ASIEX vs. ACFOX

Last updated Aug 5, 2026

ASIEX (American Century Strategic Income Fund) and ACFOX (American Century Investments Focused Dynamic Growth Fund) are both mutual funds - ASIEX is a Multisector Bonds fund managed by American Century, while ACFOX is a Large Cap Growth Equities fund managed by American Century. Over the past 10 years, ASIEX returned 3.34%/yr vs 17.81%/yr for ACFOX. Their 0.22 correlation means their historical movements had little consistent relationship. ASIEX charges 0.73%/yr vs 0.85%/yr for ACFOX.

Performance

ASIEX vs. ACFOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Strategic Income Fund (ASIEX) and American Century Investments Focused Dynamic Growth Fund (ACFOX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ASIEX achieves a 0.13% return, which is significantly lower than ACFOX's 2.03% return. Over the past 10 years, ASIEX has underperformed ACFOX with an annualized return of 3.34%, while ACFOX has yielded a comparatively higher 17.81% annualized return.

ASIEX

• 1D: 0.23%
• 1M: -0.90%
• 6M: -0.19%
• YTD: 0.13%
• 1Y: 2.96%
• 3Y*: 6.03%
• 5Y*: 1.59%
• 10Y*: 3.34%
• ALL TIME*: 3.43%

ACFOX

• 1D: 2.80%
• 1M: -1.75%
• 6M: 4.51%
• YTD: 2.03%
• 1Y: 13.74%
• 3Y*: 23.35%
• 5Y*: 7.88%
• 10Y*: 17.81%
• ALL TIME*: 12.19%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
ACFOX American Century Investments Focused Dynamic Growth Fund	$0.00	$0.00	$0.00
ASIEX American Century Strategic Income Fund	$0.00	$0.00	$0.00

ASIEX vs. ACFOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ASIEX American Century Strategic Income Fund	0.13%	8.01%	4.91%	7.22%	-11.12%	2.33%	9.17%	9.77%	-1.62%	6.01%
ACFOX American Century Investments Focused Dynamic Growth Fund	2.03%	20.51%	43.30%	35.66%	-36.32%	7.08%	73.31%	32.30%	6.51%	34.55%

Correlation

The correlation between ASIEX and ACFOX is 0.35, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.35
Correlation (3Y) Balances recent behavior with more history.	0.21
Correlation (5Y) Shows whether the relationship held over a longer period.	0.24
Correlation (10Y) Provides a long-term view across more market conditions.	0.22
Correlation (All Time) Calculated using the full available price history since Jan 2, 2015	0.22

The correlation between ASIEX and ACFOX shifts across timeframes, from 0.21 (3 years) to 0.35 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

ASIEX vs. ACFOX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

ASIEX

ASIEX Risk / Return Rank: 22
ASIEX Sharpe Ratio Rank: 24
ASIEX Sortino Ratio Rank: 24
ASIEX Omega Ratio Rank: 23
ASIEX Calmar Ratio Rank: 19
ASIEX Martin Ratio Rank: 21

ACFOX

ACFOX Risk / Return Rank: 19
ACFOX Sharpe Ratio Rank: 19
ACFOX Sortino Ratio Rank: 19
ACFOX Omega Ratio Rank: 19
ACFOX Calmar Ratio Rank: 19
ACFOX Martin Ratio Rank: 20

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

ASIEX vs. ACFOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Strategic Income Fund (ASIEX) and American Century Investments Focused Dynamic Growth Fund (ACFOX). 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.

	ASIEX	ACFOX	Difference
Sharpe ratio: Return per unit of total volatility	0.97	0.76	+0.21
Sortino ratio: Return per unit of downside risk	1.47	1.15	+0.32
Omega ratio: Gain probability vs. loss probability	1.18	1.14	+0.04
Calmar ratio: Return relative to maximum drawdown	1.01	0.98	+0.03
Martin ratio: Return relative to average drawdown	3.41	2.87	+0.54

ASIEX vs. ACFOX - Sharpe Ratio Comparison

The current ASIEX Sharpe Ratio is 0.97, which is comparable to the ACFOX Sharpe Ratio of 0.76. The chart below compares the historical Sharpe Ratios of ASIEX and ACFOX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

ASIEX vs. ACFOX - Drawdown Comparison

The maximum ASIEX drawdown since its inception was -14.31%, smaller than the maximum ACFOX drawdown of -58.92%. Use the drawdown chart below to compare losses from any high point for ASIEX and ACFOX.

Drawdown Indicators

	ASIEX	ACFOX	Difference
Max Drawdown Largest peak-to-trough decline	-14.31%	-58.92%	+44.61%
Max Drawdown (1Y) Largest decline over 1 year	-3.18%	-16.52%	+13.34%
Max Drawdown (3Y) Largest decline over 3 years	-3.67%	-27.03%	+23.36%
Max Drawdown (5Y) Largest decline over 5 years	-14.31%	-43.77%	+29.46%
Max Drawdown (10Y) Largest decline over 10 years	-14.31%	-43.77%	+29.46%
Current Drawdown Current decline from peak	-1.48%	-7.62%	+6.14%
Average Drawdown Average peak-to-trough decline	-2.52%	-14.64%	+12.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.94%	5.66%	-4.72%

Volatility

ASIEX vs. ACFOX - Volatility Comparison

The current volatility for American Century Strategic Income Fund (ASIEX) is 0.74%, while American Century Investments Focused Dynamic Growth Fund (ACFOX) has a volatility of 7.69%. This indicates that ASIEX experiences smaller price fluctuations and is considered to be less risky than ACFOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ASIEX	ACFOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.74%	7.69%	-6.95%
Volatility (6M) Calculated over the trailing 6-month period	2.77%	17.59%	-14.82%
Volatility (1Y) Calculated over the trailing 1-year period	3.32%	21.43%	-18.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.35%	25.70%	-21.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.97%	24.00%	-20.03%

ASIEX vs. ACFOX - Expense Ratio Comparison

ASIEX has a 0.73% expense ratio, which is lower than ACFOX's 0.85% expense ratio.

Dividends

ASIEX vs. ACFOX - Dividend Comparison

ASIEX's dividend yield for the trailing twelve months is around 4.91%, less than ACFOX's 7.40% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ACFOX American Century Investments Focused Dynamic Growth Fund	7.40%	7.56%	0.00%	0.00%	0.00%	2.48%	0.62%	0.00%	0.00%	0.00%	1.15%	1.33%
ASIEX American Century Strategic Income Fund	4.91%	5.53%	5.80%	5.15%	2.88%	5.39%	3.58%	3.07%	3.95%	3.16%	3.53%	4.23%

Frequently Asked Questions

Can I hold both ASIEX and ACFOX in my portfolio?

ASIEX and ACFOX have a correlation of 0.35, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ASIEX or ACFOX?

ACFOX has higher volatility (7.69%) compared to ASIEX (0.74%). In terms of maximum drawdown, ASIEX dropped -14.31% vs ACFOX's -58.92%.

Which has better risk-adjusted returns?

ASIEX currently has the higher Sharpe Ratio (0.97 vs 0.76), 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.