ANOIX vs. RYWCX
ANOIX (American Century Small Cap Growth Fund) and RYWCX (Rydex S&P SmallCap 600 Pure Growth Fund) are both Small Cap Growth Equities funds. Over the past 10 years, ANOIX returned 14.73%/yr vs 8.32%/yr for RYWCX. Their correlation of 0.93 suggests significant overlap in exposure. ANOIX charges 1.17%/yr vs 2.26%/yr for RYWCX.
Performance
ANOIX vs. RYWCX - Performance Comparison
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Returns By Period
In the year-to-date period, ANOIX achieves a 17.86% return, which is significantly lower than RYWCX's 26.14% return. Over the past 10 years, ANOIX has outperformed RYWCX with an annualized return of 14.73%, while RYWCX has yielded a comparatively lower 8.32% annualized return.
ANOIX
- 1D
- 1.19%
- 1M
- 7.70%
- YTD
- 17.86%
- 6M
- 14.80%
- 1Y
- 27.99%
- 3Y*
- 16.70%
- 5Y*
- 5.20%
- 10Y*
- 14.73%
RYWCX
- 1D
- -0.02%
- 1M
- 8.58%
- YTD
- 26.14%
- 6M
- 22.20%
- 1Y
- 37.61%
- 3Y*
- 17.66%
- 5Y*
- 3.73%
- 10Y*
- 8.32%
ANOIX vs. RYWCX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ANOIX American Century Small Cap Growth Fund | 17.86% | 9.00% | 14.90% | 17.13% | -26.41% | 7.80% | 51.07% | 36.75% | -4.84% | 25.83% |
RYWCX Rydex S&P SmallCap 600 Pure Growth Fund | 26.14% | 7.76% | 7.20% | 17.03% | -30.33% | 16.37% | 15.23% | 11.58% | -9.55% | 15.23% |
Correlation
The correlation between ANOIX and RYWCX is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.91 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.92 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.93 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.92 |
Correlation (All Time) Calculated using the full available price history since Jan 3, 2005 | 0.93 |
The correlation between ANOIX and RYWCX has been stable across timeframes, ranging from 0.91 to 0.93 - a consistent structural relationship.
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Return for Risk
ANOIX vs. RYWCX — Risk / Return Rank
ANOIX
RYWCX
ANOIX vs. RYWCX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century Small Cap Growth Fund (ANOIX) and Rydex S&P SmallCap 600 Pure Growth Fund (RYWCX). 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 | RYWCX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.69 | ||
| Sortino ratioReturn per unit of downside risk | -1.00 | ||
| Omega ratioGain probability vs. loss probability | 1.25 | 1.36 | -0.11 |
| Calmar ratioReturn relative to maximum drawdown | 2.36 | 4.68 | -2.32 |
| Martin ratioReturn relative to average drawdown | 8.83 | 15.45 | -6.62 |
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Drawdowns
ANOIX vs. RYWCX - Drawdown Comparison
The maximum ANOIX drawdown since its inception was -59.47%, roughly equal to the maximum RYWCX drawdown of -60.64%. Use the drawdown chart below to compare losses from any high point for ANOIX and RYWCX.
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Drawdown Indicators
| ANOIX | RYWCX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -59.47% | -60.64% | +1.17% |
Max Drawdown (1Y)Largest decline over 1 year | -12.49% | -8.49% | -4.00% |
Max Drawdown (3Y)Largest decline over 3 years | -25.57% | -26.39% | +0.82% |
Max Drawdown (5Y)Largest decline over 5 years | -37.15% | -40.28% | +3.13% |
Max Drawdown (10Y)Largest decline over 10 years | -39.07% | -54.65% | +15.58% |
Current DrawdownCurrent decline from peak | 0.00% | -0.02% | +0.02% |
Average DrawdownAverage peak-to-trough decline | -11.97% | -13.42% | +1.45% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.33% | 2.57% | +0.76% |
Volatility
ANOIX vs. RYWCX - Volatility Comparison
American Century Small Cap Growth Fund (ANOIX) has a higher volatility of 6.99% compared to Rydex S&P SmallCap 600 Pure Growth Fund (RYWCX) at 5.56%. This indicates that ANOIX's price experiences larger fluctuations and is considered to be riskier than RYWCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ANOIX | RYWCX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.99% | 5.56% | +1.43% |
Volatility (6M)Calculated over the trailing 6-month period | 15.95% | 13.92% | +2.03% |
Volatility (1Y)Calculated over the trailing 1-year period | 20.71% | 18.79% | +1.92% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.08% | 22.93% | +0.15% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 23.37% | 24.75% | -1.38% |
ANOIX vs. RYWCX - Expense Ratio Comparison
ANOIX has a 1.17% expense ratio, which is lower than RYWCX's 2.26% expense ratio.
Dividends
ANOIX vs. RYWCX - Dividend Comparison
ANOIX's dividend yield for the trailing twelve months is around 6.45%, while RYWCX has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
ANOIX American Century Small Cap Growth Fund | 6.45% | 7.60% | 0.11% | 0.00% | 0.00% | 21.29% | 11.07% | 5.50% | 16.59% | 3.93% |
RYWCX Rydex S&P SmallCap 600 Pure Growth Fund | 0.00% | 0.00% | 14.52% | 0.00% | 0.00% | 59.93% | 0.00% | 0.00% | 9.26% | 3.92% |
Frequently Asked Questions
With a correlation of 0.91, ANOIX and RYWCX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
ANOIX has higher volatility (6.99%) compared to RYWCX (5.56%). In terms of maximum drawdown, ANOIX dropped -59.47% vs RYWCX's -60.64%.
RYWCX currently has the higher Sharpe Ratio (2.12 vs 1.42), 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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