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IYY vs. IYM
Performance
Return for Risk
Drawdowns
Volatility
Dividends

IYY vs. IYM

Last updated Jun 23, 2026

IYY (iShares Dow Jones U.S. ETF) and IYM (iShares U.S. Basic Materials ETF) are both exchange-traded funds - IYY is a Large Cap Blend Equities fund tracking the Dow Jones U.S. Index, while IYM is a Materials fund tracking the Dow Jones U.S. Basic Materials Index. Both are passively managed. Over the past 10 years, IYY returned 15.23%/yr vs 11.29%/yr for IYM. A 0.75 correlation means they provide meaningful diversification when combined. IYY charges 0.20%/yr vs 0.42%/yr for IYM.

Performance

IYY vs. IYM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Dow Jones U.S. ETF (IYY) and iShares U.S. Basic Materials ETF (IYM). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, IYY achieves a 9.81% return, which is significantly lower than IYM's 20.88% return. Over the past 10 years, IYY has outperformed IYM with an annualized return of 15.23%, while IYM has yielded a comparatively lower 11.29% annualized return.

IYY

1D
-0.50%
1M
0.33%
YTD
9.81%
6M
9.17%
1Y
26.14%
3Y*
21.07%
5Y*
12.55%
10Y*
15.23%

IYM

1D
-0.12%
1M
2.18%
YTD
20.88%
6M
19.00%
1Y
37.99%
3Y*
14.87%
5Y*
9.23%
10Y*
11.29%
*Multi-year figures are annualized to reflect compound growth (CAGR)

IYY vs. IYM - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
IYY
iShares Dow Jones U.S. ETF		9.81%17.08%24.15%26.48%-19.57%26.38%20.10%30.78%-5.16%21.33%
IYM
iShares U.S. Basic Materials ETF		20.88%20.41%-4.54%12.83%-9.15%25.62%17.87%19.22%-16.63%24.83%

Correlation

The correlation between IYY and IYM is 0.59, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

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

0.59

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

0.64

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

0.70

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

0.73

Correlation (All Time)
Calculated using the full available price history since Jun 20, 2000

0.75

The correlation between IYY and IYM shifts across timeframes, from 0.59 (1 year) to 0.75 (all time), reflecting how their relationship changes across market environments.

IYY vs. IYM - Sectors Allocation Comparison

Sectors
IYY
IYM

Technology

38.3%

-

Financial Services

11.2%

-

Communication Services

10.1%

-

Consumer Cyclical

9.9%
3.4%

Industrials

8.5%
12.5%

Healthcare

8.4%

-

Consumer Defensive

4.4%

-

Energy

3.2%

-

Utilities

2.1%

-

Real Estate

2.0%

-

Basic Materials

1.9%
83.8%

Technology

IYY
38.3%
IYM

-

Financial Services

IYY
11.2%
IYM

-

Communication Services

IYY
10.1%
IYM

-

Consumer Cyclical

IYY
9.9%
IYM
3.4%

Industrials

IYY
8.5%
IYM
12.5%

Healthcare

IYY
8.4%
IYM

-

Consumer Defensive

IYY
4.4%
IYM

-

Energy

IYY
3.2%
IYM

-

Utilities

IYY
2.1%
IYM

-

Real Estate

IYY
2.0%
IYM

-

Basic Materials

IYY
1.9%
IYM
83.8%

Compare stocks, funds, or ETFs

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

iShares Dow Jones U.S. ETF

iShares U.S. Basic Materials ETF

Often compared with IYY:
IYY vs. DIAIYY vs. VOOIYY vs. VTIIYY vs. QQQIYY vs. CIND.LIYY vs. SCHBIYY vs. TQQQ
Often compared with IYM:
IYM vs. VAWIYM vs. MXIIYM vs. CSDIYM vs. VTIIYM vs. IVVIYM vs. SOXXIYM vs. VWO

Return for Risk

IYY vs. IYM — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
IYY
IYY Risk / Return Rank: 6565
Overall Rank
IYY Sharpe Ratio Rank: 6666
Sharpe Ratio Rank
IYY Sortino Ratio Rank: 6363
Sortino Ratio Rank
IYY Omega Ratio Rank: 6565
Omega Ratio Rank
IYY Calmar Ratio Rank: 6161
Calmar Ratio Rank
IYY Martin Ratio Rank: 7272
Martin Ratio Rank
IYM
IYM Risk / Return Rank: 5858
Overall Rank
IYM Sharpe Ratio Rank: 6060
Sharpe Ratio Rank
IYM Sortino Ratio Rank: 5656
Sortino Ratio Rank
IYM Omega Ratio Rank: 5454
Omega Ratio Rank
IYM Calmar Ratio Rank: 5959
Calmar Ratio Rank
IYM Martin Ratio Rank: 6060
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.

