IEOSX vs. IIRLX

Last updated Jun 24, 2026

IEOSX (Voya Large Cap Growth Portfolio) and IIRLX (Voya Russell Large Cap Index Portfolio) are both mutual funds - IEOSX is a Large Cap Growth Equities fund managed by Voya, while IIRLX is a Large Cap Blend Equities fund managed by Voya. Over the past 10 years, IEOSX returned 16.10%/yr vs 16.29%/yr for IIRLX. Their correlation of 0.94 suggests significant overlap in exposure. IEOSX charges 0.92%/yr vs 0.36%/yr for IIRLX.

Performance

IEOSX vs. IIRLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Voya Large Cap Growth Portfolio (IEOSX) and Voya Russell Large Cap Index Portfolio (IIRLX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IEOSX achieves a 7.45% return, which is significantly lower than IIRLX's 8.47% return. Both investments have delivered pretty close results over the past 10 years, with IEOSX having a 16.10% annualized return and IIRLX not far ahead at 16.29%.

IEOSX

• 1D: -0.70%
• 1M: 0.16%
• YTD: 7.45%
• 6M: 6.09%
• 1Y: 22.26%
• 3Y*: 22.86%
• 5Y*: 11.60%
• 10Y*: 16.10%

IIRLX

• 1D: -0.61%
• 1M: -0.50%
• YTD: 8.47%
• 6M: 7.53%
• 1Y: 25.20%
• 3Y*: 21.92%
• 5Y*: 13.84%
• 10Y*: 16.29%

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

IEOSX vs. IIRLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IEOSX Voya Large Cap Growth Portfolio	7.45%	15.13%	34.53%	37.38%	-30.74%	19.20%	30.20%	32.51%	-2.11%	29.48%
IIRLX Voya Russell Large Cap Index Portfolio	8.47%	18.77%	26.95%	29.41%	-20.07%	27.26%	21.71%	31.18%	-3.45%	22.58%

Correlation

The correlation between IEOSX and IIRLX is 0.90, 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	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.93
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (10Y) Calculated over the trailing 10-year period	0.94
Correlation (All Time) Calculated using the full available price history since Mar 11, 2008	0.94

The correlation between IEOSX and IIRLX has been stable across timeframes, ranging from 0.90 to 0.94 - a consistent structural relationship.

Return for Risk

IEOSX vs. IIRLX — Risk / Return Rank

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

IEOSX

IEOSX Risk / Return Rank: 20
IEOSX Sharpe Ratio Rank: 19
IEOSX Sortino Ratio Rank: 20
IEOSX Omega Ratio Rank: 25
IEOSX Calmar Ratio Rank: 19
IEOSX Martin Ratio Rank: 18

IIRLX

IIRLX Risk / Return Rank: 60
IIRLX Sharpe Ratio Rank: 57
IIRLX Sortino Ratio Rank: 55
IIRLX Omega Ratio Rank: 56
IIRLX Calmar Ratio Rank: 65
IIRLX Martin Ratio Rank: 67

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.

IEOSX vs. IIRLX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Voya Large Cap Growth Portfolio (IEOSX) and Voya Russell Large Cap Index Portfolio (IIRLX). 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.

	IEOSX	IIRLX	Difference
Sharpe ratio: Return per unit of total volatility	1.16	2.04	-0.89
Sortino ratio: Return per unit of downside risk	1.72	2.85	-1.13
Omega ratio: Gain probability vs. loss probability	1.24	1.38	-0.14
Calmar ratio: Return relative to maximum drawdown	1.48	2.95	-1.47
Martin ratio: Return relative to average drawdown	4.38	12.29	-7.91

IEOSX vs. IIRLX - Sharpe Ratio Comparison

The current IEOSX Sharpe Ratio is 1.16, which is lower than the IIRLX Sharpe Ratio of 2.04. The chart below compares the historical Sharpe Ratios of IEOSX and IIRLX, 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

IEOSX vs. IIRLX - Drawdown Comparison

The maximum IEOSX drawdown since its inception was -44.03%, smaller than the maximum IIRLX drawdown of -50.33%. Use the drawdown chart below to compare losses from any high point for IEOSX and IIRLX.

Drawdown Indicators

	IEOSX	IIRLX	Difference
Max Drawdown Largest peak-to-trough decline	-44.03%	-50.33%	+6.30%
Max Drawdown (1Y) Largest decline over 1 year	-17.29%	-9.83%	-7.46%
Max Drawdown (3Y) Largest decline over 3 years	-25.33%	-19.58%	-5.75%
Max Drawdown (5Y) Largest decline over 5 years	-34.91%	-25.83%	-9.08%
Max Drawdown (10Y) Largest decline over 10 years	-34.91%	-32.60%	-2.31%
Current Drawdown Current decline from peak	-7.33%	-2.36%	-4.97%
Average Drawdown Average peak-to-trough decline	-6.54%	-6.76%	+0.22%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.57%	2.26%	+3.31%

Volatility

IEOSX vs. IIRLX - Volatility Comparison

Voya Large Cap Growth Portfolio (IEOSX) has a higher volatility of 7.02% compared to Voya Russell Large Cap Index Portfolio (IIRLX) at 4.84%. This indicates that IEOSX's price experiences larger fluctuations and is considered to be riskier than IIRLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IEOSX	IIRLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.02%	4.84%	+2.18%
Volatility (6M) Calculated over the trailing 6-month period	18.81%	11.51%	+7.30%
Volatility (1Y) Calculated over the trailing 1-year period	22.13%	14.24%	+7.89%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.39%	17.87%	+5.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.94%	18.57%	+3.37%

IEOSX vs. IIRLX - Expense Ratio Comparison

IEOSX has a 0.92% expense ratio, which is higher than IIRLX's 0.36% expense ratio.

Dividends

IEOSX vs. IIRLX - Dividend Comparison

IEOSX's dividend yield for the trailing twelve months is around 11.33%, more than IIRLX's 4.88% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IEOSX Voya Large Cap Growth Portfolio	11.33%	12.18%	0.00%	0.00%	64.49%	21.60%	11.24%	17.89%	16.66%	7.29%	15.02%	11.09%
IIRLX Voya Russell Large Cap Index Portfolio	4.88%	3.76%	0.96%	1.14%	5.04%	4.77%	4.71%	4.35%	1.73%	1.47%	1.77%	1.66%

Frequently Asked Questions

Can I hold both IEOSX and IIRLX in my portfolio?

With a correlation of 0.90, IEOSX and IIRLX 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.

Which is riskier, IEOSX or IIRLX?

IEOSX has higher volatility (7.02%) compared to IIRLX (4.84%). In terms of maximum drawdown, IEOSX dropped -44.03% vs IIRLX's -50.33%.

Which has better risk-adjusted returns?

IIRLX currently has the higher Sharpe Ratio (2.04 vs 1.16), 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.