IRSOX vs. PLTZX

Last updated Aug 1, 2026

IRSOX (Voya Target Retirement 2040 Fund) and PLTZX (Principal LifeTime 2060 Fund) are both Target Retirement Date funds. Over the past 10 years, IRSOX returned 10.71%/yr vs 11.27%/yr for PLTZX. Their 0.97 correlation means they have historically moved very closely together. IRSOX charges 0.23%/yr vs 0.01%/yr for PLTZX.

Performance

IRSOX vs. PLTZX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Voya Target Retirement 2040 Fund (IRSOX) and Principal LifeTime 2060 Fund (PLTZX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IRSOX achieves a 9.53% return, which is significantly higher than PLTZX's 8.71% return. Over the past 10 years, IRSOX has underperformed PLTZX with an annualized return of 10.71%, while PLTZX has yielded a comparatively higher 11.27% annualized return.

IRSOX

• 1D: 1.68%
• 1M: -0.65%
• 6M: 5.89%
• YTD: 9.53%
• 1Y: 20.16%
• 3Y*: 15.44%
• 5Y*: 8.62%
• 10Y*: 10.71%
• ALL TIME*: 10.21%

PLTZX

• 1D: 1.69%
• 1M: 0.44%
• 6M: 5.90%
• YTD: 8.71%
• 1Y: 18.01%
• 3Y*: 15.94%
• 5Y*: 8.69%
• 10Y*: 11.27%
• ALL TIME*: 10.45%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
IRSOX Voya Target Retirement 2040 Fund	$0.00	$0.00	$0.00
PLTZX Principal LifeTime 2060 Fund	$0.00	$0.00	$0.00

IRSOX vs. PLTZX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IRSOX Voya Target Retirement 2040 Fund	9.53%	19.10%	13.74%	19.25%	-18.43%	17.65%	16.93%	23.69%	-8.31%	20.15%
PLTZX Principal LifeTime 2060 Fund	8.71%	17.76%	16.89%	20.36%	-18.81%	18.12%	16.60%	27.54%	-9.24%	22.68%

Correlation

The correlation between IRSOX and PLTZX is 0.89, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.89
Correlation (3Y) Balances recent behavior with more history.	0.93
Correlation (5Y) Shows whether the relationship held over a longer period.	0.95
Correlation (10Y) Provides a long-term view across more market conditions.	0.96
Correlation (All Time) Calculated using the full available price history since Mar 4, 2013	0.97

The correlation between IRSOX and PLTZX has been stable across timeframes, ranging from 0.89 to 0.97 - a consistent structural relationship.

Return for Risk

IRSOX vs. PLTZX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

IRSOX

IRSOX Risk / Return Rank: 75
IRSOX Sharpe Ratio Rank: 72
IRSOX Sortino Ratio Rank: 73
IRSOX Omega Ratio Rank: 70
IRSOX Calmar Ratio Rank: 73
IRSOX Martin Ratio Rank: 84

PLTZX

PLTZX Risk / Return Rank: 49
PLTZX Sharpe Ratio Rank: 44
PLTZX Sortino Ratio Rank: 44
PLTZX Omega Ratio Rank: 43
PLTZX Calmar Ratio Rank: 50
PLTZX Martin Ratio Rank: 62

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

IRSOX vs. PLTZX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Voya Target Retirement 2040 Fund (IRSOX) and Principal LifeTime 2060 Fund (PLTZX). 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.

	IRSOX	PLTZX	Difference
Sharpe ratio: Return per unit of total volatility	1.72	1.25	+0.48
Sortino ratio: Return per unit of downside risk	2.51	1.79	+0.72
Omega ratio: Gain probability vs. loss probability	1.31	1.23	+0.09
Calmar ratio: Return relative to maximum drawdown	2.43	1.84	+0.59
Martin ratio: Return relative to average drawdown	10.76	7.88	+2.88

IRSOX vs. PLTZX - Sharpe Ratio Comparison

The current IRSOX Sharpe Ratio is 1.72, which is higher than the PLTZX Sharpe Ratio of 1.25. The chart below compares the historical Sharpe Ratios of IRSOX and PLTZX, 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

IRSOX vs. PLTZX - Drawdown Comparison

The maximum IRSOX drawdown since its inception was -31.25%, smaller than the maximum PLTZX drawdown of -34.01%. Use the drawdown chart below to compare losses from any high point for IRSOX and PLTZX.

Drawdown Indicators

	IRSOX	PLTZX	Difference
Max Drawdown Largest peak-to-trough decline	-31.25%	-34.01%	+2.76%
Max Drawdown (1Y) Largest decline over 1 year	-8.38%	-8.70%	+0.32%
Max Drawdown (3Y) Largest decline over 3 years	-13.84%	-15.73%	+1.89%
Max Drawdown (5Y) Largest decline over 5 years	-25.24%	-26.79%	+1.55%
Max Drawdown (10Y) Largest decline over 10 years	-31.25%	-34.01%	+2.76%
Current Drawdown Current decline from peak	-1.92%	-0.87%	-1.05%
Average Drawdown Average peak-to-trough decline	-4.25%	-4.59%	+0.34%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.83%	2.03%	-0.20%

Volatility

IRSOX vs. PLTZX - Volatility Comparison

Voya Target Retirement 2040 Fund (IRSOX) and Principal LifeTime 2060 Fund (PLTZX) have volatilities of 3.44% and 3.45%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IRSOX	PLTZX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.44%	3.45%	-0.01%
Volatility (6M) Calculated over the trailing 6-month period	9.61%	10.61%	-1.00%
Volatility (1Y) Calculated over the trailing 1-year period	11.83%	12.83%	-1.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.00%	15.59%	-1.59%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.77%	15.95%	-1.18%

IRSOX vs. PLTZX - Expense Ratio Comparison

IRSOX has a 0.23% expense ratio, which is higher than PLTZX's 0.01% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

IRSOX vs. PLTZX - Dividend Comparison

IRSOX's dividend yield for the trailing twelve months is around 12.51%, more than PLTZX's 7.67% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IRSOX Voya Target Retirement 2040 Fund	12.51%	13.71%	2.25%	2.13%	6.01%	17.52%	3.71%	4.14%	5.84%	5.86%	1.98%	0.41%
PLTZX Principal LifeTime 2060 Fund	7.67%	8.33%	7.85%	4.12%	8.44%	5.29%	3.60%	5.86%	5.75%	2.73%	3.48%	3.29%

Frequently Asked Questions

Can I hold both IRSOX and PLTZX in my portfolio?

IRSOX and PLTZX have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IRSOX or PLTZX?

PLTZX has higher volatility (3.45%) compared to IRSOX (3.44%). In terms of maximum drawdown, IRSOX dropped -31.25% vs PLTZX's -34.01%.

Which has better risk-adjusted returns?

IRSOX currently has the higher Sharpe Ratio (1.72 vs 1.25), 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.