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SHY vs. IWM
Performance
Return for Risk
Drawdowns
Volatility
Dividends

SHY vs. IWM

Last updated Jun 4, 2026

SHY (iShares 1-3 Year Treasury Bond ETF) and IWM (iShares Russell 2000 ETF) are both exchange-traded funds - SHY is a Government Bonds fund tracking the ICE US Treasury 1-3 Year Index, while IWM is a Small Cap Blend Equities fund tracking the Russell 2000 Index. Both are passively managed. Over the past 10 years, SHY returned 1.65%/yr vs 10.93%/yr for IWM. At a correlation of -0.18, they often move in opposite directions. SHY charges 0.15%/yr vs 0.19%/yr for IWM.

Performance

SHY vs. IWM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares 1-3 Year Treasury Bond ETF (SHY) 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, SHY achieves a 0.43% return, which is significantly lower than IWM's 17.07% return. Over the past 10 years, SHY has underperformed IWM with an annualized return of 1.65%, while IWM has yielded a comparatively higher 10.93% annualized return.

SHY

1D
-0.05%
1M
0.08%
YTD
0.43%
6M
0.69%
1Y
3.32%
3Y*
4.03%
5Y*
1.71%
10Y*
1.65%

IWM

1D
-1.37%
1M
3.52%
YTD
17.07%
6M
15.83%
1Y
39.10%
3Y*
17.88%
5Y*
6.11%
10Y*
10.93%
*Multi-year figures are annualized to reflect compound growth (CAGR)

SHY vs. IWM - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
SHY
iShares 1-3 Year Treasury Bond ETF		0.43%4.95%3.92%4.16%-3.88%-0.71%3.03%3.38%1.46%0.26%
IWM
iShares Russell 2000 ETF		17.07%12.66%11.38%16.83%-20.48%14.54%20.03%25.39%-11.12%14.58%

Correlation

The correlation between SHY and IWM is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.

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

0.19

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

0.16

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

0.13

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

-0.03

Correlation (All Time)
Calculated using the full available price history since Jul 29, 2002

-0.18

The correlation between SHY and IWM shifts across timeframes, from -0.18 (all time) to 0.19 (1 year), reflecting how their relationship changes across market environments.

Compare stocks, funds, or ETFs

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

iShares 1-3 Year Treasury Bond ETF

iShares Russell 2000 ETF

Often compared with SHY:
SHY vs. SGOVSHY vs. VGSHSHY vs. SHVSHY vs. TLTSHY vs. IEFSHY vs. BILSHY vs. BSV
Often compared with IWM:
IWM vs. SPYIWM vs. VTWOIWM vs. IJRIWM vs. AVUVIWM vs. IWNIWM vs. VOOIWM vs. IWO

Return for Risk

SHY vs. IWM — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
SHY
SHY Risk / Return Rank: 7979
Overall Rank
SHY Sharpe Ratio Rank: 7474
Sharpe Ratio Rank
SHY Sortino Ratio Rank: 8888
Sortino Ratio Rank
SHY Omega Ratio Rank: 8282
Omega Ratio Rank
SHY Calmar Ratio Rank: 7373
Calmar Ratio Rank
SHY Martin Ratio Rank: 7777
Martin Ratio Rank
IWM
IWM Risk / Return Rank: 6262
Overall Rank
IWM Sharpe Ratio Rank: 5959
Sharpe Ratio Rank
IWM Sortino Ratio Rank: 5959
Sortino Ratio Rank
IWM Omega Ratio Rank: 5353
Omega Ratio Rank
IWM Calmar Ratio Rank: 7070
Calmar Ratio Rank
IWM Martin Ratio Rank: 6767
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.

SHY vs. IWM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares 1-3 Year Treasury Bond ETF (SHY) 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.

