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IWB vs. SPTM
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IWB vs. SPTM

Last updated Jun 4, 2026

IWB (iShares Russell 1000 ETF) and SPTM (SPDR Portfolio S&P 1500 Composite Stock Market ETF) are both Large Cap Blend Equities funds - IWB tracks the Russell 1000 Index while SPTM tracks the S&P Composite 1500 Index. Both are passively managed. Over the past 10 years, IWB returned 15.17%/yr vs 15.21%/yr for SPTM. Their correlation of 0.94 suggests significant overlap in exposure. IWB charges 0.15%/yr vs 0.03%/yr for SPTM.

Performance

IWB vs. SPTM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Russell 1000 ETF (IWB) and SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, IWB achieves a 10.54% return, which is significantly lower than SPTM's 11.10% return. Both investments have delivered pretty close results over the past 10 years, with IWB having a 15.17% annualized return and SPTM not far ahead at 15.21%.

IWB

1D
-0.71%
1M
4.95%
YTD
10.54%
6M
10.51%
1Y
27.03%
3Y*
22.02%
5Y*
12.99%
10Y*
15.17%

SPTM

1D
-0.67%
1M
4.87%
YTD
11.10%
6M
11.13%
1Y
27.84%
3Y*
21.90%
5Y*
13.38%
10Y*
15.21%
*Multi-year figures are annualized to reflect compound growth (CAGR)

IWB vs. SPTM - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
IWB
iShares Russell 1000 ETF		10.54%17.18%24.32%26.39%-19.19%26.32%20.77%31.06%-4.90%21.52%
SPTM
SPDR Portfolio S&P 1500 Composite Stock Market ETF		11.10%16.93%23.87%25.55%-17.75%28.58%17.94%31.34%-5.30%21.18%

Correlation

The correlation between IWB and SPTM is 1.00 - 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

1.00

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

1.00

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

1.00

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

0.99

Correlation (All Time)
Calculated using the full available price history since Oct 11, 2000

0.94

The correlation between IWB and SPTM has been stable across timeframes, ranging from 0.94 to 1.00 - a consistent structural relationship.

IWB vs. SPTM - Sectors Allocation Comparison

Sectors
IWB
SPTM

Technology

36.6%
34.0%

Financial Services

11.3%
12.1%

Communication Services

10.4%
10.5%

Consumer Cyclical

10.0%
10.3%

Industrials

8.6%
9.4%

Healthcare

8.6%
8.6%

Consumer Defensive

4.5%
4.8%

Energy

3.3%
3.7%

Utilities

2.5%
2.3%

Real Estate

2.1%
2.3%

Basic Materials

1.9%
2.0%

Technology

IWB
36.6%
SPTM
34.0%

Financial Services

IWB
11.3%
SPTM
12.1%

Communication Services

IWB
10.4%
SPTM
10.5%

Consumer Cyclical

IWB
10.0%
SPTM
10.3%

Industrials

IWB
8.6%
SPTM
9.4%

Healthcare

IWB
8.6%
SPTM
8.6%

Consumer Defensive

IWB
4.5%
SPTM
4.8%

Energy

IWB
3.3%
SPTM
3.7%

Utilities

IWB
2.5%
SPTM
2.3%

Real Estate

IWB
2.1%
SPTM
2.3%

Basic Materials

IWB
1.9%
SPTM
2.0%

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 1000 ETF

SPDR Portfolio S&P 1500 Composite Stock Market ETF

Often compared with IWB:
IWB vs. IWMIWB vs. SPYIWB vs. VONEIWB vs. IWDIWB vs. VOOIWB vs. IWVIWB vs. VTI
Often compared with SPTM:
SPTM vs. VTISPTM vs. SPYSPTM vs. VOOSPTM vs. ITOTSPTM vs. SCHGSPTM vs. BKLCSPTM vs. SCHD

Return for Risk

IWB vs. SPTM — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
IWB
IWB Risk / Return Rank: 6767
Overall Rank
IWB Sharpe Ratio Rank: 6767
Sharpe Ratio Rank
IWB Sortino Ratio Rank: 6666
Sortino Ratio Rank
IWB Omega Ratio Rank: 6666
Omega Ratio Rank
IWB Calmar Ratio Rank: 6161
Calmar Ratio Rank
IWB Martin Ratio Rank: 7373
Martin Ratio Rank
SPTM
SPTM Risk / Return Rank: 7070
Overall Rank
SPTM Sharpe Ratio Rank: 7070
Sharpe Ratio Rank
SPTM Sortino Ratio Rank: 6969
Sortino Ratio Rank
SPTM Omega Ratio Rank: 6969
Omega Ratio Rank
SPTM Calmar Ratio Rank: 6464
Calmar Ratio Rank
SPTM 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.

