IJSSX vs. VOO

Last updated Jun 23, 2026

IJSSX (VY JPMorgan Small Cap Core Equity Portfolio) and VOO (Vanguard S&P 500 ETF) are both funds - IJSSX is a Small Cap Blend Equities fund managed by Voya, while VOO is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, IJSSX returned 12.08%/yr vs 15.77%/yr for VOO. Their correlation of 0.83 suggests significant overlap in exposure. IJSSX charges 1.11%/yr vs 0.03%/yr for VOO.

Performance

IJSSX vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in VY JPMorgan Small Cap Core Equity Portfolio (IJSSX) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IJSSX achieves a 15.81% return, which is significantly higher than VOO's 9.75% return. Over the past 10 years, IJSSX has underperformed VOO with an annualized return of 12.08%, while VOO has yielded a comparatively higher 15.77% annualized return.

IJSSX

• 1D: 1.90%
• 1M: 3.61%
• YTD: 15.81%
• 6M: 12.75%
• 1Y: 27.13%
• 3Y*: 12.49%
• 5Y*: 5.23%
• 10Y*: 12.08%

VOO

• 1D: -0.29%
• 1M: 0.08%
• YTD: 9.75%
• 6M: 9.30%
• 1Y: 26.77%
• 3Y*: 21.36%
• 5Y*: 13.58%
• 10Y*: 15.77%

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

IJSSX vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IJSSX VY JPMorgan Small Cap Core Equity Portfolio	15.81%	3.33%	10.74%	12.31%	-17.82%	18.21%	16.30%	54.14%	-10.86%	15.57%
VOO Vanguard S&P 500 ETF	9.75%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between IJSSX and VOO is 0.67, 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	0.67
Correlation (3Y) Calculated over the trailing 3-year period	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.78
Correlation (10Y) Calculated over the trailing 10-year period	0.79
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	0.83

The correlation between IJSSX and VOO shifts across timeframes, from 0.67 (1 year) to 0.83 (all time), reflecting how their relationship changes across market environments.

Return for Risk

IJSSX vs. VOO — Risk / Return Rank

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

IJSSX

IJSSX Risk / Return Rank: 42
IJSSX Sharpe Ratio Rank: 38
IJSSX Sortino Ratio Rank: 39
IJSSX Omega Ratio Rank: 32
IJSSX Calmar Ratio Rank: 54
IJSSX Martin Ratio Rank: 47

VOO

VOO Risk / Return Rank: 68
VOO Sharpe Ratio Rank: 70
VOO Sortino Ratio Rank: 67
VOO Omega Ratio Rank: 69
VOO Calmar Ratio Rank: 63
VOO Martin Ratio Rank: 74

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.

IJSSX vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for VY JPMorgan Small Cap Core Equity Portfolio (IJSSX) and Vanguard S&P 500 ETF (VOO). 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.

	IJSSX	VOO	Difference
Sharpe ratio: Return per unit of total volatility	1.66	2.17	-0.51
Sortino ratio: Return per unit of downside risk	2.40	2.93	-0.53
Omega ratio: Gain probability vs. loss probability	1.28	1.39	-0.12
Calmar ratio: Return relative to maximum drawdown	2.69	3.02	-0.33
Martin ratio: Return relative to average drawdown	9.15	13.58	-4.43

IJSSX vs. VOO - Sharpe Ratio Comparison

The current IJSSX Sharpe Ratio is 1.66, which is comparable to the VOO Sharpe Ratio of 2.17. The chart below compares the historical Sharpe Ratios of IJSSX and VOO, 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

IJSSX vs. VOO - Drawdown Comparison

The maximum IJSSX drawdown since its inception was -55.02%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for IJSSX and VOO.

Drawdown Indicators

	IJSSX	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-55.02%	-33.99%	-21.03%
Max Drawdown (1Y) Largest decline over 1 year	-11.31%	-8.90%	-2.41%
Max Drawdown (3Y) Largest decline over 3 years	-26.96%	-18.69%	-8.27%
Max Drawdown (5Y) Largest decline over 5 years	-28.04%	-24.52%	-3.52%
Max Drawdown (10Y) Largest decline over 10 years	-42.85%	-33.99%	-8.86%
Current Drawdown Current decline from peak	0.00%	-1.74%	+1.74%
Average Drawdown Average peak-to-trough decline	-9.33%	-3.68%	-5.65%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.19%	1.98%	+1.21%

Volatility

IJSSX vs. VOO - Volatility Comparison

VY JPMorgan Small Cap Core Equity Portfolio (IJSSX) has a higher volatility of 5.72% compared to Vanguard S&P 500 ETF (VOO) at 4.60%. This indicates that IJSSX's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IJSSX	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.72%	4.60%	+1.12%
Volatility (6M) Calculated over the trailing 6-month period	13.33%	9.73%	+3.60%
Volatility (1Y) Calculated over the trailing 1-year period	18.27%	12.39%	+5.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.43%	16.90%	+4.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.48%	18.05%	+5.43%

IJSSX vs. VOO - Expense Ratio Comparison

IJSSX has a 1.11% expense ratio, which is higher than VOO's 0.03% expense ratio.

Dividends

IJSSX vs. VOO - Dividend Comparison

IJSSX's dividend yield for the trailing twelve months is around 12.64%, more than VOO's 1.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IJSSX VY JPMorgan Small Cap Core Equity Portfolio	12.64%	14.64%	0.28%	6.70%	23.23%	5.05%	0.00%	48.41%	15.74%	5.67%	8.73%	14.18%
VOO Vanguard S&P 500 ETF	1.04%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both IJSSX and VOO in my portfolio?

IJSSX and VOO have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IJSSX or VOO?

IJSSX has higher volatility (5.72%) compared to VOO (4.60%). In terms of maximum drawdown, IJSSX dropped -55.02% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (2.17 vs 1.66), 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.