ANOIX vs. IWF
ANOIX (American Century Small Cap Growth Fund) and IWF (iShares Russell 1000 Growth ETF) are both funds - ANOIX is a Small Cap Growth Equities fund managed by American Century, while IWF is a Large Cap Growth Equities fund tracking the Russell 1000 Growth Index. Over the past 10 years, ANOIX returned 14.26%/yr vs 18.46%/yr for IWF. Their correlation of 0.82 suggests significant overlap in exposure. ANOIX charges 1.17%/yr vs 0.18%/yr for IWF.
Performance
ANOIX vs. IWF - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, ANOIX achieves a 16.48% return, which is significantly higher than IWF's 3.08% return. Over the past 10 years, ANOIX has underperformed IWF with an annualized return of 14.26%, while IWF has yielded a comparatively higher 18.46% annualized return.
ANOIX
- 1D
- 2.35%
- 1M
- 6.44%
- YTD
- 16.48%
- 6M
- 13.00%
- 1Y
- 27.80%
- 3Y*
- 15.60%
- 5Y*
- 5.58%
- 10Y*
- 14.26%
IWF
- 1D
- -1.16%
- 1M
- -2.51%
- YTD
- 3.08%
- 6M
- 2.43%
- 1Y
- 21.25%
- 3Y*
- 22.44%
- 5Y*
- 13.42%
- 10Y*
- 18.46%
ANOIX vs. IWF - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ANOIX American Century Small Cap Growth Fund | 16.48% | 9.00% | 14.90% | 17.13% | -26.41% | 7.80% | 51.07% | 36.75% | -4.84% | 25.83% |
IWF iShares Russell 1000 Growth ETF | 3.08% | 18.33% | 33.12% | 42.59% | -29.31% | 27.43% | 38.25% | 35.86% | -1.67% | 29.95% |
Correlation
The correlation between ANOIX and IWF is 0.68, 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 | 0.68 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.69 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.77 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.78 |
Correlation (All Time) Calculated using the full available price history since May 31, 2001 | 0.82 |
The correlation between ANOIX and IWF shifts across timeframes, from 0.68 (1 year) to 0.82 (all time), 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.
Return for Risk
ANOIX vs. IWF — Risk / Return Rank
ANOIX
IWF
ANOIX vs. IWF - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century Small Cap Growth Fund (ANOIX) and iShares Russell 1000 Growth ETF (IWF). 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.
| ANOIX | IWF | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.01 | ||
| Sortino ratioReturn per unit of downside risk | +0.15 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 1.23 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 2.21 | 1.31 | +0.90 |
| Martin ratioReturn relative to average drawdown | 8.26 | 4.28 | +3.98 |
Loading charts...
Drawdowns
ANOIX vs. IWF - Drawdown Comparison
The maximum ANOIX drawdown since its inception was -59.47%, smaller than the maximum IWF drawdown of -64.25%. Use the drawdown chart below to compare losses from any high point for ANOIX and IWF.
Loading charts...
Drawdown Indicators
| ANOIX | IWF | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -59.47% | -64.25% | +4.78% |
Max Drawdown (1Y)Largest decline over 1 year | -12.49% | -16.27% | +3.78% |
Max Drawdown (3Y)Largest decline over 3 years | -25.57% | -23.36% | -2.21% |
Max Drawdown (5Y)Largest decline over 5 years | -37.15% | -32.72% | -4.43% |
Max Drawdown (10Y)Largest decline over 10 years | -39.07% | -32.72% | -6.35% |
Current DrawdownCurrent decline from peak | 0.00% | -5.36% | +5.36% |
Average DrawdownAverage peak-to-trough decline | -11.97% | -22.05% | +10.08% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.33% | 4.97% | -1.64% |
Volatility
ANOIX vs. IWF - Volatility Comparison
American Century Small Cap Growth Fund (ANOIX) has a higher volatility of 7.31% compared to iShares Russell 1000 Growth ETF (IWF) at 5.89%. This indicates that ANOIX's price experiences larger fluctuations and is considered to be riskier than IWF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| ANOIX | IWF | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.31% | 5.89% | +1.42% |
Volatility (6M)Calculated over the trailing 6-month period | 16.01% | 12.60% | +3.41% |
Volatility (1Y)Calculated over the trailing 1-year period | 20.65% | 16.19% | +4.46% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.08% | 21.51% | +1.57% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 23.37% | 21.04% | +2.33% |
ANOIX vs. IWF - Expense Ratio Comparison
ANOIX has a 1.17% expense ratio, which is higher than IWF's 0.18% expense ratio.
Dividends
ANOIX vs. IWF - Dividend Comparison
ANOIX's dividend yield for the trailing twelve months is around 6.52%, more than IWF's 0.35% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ANOIX American Century Small Cap Growth Fund | 6.52% | 7.60% | 0.11% | 0.00% | 0.00% | 21.29% | 11.07% | 5.50% | 16.59% | 3.93% | 0.00% | 0.00% |
IWF iShares Russell 1000 Growth ETF | 0.35% | 0.36% | 0.46% | 0.67% | 0.91% | 0.49% | 0.66% | 0.99% | 1.27% | 1.10% | 1.43% | 1.37% |
Frequently Asked Questions
ANOIX and IWF have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ANOIX has higher volatility (7.31%) compared to IWF (5.89%). In terms of maximum drawdown, ANOIX dropped -59.47% vs IWF's -64.25%.
ANOIX currently has the higher Sharpe Ratio (1.33 vs 1.32), 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.
Find the right allocation for ANOIX and IWF
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer