IWL vs. OEF

Last updated Apr 2, 2026

Compare and contrast key facts about iShares Russell Top 200 ETF (IWL) and iShares S&P 100 ETF (OEF).

IWL and OEF are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. IWL is a passively managed fund by iShares that tracks the performance of the Russell Top 200 Index. It was launched on Sep 22, 2009. OEF is a passively managed fund by iShares that tracks the performance of the S&P 100 Index. It was launched on Oct 23, 2000. Both IWL and OEF are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

IWL vs. OEF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Russell Top 200 ETF (IWL) and iShares S&P 100 ETF (OEF). The values are adjusted to include any dividend payments, if applicable.

IWL vs. OEF - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IWL iShares Russell Top 200 ETF	-4.96%	19.09%	27.12%	29.77%	-19.89%	27.79%	22.10%	31.42%	-3.30%	22.90%
OEF iShares S&P 100 ETF	-6.33%	19.80%	30.74%	32.71%	-21.03%	29.18%	21.21%	31.87%	-4.16%	21.82%

Returns By Period

In the year-to-date period, IWL achieves a -4.96% return, which is significantly higher than OEF's -6.33% return. Both investments have delivered pretty close results over the past 10 years, with IWL having a 14.87% annualized return and OEF not far ahead at 15.05%.

IWL

• 1D: 0.84%
• 1M: -4.26%
• YTD: -4.96%
• 6M: -2.52%
• 1Y: 18.46%
• 3Y*: 19.81%
• 5Y*: 12.42%
• 10Y*: 14.87%

OEF

• 1D: 0.72%
• 1M: -4.08%
• YTD: -6.33%
• 6M: -3.65%
• 1Y: 19.18%
• 3Y*: 20.95%
• 5Y*: 13.32%
• 10Y*: 15.05%

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

IWL vs. OEF - Expense Ratio Comparison

IWL has a 0.15% expense ratio, which is lower than OEF's 0.20% 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%.

OEF

iShares S&P 100 ETF

IWL

iShares Russell Top 200 ETF

Return for Risk

IWL vs. OEF — Risk / Return Rank

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

IWL

IWL Risk / Return Rank: 59
IWL Sharpe Ratio Rank: 54
IWL Sortino Ratio Rank: 57
IWL Omega Ratio Rank: 60
IWL Calmar Ratio Rank: 60
IWL Martin Ratio Rank: 66

OEF

OEF Risk / Return Rank: 59
OEF Sharpe Ratio Rank: 53
OEF Sortino Ratio Rank: 58
OEF Omega Ratio Rank: 60
OEF Calmar Ratio Rank: 62
OEF Martin Ratio Rank: 63

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.

IWL vs. OEF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Russell Top 200 ETF (IWL) and iShares S&P 100 ETF (OEF). 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.

	IWL	OEF	Difference
Sharpe ratio Return per unit of total volatility	1.00	1.00	+0.01
Sortino ratio Return per unit of downside risk	1.53	1.54	-0.01
Omega ratio Gain probability vs. loss probability	1.23	1.23	0.00
Calmar ratio Return relative to maximum drawdown	1.60	1.63	-0.03
Martin ratio Return relative to average drawdown	6.94	6.46	+0.48
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IWL vs. OEF - Sharpe Ratio Comparison

The current IWL Sharpe Ratio is 1.00, which is comparable to the OEF Sharpe Ratio of 1.00. The chart below compares the historical Sharpe Ratios of IWL and OEF, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	IWL	OEF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.00	1.00	+0.01
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.73	0.76	-0.03
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.83	0.82	+0.01
Sharpe Ratio (All Time) Calculated using the full available price history	0.83	0.41	+0.41

Correlation

The correlation between IWL and OEF is 0.93, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

IWL vs. OEF - Dividend Comparison

IWL's dividend yield for the trailing twelve months is around 0.95%, less than OEF's 0.98% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IWL iShares Russell Top 200 ETF	0.95%	0.90%	1.04%	1.30%	1.54%	1.12%	1.30%	1.96%	1.93%	1.69%	1.96%	2.14%
OEF iShares S&P 100 ETF	0.98%	0.81%	1.03%	1.19%	1.55%	1.06%	1.43%	1.87%	2.09%	1.81%	2.07%	2.11%

Drawdowns

IWL vs. OEF - Drawdown Comparison

The maximum IWL drawdown since its inception was -32.71%, smaller than the maximum OEF drawdown of -54.11%. Use the drawdown chart below to compare losses from any high point for IWL and OEF.

Drawdown Indicators

	IWL	OEF	Difference
Max Drawdown Largest peak-to-trough decline	-32.71%	-54.11%	+21.40%
Max Drawdown (1Y) Largest decline over 1 year	-11.81%	-11.93%	+0.12%
Max Drawdown (5Y) Largest decline over 5 years	-25.65%	-26.47%	+0.82%
Max Drawdown (10Y) Largest decline over 10 years	-32.71%	-31.44%	-1.27%
Current Drawdown Current decline from peak	-6.46%	-7.55%	+1.09%
Average Drawdown Average peak-to-trough decline	-3.92%	-11.83%	+7.91%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.72%	3.01%	-0.29%

Volatility

IWL vs. OEF - Volatility Comparison

iShares Russell Top 200 ETF (IWL) and iShares S&P 100 ETF (OEF) have volatilities of 5.43% and 5.64%, 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.

Volatility by Period

	IWL	OEF	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.43%	5.64%	-0.21%
Volatility (6M) Calculated over the trailing 6-month period	9.72%	10.10%	-0.38%
Volatility (1Y) Calculated over the trailing 1-year period	18.49%	19.35%	-0.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.17%	17.69%	-0.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.06%	18.41%	-0.35%