratioReturn per unit of total volatility
1.82
1.99

-0.18

Sortino ratioReturn per unit of downside risk
2.63
2.75

-0.12

Omega ratioGain probability vs. loss probability

1.31

1.33

-0.01

Calmar ratioReturn relative to maximum drawdown

3.36

3.57

-0.21

Martin ratioReturn relative to average drawdown

10.94

12.63

-1.69

SFSNX vs. IWM - Sharpe Ratio Comparison

The current SFSNX Sharpe Ratio is 1.82, which is comparable to the IWM Sharpe Ratio of 1.99. The chart below compares the historical Sharpe Ratios of SFSNX and IWM, 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

SFSNX vs. IWM - Drawdown Comparison

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

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Drawdown Indicators

SFSNXIWMDifference

Max Drawdown

Largest peak-to-trough decline

-58.32%

-59.05%

+0.73%

Max Drawdown (1Y)

Largest decline over 1 year

-9.43%

-11.03%

+1.60%

Max Drawdown (3Y)

Largest decline over 3 years

-25.91%

-27.50%

+1.59%

Max Drawdown (5Y)

Largest decline over 5 years

-25.91%

-31.91%

+6.00%

Max Drawdown (10Y)

Largest decline over 10 years

-44.82%

-41.13%

-3.69%

Current Drawdown

Current decline from peak

0.00%

0.00%

0.00%

Average Drawdown

Average peak-to-trough decline

-8.30%

-10.76%

+2.46%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.89%

3.12%

-0.23%

Volatility

SFSNX vs. IWM - Volatility Comparison

The current volatility for Schwab Fundamental US Small Company Index Fund (SFSNX) is 5.25%, while iShares Russell 2000 ETF (IWM) has a volatility of 7.16%. This indicates that SFSNX experiences smaller price fluctuations and is considered to be less risky than IWM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

SFSNXIWMDifference

Volatility (1M)

Calculated over the trailing 1-month period

5.25%

7.16%

-1.91%

Volatility (6M)

Calculated over the trailing 6-month period

12.32%

14.29%

-1.97%

Volatility (1Y)

Calculated over the trailing 1-year period

17.42%

19.73%

-2.31%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

20.86%

22.61%

-1.75%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

23.29%

23.08%

+0.21%

SFSNX vs. IWM - Expense Ratio Comparison

SFSNX has a 0.25% expense ratio, which is higher than IWM's 0.19% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

SFSNX vs. IWM - Dividend Comparison

SFSNX's dividend yield for the trailing twelve months is around 1.16%, more than IWM's 0.87% 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, SFSNX and IWM 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, SFSNX dropped -58.32% vs IWM's -59.05%.

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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