SHYIWMDifference

Sharpe ratio

Return per unit of total volatility

2.49

2.05

+0.43

Sortino ratio

Return per unit of downside risk

4.10

2.85

+1.25

Omega ratio

Gain probability vs. loss probability

1.51

1.34

+0.17

Calmar ratio

Return relative to maximum drawdown

3.75

3.56

+0.19

Martin ratio

Return relative to average drawdown

15.21

12.64

+2.56

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

SHY vs. IWM - Sharpe Ratio Comparison

The current SHY Sharpe Ratio is 2.49, which is comparable to the IWM Sharpe Ratio of 2.05. The chart below compares the historical Sharpe Ratios of SHY 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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Sharpe Ratios by Period

SHYIWMDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.49

2.05

+0.43

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.87

0.27

+0.60

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

1.06

0.48

+0.58

Sharpe Ratio (All Time)

Calculated using the full available price history

1.28

0.37

+0.92

Drawdowns

SHY vs. IWM - Drawdown Comparison

The maximum SHY drawdown since its inception was -5.71%, smaller than the maximum IWM drawdown of -59.05%. Use the drawdown chart below to compare losses from any high point for SHY and IWM.

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Drawdown Indicators

SHYIWMDifference

Max Drawdown

Largest peak-to-trough decline

-5.71%

-59.05%

+53.34%

Max Drawdown (1Y)

Largest decline over 1 year

-0.89%

-11.03%

+10.14%

Max Drawdown (3Y)

Largest decline over 3 years

-0.97%

-27.50%

+26.53%

Max Drawdown (5Y)

Largest decline over 5 years

-5.71%

-31.91%

+26.20%

Max Drawdown (10Y)

Largest decline over 10 years

-5.71%

-41.13%

+35.42%

Current Drawdown

Current decline from peak

-0.31%

-1.49%

+1.18%

Average Drawdown

Average peak-to-trough decline

-0.52%

-10.77%

+10.25%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.22%

3.10%

-2.88%

Volatility

SHY vs. IWM - Volatility Comparison

The current volatility for iShares 1-3 Year Treasury Bond ETF (SHY) is 0.35%, while iShares Russell 2000 ETF (IWM) has a volatility of 5.75%. This indicates that SHY 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

SHYIWMDifference

Volatility (1M)

Calculated over the trailing 1-month period

0.35%

5.75%

-5.40%

Volatility (6M)

Calculated over the trailing 6-month period

0.92%

13.53%

-12.61%

Volatility (1Y)

Calculated over the trailing 1-year period

1.34%

19.20%

-17.86%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

1.98%

22.52%

-20.54%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

1.57%

23.04%

-21.47%

SHY vs. IWM - Expense Ratio Comparison

SHY has a 0.15% expense ratio, which is lower than IWM's 0.19% 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

SHY vs. IWM - Dividend Comparison

SHY's dividend yield for the trailing twelve months is around 3.68%, more than IWM's 0.88% yield.

PositionTTM20252024202320222021202020192018201720162015
IWM
iShares Russell 2000 ETF		0.88%1.04%1.15%1.35%1.48%0.94%1.04%1.26%1.40%1.26%1.38%1.54%
SHY
iShares 1-3 Year Treasury Bond ETF		3.68%3.81%3.92%2.99%1.30%0.26%0.94%2.12%1.72%0.98%0.71%0.54%

Frequently Asked Questions

SHY and IWM have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

IWM has higher volatility (5.75%) compared to SHY (0.35%). In terms of maximum drawdown, SHY dropped -5.71% vs IWM's -59.05%.

On 10-year performance, IWM leads with 10.93% vs 1.65% for SHY. On fees, SHY is cheaper at 0.15% per year. On volatility, SHY has been the lower-risk option at 0.35%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, IWM has performed better with a 10.93% return vs 1.65%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

SHY is cheaper with a 0.15% expense ratio, compared with 0.19% for IWM.

SHY has the higher dividend yield at 3.68%, compared with 0.88% for IWM.

SHY is categorized as Government Bonds, while IWM is Small Cap Blend Equities. SHY tracks ICE US Treasury 1-3 Year Index, while IWM tracks Russell 2000 Index. Their fees differ too: 0.15% for SHY and 0.19% for IWM.

SHY currently has the higher Sharpe Ratio (2.49 vs 2.05), 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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