FADMX vs. ASIEX

Last updated Jun 6, 2026

FADMX (Fidelity Strategic Income Fund) and ASIEX (American Century Strategic Income Fund) are both mutual funds - FADMX is a Total Bond Market fund managed by Fidelity, while ASIEX is a Multisector Bonds fund managed by American Century. Over the past 5 years, FADMX returned 3.28%/yr vs 1.89%/yr for ASIEX. A 0.80 correlation means they provide meaningful diversification when combined. FADMX charges 0.66%/yr vs 0.73%/yr for ASIEX.

Performance

FADMX vs. ASIEX - Performance Comparison

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

Returns By Period

In the year-to-date period, FADMX achieves a 3.29% return, which is significantly higher than ASIEX's 0.70% return.

FADMX

• 1D: 0.16%
• 1M: 0.43%
• YTD: 3.29%
• 6M: 3.71%
• 1Y: 9.73%
• 3Y*: 8.24%
• 5Y*: 3.28%
• 10Y*: —

ASIEX

• 1D: 0.11%
• 1M: -0.12%
• YTD: 0.70%
• 6M: 1.25%
• 1Y: 5.78%
• 3Y*: 6.13%
• 5Y*: 1.89%
• 10Y*: 3.61%

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

FADMX vs. ASIEX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
FADMX Fidelity Strategic Income Fund	3.29%	9.01%	6.02%	9.55%	-11.84%	3.46%	6.72%	11.06%	-2.02%
ASIEX American Century Strategic Income Fund	0.70%	8.01%	4.91%	7.22%	-11.12%	2.33%	9.17%	9.77%	-0.67%

Correlation

The correlation between FADMX and ASIEX is 0.77, 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	0.77
Correlation (3Y) Calculated over the trailing 3-year period	0.83
Correlation (5Y) Calculated over the trailing 5-year period	0.84
Correlation (All Time) Calculated using the full available price history since May 1, 2018	0.80

The correlation between FADMX and ASIEX has been stable across timeframes, ranging from 0.77 to 0.84 - a consistent structural relationship.

Return for Risk

FADMX vs. ASIEX — Risk / Return Rank

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

FADMX

FADMX Risk / Return Rank: 86
FADMX Sharpe Ratio Rank: 86
FADMX Sortino Ratio Rank: 87
FADMX Omega Ratio Rank: 86
FADMX Calmar Ratio Rank: 83
FADMX Martin Ratio Rank: 88

ASIEX

ASIEX Risk / Return Rank: 33
ASIEX Sharpe Ratio Rank: 35
ASIEX Sortino Ratio Rank: 40
ASIEX Omega Ratio Rank: 37
ASIEX Calmar Ratio Rank: 25
ASIEX Martin Ratio Rank: 30

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.

FADMX vs. ASIEX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Strategic Income Fund (FADMX) and American Century Strategic Income Fund (ASIEX). 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.

	FADMX	ASIEX	Difference
Sharpe ratio: Return per unit of total volatility	2.77	1.64	+1.13
Sortino ratio: Return per unit of downside risk	4.19	2.56	+1.63
Omega ratio: Gain probability vs. loss probability	1.58	1.31	+0.27
Calmar ratio: Return relative to maximum drawdown	3.70	1.75	+1.95
Martin ratio: Return relative to average drawdown	16.21	6.58	+9.64
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FADMX vs. ASIEX - Sharpe Ratio Comparison

The current FADMX Sharpe Ratio is 2.77, which is higher than the ASIEX Sharpe Ratio of 1.64. The chart below compares the historical Sharpe Ratios of FADMX and ASIEX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FADMX	ASIEX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.77	1.64	+1.13
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.73	0.44	+0.29
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.91	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.86	0.92	-0.06

Drawdowns

FADMX vs. ASIEX - Drawdown Comparison

The maximum FADMX drawdown since its inception was -15.98%, which is greater than ASIEX's maximum drawdown of -14.31%. Use the drawdown chart below to compare losses from any high point for FADMX and ASIEX.

Drawdown Indicators

	FADMX	ASIEX	Difference
Max Drawdown Largest peak-to-trough decline	-15.98%	-14.31%	-1.67%
Max Drawdown (1Y) Largest decline over 1 year	-2.62%	-3.18%	+0.56%
Max Drawdown (3Y) Largest decline over 3 years	-3.99%	-4.03%	+0.04%
Max Drawdown (5Y) Largest decline over 5 years	-15.98%	-14.31%	-1.67%
Max Drawdown (10Y) Largest decline over 10 years	—	-14.31%	—
Current Drawdown Current decline from peak	0.00%	-0.91%	+0.91%
Average Drawdown Average peak-to-trough decline	-3.06%	-2.54%	-0.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.60%	0.85%	-0.25%

Volatility

FADMX vs. ASIEX - Volatility Comparison

Fidelity Strategic Income Fund (FADMX) has a higher volatility of 1.35% compared to American Century Strategic Income Fund (ASIEX) at 1.25%. This indicates that FADMX's price experiences larger fluctuations and is considered to be riskier than ASIEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FADMX	ASIEX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.35%	1.25%	+0.10%
Volatility (6M) Calculated over the trailing 6-month period	2.89%	2.66%	+0.23%
Volatility (1Y) Calculated over the trailing 1-year period	3.50%	3.43%	+0.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.51%	4.33%	+0.18%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.77%	3.96%	+0.81%

FADMX vs. ASIEX - Expense Ratio Comparison

FADMX has a 0.66% expense ratio, which is lower than ASIEX's 0.73% expense ratio.

Dividends

FADMX vs. ASIEX - Dividend Comparison

FADMX's dividend yield for the trailing twelve months is around 4.28%, less than ASIEX's 5.32% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ASIEX American Century Strategic Income Fund	5.32%	5.53%	5.80%	5.15%	2.88%	5.39%	3.58%	3.07%	3.95%	3.16%	3.53%	4.23%
FADMX Fidelity Strategic Income Fund	4.28%	4.33%	4.16%	4.31%	2.91%	4.23%	3.82%	4.34%	2.74%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FADMX and ASIEX in my portfolio?

FADMX and ASIEX have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FADMX or ASIEX?

FADMX has higher volatility (1.35%) compared to ASIEX (1.25%). In terms of maximum drawdown, FADMX dropped -15.98% vs ASIEX's -14.31%.

Which has better risk-adjusted returns?

FADMX currently has the higher Sharpe Ratio (2.77 vs 1.64), 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.