IIRMX vs. LLSCX

Last updated Jun 4, 2026

IIRMX (Voya Russell Mid Cap Index Portfolio) and LLSCX (Longleaf Partners Small-Cap Fund) are both Mid Cap Blend Equities funds. Over the past 10 years, IIRMX returned 11.62%/yr vs 5.72%/yr for LLSCX. Their correlation of 0.83 suggests significant overlap in exposure. IIRMX charges 0.40%/yr vs 0.95%/yr for LLSCX.

Performance

IIRMX vs. LLSCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Voya Russell Mid Cap Index Portfolio (IIRMX) and Longleaf Partners Small-Cap Fund (LLSCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IIRMX achieves a 16.99% return, which is significantly higher than LLSCX's -6.08% return. Over the past 10 years, IIRMX has outperformed LLSCX with an annualized return of 11.62%, while LLSCX has yielded a comparatively lower 5.72% annualized return.

IIRMX

• 1D: 0.68%
• 1M: 8.15%
• YTD: 16.99%
• 6M: 16.77%
• 1Y: 26.39%
• 3Y*: 18.64%
• 5Y*: 8.83%
• 10Y*: 11.62%

LLSCX

• 1D: -0.58%
• 1M: -3.05%
• YTD: -6.08%
• 6M: -5.80%
• 1Y: -1.64%
• 3Y*: 8.14%
• 5Y*: 0.52%
• 10Y*: 5.72%

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

IIRMX vs. LLSCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IIRMX Voya Russell Mid Cap Index Portfolio	16.99%	10.40%	14.78%	16.74%	-17.55%	21.79%	16.04%	29.16%	-9.30%	18.05%
LLSCX Longleaf Partners Small-Cap Fund	-6.08%	7.56%	9.69%	20.17%	-19.25%	11.18%	4.17%	27.74%	-6.52%	9.07%

Correlation

The correlation between IIRMX and LLSCX is 0.57, 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	0.57
Correlation (3Y) Calculated over the trailing 3-year period	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (10Y) Calculated over the trailing 10-year period	0.78
Correlation (All Time) Calculated using the full available price history since Mar 12, 2008	0.83

Over the past year, the correlation between IIRMX and LLSCX has dropped to 0.57 - well below their long-term average of 0.83, suggesting their price drivers have been diverging.

Return for Risk

IIRMX vs. LLSCX — Risk / Return Rank

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

IIRMX

IIRMX Risk / Return Rank: 48
IIRMX Sharpe Ratio Rank: 24
IIRMX Sortino Ratio Rank: 29
IIRMX Omega Ratio Rank: 44
IIRMX Calmar Ratio Rank: 71
IIRMX Martin Ratio Rank: 74

LLSCX

LLSCX Risk / Return Rank: 2
LLSCX Sharpe Ratio Rank: 2
LLSCX Sortino Ratio Rank: 2
LLSCX Omega Ratio Rank: 2
LLSCX Calmar Ratio Rank: 2
LLSCX Martin Ratio Rank: 2

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.

IIRMX vs. LLSCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Voya Russell Mid Cap Index Portfolio (IIRMX) and Longleaf Partners Small-Cap Fund (LLSCX). 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.

	IIRMX	LLSCX	Difference
Sharpe ratio: Return per unit of total volatility	1.40	-0.09	+1.49
Sortino ratio: Return per unit of downside risk	2.24	-0.04	+2.27
Omega ratio: Gain probability vs. loss probability	1.36	1.00	+0.37
Calmar ratio: Return relative to maximum drawdown	3.25	-0.10	+3.36
Martin ratio: Return relative to average drawdown	13.96	-0.26	+14.22
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IIRMX vs. LLSCX - Sharpe Ratio Comparison

The current IIRMX Sharpe Ratio is 1.40, which is higher than the LLSCX Sharpe Ratio of -0.09. The chart below compares the historical Sharpe Ratios of IIRMX and LLSCX, 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

	IIRMX	LLSCX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.40	-0.09	+1.49
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.45	0.03	+0.42
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.58	0.23	+0.35
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.51	-0.03

Drawdowns

IIRMX vs. LLSCX - Drawdown Comparison

The maximum IIRMX drawdown since its inception was -56.44%, smaller than the maximum LLSCX drawdown of -63.97%. Use the drawdown chart below to compare losses from any high point for IIRMX and LLSCX.

Drawdown Indicators

	IIRMX	LLSCX	Difference
Max Drawdown Largest peak-to-trough decline	-56.44%	-63.97%	+7.53%
Max Drawdown (1Y) Largest decline over 1 year	-9.61%	-11.30%	+1.69%
Max Drawdown (3Y) Largest decline over 3 years	-21.18%	-15.40%	-5.78%
Max Drawdown (5Y) Largest decline over 5 years	-26.26%	-28.37%	+2.11%
Max Drawdown (10Y) Largest decline over 10 years	-40.41%	-42.23%	+1.82%
Current Drawdown Current decline from peak	0.00%	-10.22%	+10.22%
Average Drawdown Average peak-to-trough decline	-7.88%	-8.90%	+1.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.17%	4.44%	-2.27%

Volatility

IIRMX vs. LLSCX - Volatility Comparison

Voya Russell Mid Cap Index Portfolio (IIRMX) has a higher volatility of 17.09% compared to Longleaf Partners Small-Cap Fund (LLSCX) at 3.31%. This indicates that IIRMX's price experiences larger fluctuations and is considered to be riskier than LLSCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IIRMX	LLSCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.09%	3.31%	+13.78%
Volatility (6M) Calculated over the trailing 6-month period	19.20%	8.52%	+10.68%
Volatility (1Y) Calculated over the trailing 1-year period	22.33%	12.75%	+9.58%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.33%	16.97%	+3.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.39%	24.58%	-4.19%

IIRMX vs. LLSCX - Expense Ratio Comparison

IIRMX has a 0.40% expense ratio, which is lower than LLSCX's 0.95% expense ratio.

Dividends

IIRMX vs. LLSCX - Dividend Comparison

IIRMX's dividend yield for the trailing twelve months is around 37.72%, more than LLSCX's 1.25% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IIRMX Voya Russell Mid Cap Index Portfolio	37.72%	13.19%	10.43%	11.78%	10.34%	10.34%	14.22%	20.78%	15.64%	8.09%	14.11%	10.13%
LLSCX Longleaf Partners Small-Cap Fund	1.25%	1.17%	0.11%	0.94%	1.20%	0.82%	5.85%	14.89%	18.13%	8.43%	18.01%	5.91%

Frequently Asked Questions

Can I hold both IIRMX and LLSCX in my portfolio?

IIRMX and LLSCX have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IIRMX or LLSCX?

IIRMX has higher volatility (17.09%) compared to LLSCX (3.31%). In terms of maximum drawdown, IIRMX dropped -56.44% vs LLSCX's -63.97%.

Which has better risk-adjusted returns?

IIRMX currently has the higher Sharpe Ratio (1.40 vs -0.09), 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.