IWF vs. VOO
Compare and contrast key facts about iShares Russell 1000 Growth ETF (IWF) and Vanguard S&P 500 ETF (VOO).
IWF and VOO are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. IWF is a passively managed fund by iShares that tracks the performance of the Russell 1000 Growth Index. It was launched on May 22, 2000. VOO is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Index. It was launched on Sep 7, 2010. Both IWF and VOO 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
IWF vs. VOO - Performance Comparison
Loading graphics...
IWF vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IWF iShares Russell 1000 Growth ETF | -9.83% | 18.33% | 33.12% | 42.59% | -29.31% | 27.43% | 38.25% | 35.86% | -1.67% | 29.95% |
VOO Vanguard S&P 500 ETF | -4.42% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
Returns By Period
In the year-to-date period, IWF achieves a -9.83% return, which is significantly lower than VOO's -4.42% return. Over the past 10 years, IWF has outperformed VOO with an annualized return of 16.53%, while VOO has yielded a comparatively lower 14.05% annualized return.
IWF
- 1D
- 3.77%
- 1M
- -5.20%
- YTD
- -9.83%
- 6M
- -8.80%
- 1Y
- 18.54%
- 3Y*
- 21.01%
- 5Y*
- 12.22%
- 10Y*
- 16.53%
VOO
- 1D
- 2.86%
- 1M
- -5.01%
- YTD
- -4.42%
- 6M
- -1.84%
- 1Y
- 17.67%
- 3Y*
- 18.27%
- 5Y*
- 11.75%
- 10Y*
- 14.05%
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
IWF vs. VOO - Expense Ratio Comparison
IWF has a 0.19% expense ratio, which is higher than VOO'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%.
Return for Risk
IWF vs. VOO — Risk / Return Rank
IWF
VOO
IWF vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Russell 1000 Growth ETF (IWF) and Vanguard S&P 500 ETF (VOO). 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.
| IWF | VOO | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.83 | 0.98 | -0.15 |
Sortino ratioReturn per unit of downside risk | 1.35 | 1.50 | -0.15 |
Omega ratioGain probability vs. loss probability | 1.19 | 1.23 | -0.04 |
Calmar ratioReturn relative to maximum drawdown | 1.15 | 1.53 | -0.38 |
Martin ratioReturn relative to average drawdown | 3.95 | 7.29 | -3.34 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading graphics...
Sharpe Ratios by Period
| IWF | VOO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.83 | 0.98 | -0.15 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.57 | 0.70 | -0.13 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.79 | 0.78 | +0.01 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.36 | 0.83 | -0.47 |
Correlation
The correlation between IWF and VOO is 0.95, 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
IWF vs. VOO - Dividend Comparison
IWF's dividend yield for the trailing twelve months is around 0.40%, less than VOO's 1.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IWF iShares Russell 1000 Growth ETF | 0.40% | 0.36% | 0.46% | 0.67% | 0.91% | 0.49% | 0.66% | 0.99% | 1.27% | 1.10% | 1.43% | 1.37% |
VOO Vanguard S&P 500 ETF | 1.19% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Drawdowns
IWF vs. VOO - Drawdown Comparison
The maximum IWF drawdown since its inception was -64.25%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for IWF and VOO.
Loading graphics...
Drawdown Indicators
| IWF | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -64.25% | -33.99% | -30.26% |
Max Drawdown (1Y)Largest decline over 1 year | -16.27% | -11.98% | -4.29% |
Max Drawdown (5Y)Largest decline over 5 years | -32.72% | -24.52% | -8.20% |
Max Drawdown (10Y)Largest decline over 10 years | -32.72% | -33.99% | +1.27% |
Current DrawdownCurrent decline from peak | -13.12% | -6.29% | -6.83% |
Average DrawdownAverage peak-to-trough decline | -22.21% | -3.72% | -18.49% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.74% | 2.52% | +2.22% |
Volatility
IWF vs. VOO - Volatility Comparison
iShares Russell 1000 Growth ETF (IWF) has a higher volatility of 6.74% compared to Vanguard S&P 500 ETF (VOO) at 5.29%. This indicates that IWF's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading graphics...
Volatility by Period
| IWF | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.74% | 5.29% | +1.45% |
Volatility (6M)Calculated over the trailing 6-month period | 12.36% | 9.44% | +2.92% |
Volatility (1Y)Calculated over the trailing 1-year period | 22.40% | 18.10% | +4.30% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.41% | 16.82% | +4.59% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.92% | 17.99% | +2.93% |