EQNIX vs. RIDAX

Last updated Jun 26, 2026

EQNIX (MFS Equity Income Fund) and RIDAX (The Income Fund of America Class R-1) are both Large Cap Value Equities funds. Over the past 10 years, EQNIX returned 13.09%/yr vs 7.70%/yr for RIDAX. Their correlation of 0.92 suggests significant overlap in exposure. EQNIX charges 0.64%/yr vs 1.36%/yr for RIDAX.

Performance

EQNIX vs. RIDAX - Performance Comparison

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

Returns By Period

In the year-to-date period, EQNIX achieves a 13.93% return, which is significantly higher than RIDAX's 5.11% return. Over the past 10 years, EQNIX has outperformed RIDAX with an annualized return of 13.09%, while RIDAX has yielded a comparatively lower 7.70% annualized return.

EQNIX

• 1D: -0.24%
• 1M: 0.65%
• YTD: 13.93%
• 6M: 12.69%
• 1Y: 25.96%
• 3Y*: 18.50%
• 5Y*: 11.94%
• 10Y*: 13.09%

RIDAX

• 1D: -0.22%
• 1M: -0.93%
• YTD: 5.11%
• 6M: 4.63%
• 1Y: 13.07%
• 3Y*: 12.42%
• 5Y*: 6.85%
• 10Y*: 7.70%

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

EQNIX vs. RIDAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EQNIX MFS Equity Income Fund	13.93%	16.90%	12.89%	16.23%	-6.97%	26.35%	8.59%	25.72%	-7.55%	19.34%
RIDAX The Income Fund of America Class R-1	5.11%	16.83%	9.49%	6.16%	-7.14%	16.47%	3.68%	17.57%	-6.06%	11.86%

Correlation

The correlation between EQNIX and RIDAX is 0.85, 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	0.85
Correlation (3Y) Calculated over the trailing 3-year period	0.90
Correlation (5Y) Calculated over the trailing 5-year period	0.92
Correlation (10Y) Calculated over the trailing 10-year period	0.92
Correlation (All Time) Calculated using the full available price history since Jan 2, 2013	0.92

The correlation between EQNIX and RIDAX has been stable across timeframes, ranging from 0.85 to 0.92 - a consistent structural relationship.

Return for Risk

EQNIX vs. RIDAX — Risk / Return Rank

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

EQNIX

EQNIX Risk / Return Rank: 78
EQNIX Sharpe Ratio Rank: 78
EQNIX Sortino Ratio Rank: 76
EQNIX Omega Ratio Rank: 73
EQNIX Calmar Ratio Rank: 81
EQNIX Martin Ratio Rank: 82

RIDAX

RIDAX Risk / Return Rank: 45
RIDAX Sharpe Ratio Rank: 50
RIDAX Sortino Ratio Rank: 50
RIDAX Omega Ratio Rank: 47
RIDAX Calmar Ratio Rank: 40
RIDAX Martin Ratio Rank: 39

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.

EQNIX vs. RIDAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Equity Income Fund (EQNIX) and The Income Fund of America Class R-1 (RIDAX). 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.

	EQNIX	RIDAX	Difference
Sharpe ratio: Return per unit of total volatility	2.18	1.71	+0.46
Sortino ratio: Return per unit of downside risk	3.06	2.44	+0.62
Omega ratio: Gain probability vs. loss probability	1.40	1.31	+0.09
Calmar ratio: Return relative to maximum drawdown	3.24	2.06	+1.18
Martin ratio: Return relative to average drawdown	12.73	7.36	+5.37

EQNIX vs. RIDAX - Sharpe Ratio Comparison

The current EQNIX Sharpe Ratio is 2.18, which is comparable to the RIDAX Sharpe Ratio of 1.71. The chart below compares the historical Sharpe Ratios of EQNIX and RIDAX, 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

EQNIX vs. RIDAX - Drawdown Comparison

The maximum EQNIX drawdown since its inception was -36.60%, smaller than the maximum RIDAX drawdown of -42.37%. Use the drawdown chart below to compare losses from any high point for EQNIX and RIDAX.

Drawdown Indicators

	EQNIX	RIDAX	Difference
Max Drawdown Largest peak-to-trough decline	-36.60%	-42.37%	+5.77%
Max Drawdown (1Y) Largest decline over 1 year	-7.94%	-6.13%	-1.81%
Max Drawdown (3Y) Largest decline over 3 years	-16.26%	-8.71%	-7.55%
Max Drawdown (5Y) Largest decline over 5 years	-18.64%	-16.28%	-2.36%
Max Drawdown (10Y) Largest decline over 10 years	-36.60%	-26.22%	-10.38%
Current Drawdown Current decline from peak	-1.70%	-2.21%	+0.51%
Average Drawdown Average peak-to-trough decline	-3.44%	-4.39%	+0.95%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.02%	1.71%	+0.31%

Volatility

EQNIX vs. RIDAX - Volatility Comparison

MFS Equity Income Fund (EQNIX) has a higher volatility of 3.58% compared to The Income Fund of America Class R-1 (RIDAX) at 2.22%. This indicates that EQNIX's price experiences larger fluctuations and is considered to be riskier than RIDAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EQNIX	RIDAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.58%	2.22%	+1.36%
Volatility (6M) Calculated over the trailing 6-month period	9.13%	5.81%	+3.32%
Volatility (1Y) Calculated over the trailing 1-year period	11.85%	7.36%	+4.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.95%	9.48%	+5.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.11%	10.66%	+6.45%

EQNIX vs. RIDAX - Expense Ratio Comparison

EQNIX has a 0.64% expense ratio, which is lower than RIDAX's 1.36% expense ratio.

Dividends

EQNIX vs. RIDAX - Dividend Comparison

EQNIX's dividend yield for the trailing twelve months is around 10.68%, more than RIDAX's 8.83% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EQNIX MFS Equity Income Fund	10.68%	12.17%	6.60%	4.05%	6.24%	8.38%	3.71%	2.29%	7.27%	4.75%	2.42%	2.89%
RIDAX The Income Fund of America Class R-1	8.83%	9.24%	5.14%	2.38%	6.20%	5.92%	2.09%	4.25%	6.58%	3.68%	2.32%	4.26%

Frequently Asked Questions

Can I hold both EQNIX and RIDAX in my portfolio?

EQNIX and RIDAX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EQNIX or RIDAX?

EQNIX has higher volatility (3.58%) compared to RIDAX (2.22%). In terms of maximum drawdown, EQNIX dropped -36.60% vs RIDAX's -42.37%.

Which has better risk-adjusted returns?

EQNIX currently has the higher Sharpe Ratio (2.18 vs 1.71), 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.