IWB vs. SPTM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Russell 1000 ETF (IWB) and SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM). 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.

IWBSPTMDifference
Sharpe ratioReturn per unit of total volatility
2.28
2.36

-0.08

Sortino ratioReturn per unit of downside risk
3.12
3.23

-0.11

Omega ratioGain probability vs. loss probability

1.41

1.43

-0.01

Calmar ratioReturn relative to maximum drawdown

3.06

3.22

-0.16

Martin ratioReturn relative to average drawdown

14.09

15.01

-0.92

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IWB vs. SPTM - Sharpe Ratio Comparison

The current IWB Sharpe Ratio is 2.28, which is comparable to the SPTM Sharpe Ratio of 2.36. The chart below compares the historical Sharpe Ratios of IWB and SPTM, 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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Sharpe Ratios by Period

IWBSPTMDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.28

2.36

-0.08

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.76

0.80

-0.03

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.84

0.85

-0.01

Sharpe Ratio (All Time)

Calculated using the full available price history

0.45

0.46

-0.01

Drawdowns

IWB vs. SPTM - Drawdown Comparison

The maximum IWB drawdown since its inception was -55.38%, roughly equal to the maximum SPTM drawdown of -54.80%. Use the drawdown chart below to compare losses from any high point for IWB and SPTM.

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Drawdown Indicators

IWBSPTMDifference

Max Drawdown

Largest peak-to-trough decline

-55.38%

-54.80%

-0.58%

Max Drawdown (1Y)

Largest decline over 1 year

-8.86%

-8.68%

-0.18%

Max Drawdown (3Y)

Largest decline over 3 years

-19.09%

-18.87%

-0.22%

Max Drawdown (5Y)

Largest decline over 5 years

-25.20%

-24.14%

-1.06%

Max Drawdown (10Y)

Largest decline over 10 years

-34.60%

-34.66%

+0.06%

Current Drawdown

Current decline from peak

-0.71%

-0.67%

-0.04%

Average Drawdown

Average peak-to-trough decline

-10.86%

-9.05%

-1.81%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.92%

1.86%

+0.06%

Volatility

IWB vs. SPTM - Volatility Comparison

iShares Russell 1000 ETF (IWB) and SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM) have volatilities of 2.88% and 2.88%, 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.

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Volatility by Period

IWBSPTMDifference

Volatility (1M)

Calculated over the trailing 1-month period

2.88%

2.88%

0.00%

Volatility (6M)

Calculated over the trailing 6-month period

8.97%

8.92%

+0.05%

Volatility (1Y)

Calculated over the trailing 1-year period

11.93%

11.88%

+0.05%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

17.10%

16.87%

+0.23%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

18.14%

18.03%

+0.11%

IWB vs. SPTM - Expense Ratio Comparison

IWB has a 0.15% expense ratio, which is higher than SPTM's 0.03% 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

IWB vs. SPTM - Dividend Comparison

IWB's dividend yield for the trailing twelve months is around 0.91%, less than SPTM's 1.04% yield.

PositionTTM20252024202320222021202020192018201720162015
IWB
iShares Russell 1000 ETF		0.91%1.00%1.14%1.31%1.56%1.09%1.37%1.71%2.06%1.64%1.89%1.95%
SPTM
SPDR Portfolio S&P 1500 Composite Stock Market ETF		1.04%1.13%1.28%1.44%1.69%1.25%1.56%1.72%1.90%1.66%1.91%1.92%

Frequently Asked Questions

With a correlation of 1.00, IWB and SPTM 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.

SPTM has higher volatility (2.88%) compared to IWB (2.88%). In terms of maximum drawdown, IWB dropped -55.38% vs SPTM's -54.80%.

On 10-year performance, SPTM leads with 15.21% vs 15.17% for IWB. On fees, SPTM is cheaper at 0.03% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, SPTM has performed better with a 15.21% return vs 15.17%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

SPTM is cheaper with a 0.03% expense ratio, compared with 0.15% for IWB.

SPTM has the higher dividend yield at 1.04%, compared with 0.91% for IWB.

IWB tracks Russell 1000 Index, while SPTM tracks S&P Composite 1500 Index. They also come from different issuers: iShares and State Street. Their fees differ too: 0.15% for IWB and 0.03% for SPTM.

SPTM currently has the higher Sharpe Ratio (2.36 vs 2.28), 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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