RIDAX vs. FDETX

Last updated Apr 1, 2026

Compare and contrast key facts about The Income Fund of America Class R-1 (RIDAX) and Fidelity Advisor Capital Development Fund Class O (FDETX).

RIDAX is an actively managed fund by American Funds. It was launched on Dec 1, 1973. FDETX is managed by Fidelity. It was launched on Dec 30, 1985.

Performance

RIDAX vs. FDETX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in The Income Fund of America Class R-1 (RIDAX) and Fidelity Advisor Capital Development Fund Class O (FDETX). The values are adjusted to include any dividend payments, if applicable.

RIDAX vs. FDETX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RIDAX The Income Fund of America Class R-1	1.29%	16.83%	9.49%	6.16%	-7.14%	16.47%	3.68%	17.57%	-6.06%	11.86%
FDETX Fidelity Advisor Capital Development Fund Class O	-5.03%	27.60%	27.07%	24.20%	-8.00%	25.32%	9.12%	31.39%	-9.09%	16.45%

Returns By Period

In the year-to-date period, RIDAX achieves a 1.29% return, which is significantly higher than FDETX's -5.03% return. Over the past 10 years, RIDAX has underperformed FDETX with an annualized return of 7.35%, while FDETX has yielded a comparatively higher 14.66% annualized return.

RIDAX

• 1D: 0.23%
• 1M: -5.77%
• YTD: 1.29%
• 6M: 3.84%
• 1Y: 13.29%
• 3Y*: 10.98%
• 5Y*: 7.05%
• 10Y*: 7.35%

FDETX

• 1D: -0.61%
• 1M: -8.06%
• YTD: -5.03%
• 6M: -0.14%
• 1Y: 24.08%
• 3Y*: 21.48%
• 5Y*: 14.54%
• 10Y*: 14.66%

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

RIDAX vs. FDETX - Expense Ratio Comparison

RIDAX has a 1.36% expense ratio, which is higher than FDETX's 0.56% expense ratio.

RIDAX

The Income Fund of America Class R-1

FDETX

Fidelity Advisor Capital Development Fund Class O

Return for Risk

RIDAX vs. FDETX — Risk / Return Rank

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

RIDAX

RIDAX Risk / Return Rank: 76
RIDAX Sharpe Ratio Rank: 80
RIDAX Sortino Ratio Rank: 79
RIDAX Omega Ratio Rank: 77
RIDAX Calmar Ratio Rank: 68
RIDAX Martin Ratio Rank: 77

FDETX

FDETX Risk / Return Rank: 78
FDETX Sharpe Ratio Rank: 76
FDETX Sortino Ratio Rank: 77
FDETX Omega Ratio Rank: 79
FDETX Calmar Ratio Rank: 77
FDETX Martin Ratio Rank: 82

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.

RIDAX vs. FDETX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for The Income Fund of America Class R-1 (RIDAX) and Fidelity Advisor Capital Development Fund Class O (FDETX). 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.

	RIDAX	FDETX	Difference
Sharpe ratio Return per unit of total volatility	1.46	1.34	+0.12
Sortino ratio Return per unit of downside risk	2.01	1.90	+0.11
Omega ratio Gain probability vs. loss probability	1.30	1.30	0.00
Calmar ratio Return relative to maximum drawdown	1.58	1.78	-0.20
Martin ratio Return relative to average drawdown	7.44	8.19	-0.75
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RIDAX vs. FDETX - Sharpe Ratio Comparison

The current RIDAX Sharpe Ratio is 1.46, which is comparable to the FDETX Sharpe Ratio of 1.34. The chart below compares the historical Sharpe Ratios of RIDAX and FDETX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	RIDAX	FDETX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.46	1.34	+0.12
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.75	0.83	-0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.69	0.78	-0.09
Sharpe Ratio (All Time) Calculated using the full available price history	0.67	0.62	+0.04

Correlation

The correlation between RIDAX and FDETX is 0.88, 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

RIDAX vs. FDETX - Dividend Comparison

RIDAX's dividend yield for the trailing twelve months is around 9.14%, less than FDETX's 10.89% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RIDAX The Income Fund of America Class R-1	9.14%	9.24%	5.14%	2.38%	6.20%	5.92%	2.09%	4.25%	6.58%	3.68%	2.32%	4.26%
FDETX Fidelity Advisor Capital Development Fund Class O	10.89%	10.34%	8.95%	4.39%	5.66%	5.63%	4.47%	7.46%	15.81%	5.34%	2.92%	5.97%

Drawdowns

RIDAX vs. FDETX - Drawdown Comparison

The maximum RIDAX drawdown since its inception was -42.37%, smaller than the maximum FDETX drawdown of -66.86%. Use the drawdown chart below to compare losses from any high point for RIDAX and FDETX.

Drawdown Indicators

	RIDAX	FDETX	Difference
Max Drawdown Largest peak-to-trough decline	-42.37%	-66.86%	+24.49%
Max Drawdown (1Y) Largest decline over 1 year	-8.25%	-12.42%	+4.17%
Max Drawdown (5Y) Largest decline over 5 years	-16.28%	-21.72%	+5.44%
Max Drawdown (10Y) Largest decline over 10 years	-26.22%	-36.61%	+10.39%
Current Drawdown Current decline from peak	-5.77%	-9.64%	+3.87%
Average Drawdown Average peak-to-trough decline	-4.42%	-11.26%	+6.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.76%	2.70%	-0.94%

Volatility

RIDAX vs. FDETX - Volatility Comparison

The current volatility for The Income Fund of America Class R-1 (RIDAX) is 2.91%, while Fidelity Advisor Capital Development Fund Class O (FDETX) has a volatility of 4.48%. This indicates that RIDAX experiences smaller price fluctuations and is considered to be less risky than FDETX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RIDAX	FDETX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.91%	4.48%	-1.57%
Volatility (6M) Calculated over the trailing 6-month period	5.47%	9.55%	-4.08%
Volatility (1Y) Calculated over the trailing 1-year period	9.48%	18.39%	-8.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.46%	17.56%	-8.10%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.67%	18.82%	-8.15%