IYY vs. IYM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Dow Jones U.S. ETF (IYY) and iShares U.S. Basic Materials ETF (IYM). 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.

IYYIYMDifference
Sharpe ratioReturn per unit of total volatility
2.08
1.95

+0.13

Sortino ratioReturn per unit of downside risk
2.83
2.60

+0.23

Omega ratioGain probability vs. loss probability

1.38

1.33

+0.05

Calmar ratioReturn relative to maximum drawdown

2.94

2.80

+0.13

Martin ratioReturn relative to average drawdown

13.08

10.54

+2.54

IYY vs. IYM - Sharpe Ratio Comparison

The current IYY Sharpe Ratio is 2.08, which is comparable to the IYM Sharpe Ratio of 1.95. The chart below compares the historical Sharpe Ratios of IYY and IYM, 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

IYY vs. IYM - Drawdown Comparison

The maximum IYY drawdown since its inception was -55.17%, smaller than the maximum IYM drawdown of -67.78%. Use the drawdown chart below to compare losses from any high point for IYY and IYM.

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Drawdown Indicators

IYYIYMDifference

Max Drawdown

Largest peak-to-trough decline

-55.17%

-67.78%

+12.61%

Max Drawdown (1Y)

Largest decline over 1 year

-8.94%

-13.61%

+4.67%

Max Drawdown (3Y)

Largest decline over 3 years

-19.06%

-23.62%

+4.56%

Max Drawdown (5Y)

Largest decline over 5 years

-25.46%

-29.94%

+4.48%

Max Drawdown (10Y)

Largest decline over 10 years

-34.90%

-42.76%

+7.86%

Current Drawdown

Current decline from peak

-1.72%

-2.07%

+0.35%

Average Drawdown

Average peak-to-trough decline

-10.82%

-11.44%

+0.62%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.00%

3.61%

-1.61%

Volatility

IYY vs. IYM - Volatility Comparison

The current volatility for iShares Dow Jones U.S. ETF (IYY) is 4.79%, while iShares U.S. Basic Materials ETF (IYM) has a volatility of 7.05%. This indicates that IYY experiences smaller price fluctuations and is considered to be less risky than IYM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

IYYIYMDifference

Volatility (1M)

Calculated over the trailing 1-month period

4.79%

7.05%

-2.26%

Volatility (6M)

Calculated over the trailing 6-month period

9.93%

15.71%

-5.78%

Volatility (1Y)

Calculated over the trailing 1-year period

12.64%

19.58%

-6.94%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

17.22%

20.48%

-3.26%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

18.21%

21.78%

-3.57%

IYY vs. IYM - Expense Ratio Comparison

IYY has a 0.20% expense ratio, which is lower than IYM's 0.42% expense ratio.

Dividends

IYY vs. IYM - Dividend Comparison

IYY's dividend yield for the trailing twelve months is around 0.88%, less than IYM's 1.26% yield.

PositionTTM20252024202320222021202020192018201720162015
IYM
iShares U.S. Basic Materials ETF		1.26%1.51%1.65%1.77%2.14%1.48%1.39%2.08%1.68%1.43%1.47%2.04%
IYY
iShares Dow Jones U.S. ETF		0.88%0.95%1.05%1.29%1.48%1.04%1.31%1.80%1.97%1.62%1.81%1.97%

Frequently Asked Questions

IYY and IYM have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

IYM has higher volatility (7.05%) compared to IYY (4.79%). In terms of maximum drawdown, IYY dropped -55.17% vs IYM's -67.78%.

On 10-year performance, IYY leads with 15.23% vs 11.29% for IYM. On fees, IYY is cheaper at 0.20% per year. On volatility, IYY has been the lower-risk option at 4.79%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, IYY has performed better with a 15.23% return vs 11.29%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

IYY is cheaper with a 0.20% expense ratio, compared with 0.42% for IYM.

IYM has the higher dividend yield at 1.26%, compared with 0.88% for IYY.

IYY is categorized as Large Cap Blend Equities, while IYM is Materials. IYY tracks Dow Jones U.S. Index, while IYM tracks Dow Jones U.S. Basic Materials Index. Their fees differ too: 0.20% for IYY and 0.42% for IYM.

IYY currently has the higher Sharpe Ratio (2.08 vs 1.95), 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.

Portfolio Optimizer

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