PAHRX vs. ISOLX

Last updated Jun 6, 2026

PAHRX (T. Rowe Price Target 2015 Fund) and ISOLX (Voya Target In-Retirement Fund) are both Target Retirement Date funds. Over the past 10 years, PAHRX returned 5.69%/yr vs 5.60%/yr for ISOLX. Their correlation of 0.91 suggests significant overlap in exposure. PAHRX charges 0.72%/yr vs 0.20%/yr for ISOLX.

Performance

PAHRX vs. ISOLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Target 2015 Fund (PAHRX) and Voya Target In-Retirement Fund (ISOLX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with PAHRX having a 4.78% return and ISOLX slightly higher at 4.85%. Both investments have delivered pretty close results over the past 10 years, with PAHRX having a 5.69% annualized return and ISOLX not far behind at 5.60%.

PAHRX

• 1D: 0.16%
• 1M: 0.66%
• YTD: 4.78%
• 6M: 5.00%
• 1Y: 11.79%
• 3Y*: 9.64%
• 5Y*: 4.09%
• 10Y*: 5.69%

ISOLX

• 1D: 0.00%
• 1M: 0.59%
• YTD: 4.85%
• 6M: 5.18%
• 1Y: 13.30%
• 3Y*: 10.07%
• 5Y*: 4.13%
• 10Y*: 5.60%

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

PAHRX vs. ISOLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PAHRX T. Rowe Price Target 2015 Fund	4.78%	10.49%	7.36%	10.67%	-13.16%	7.63%	11.18%	14.95%	-3.67%	9.25%
ISOLX Voya Target In-Retirement Fund	4.85%	11.96%	7.03%	11.13%	-14.97%	6.53%	10.46%	14.40%	-2.96%	9.49%

Correlation

The correlation between PAHRX and ISOLX is 0.88, 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	0.88
Correlation (3Y) Calculated over the trailing 3-year period	0.88
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (10Y) Calculated over the trailing 10-year period	0.90
Correlation (All Time) Calculated using the full available price history since Aug 23, 2013	0.91

The correlation between PAHRX and ISOLX has been stable across timeframes, ranging from 0.88 to 0.91 - a consistent structural relationship.

Return for Risk

PAHRX vs. ISOLX — Risk / Return Rank

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

PAHRX

PAHRX Risk / Return Rank: 67
PAHRX Sharpe Ratio Rank: 68
PAHRX Sortino Ratio Rank: 73
PAHRX Omega Ratio Rank: 75
PAHRX Calmar Ratio Rank: 56
PAHRX Martin Ratio Rank: 65

ISOLX

ISOLX Risk / Return Rank: 79
ISOLX Sharpe Ratio Rank: 80
ISOLX Sortino Ratio Rank: 84
ISOLX Omega Ratio Rank: 79
ISOLX Calmar Ratio Rank: 71
ISOLX Martin Ratio Rank: 80

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.

PAHRX vs. ISOLX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Target 2015 Fund (PAHRX) and Voya Target In-Retirement Fund (ISOLX). 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.

	PAHRX	ISOLX	Difference
Sharpe ratio: Return per unit of total volatility	2.34	2.55	-0.22
Sortino ratio: Return per unit of downside risk	3.45	3.94	-0.49
Omega ratio: Gain probability vs. loss probability	1.47	1.50	-0.03
Calmar ratio: Return relative to maximum drawdown	2.77	3.15	-0.38
Martin ratio: Return relative to average drawdown	12.20	14.38	-2.17
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PAHRX vs. ISOLX - Sharpe Ratio Comparison

The current PAHRX Sharpe Ratio is 2.34, which is comparable to the ISOLX Sharpe Ratio of 2.55. The chart below compares the historical Sharpe Ratios of PAHRX and ISOLX, 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

	PAHRX	ISOLX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.34	2.55	-0.22
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.62	0.60	+0.02
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.83	0.86	-0.03
Sharpe Ratio (All Time) Calculated using the full available price history	0.82	0.90	-0.08

Drawdowns

PAHRX vs. ISOLX - Drawdown Comparison

The maximum PAHRX drawdown since its inception was -18.73%, roughly equal to the maximum ISOLX drawdown of -19.02%. Use the drawdown chart below to compare losses from any high point for PAHRX and ISOLX.

Drawdown Indicators

	PAHRX	ISOLX	Difference
Max Drawdown Largest peak-to-trough decline	-18.73%	-19.02%	+0.29%
Max Drawdown (1Y) Largest decline over 1 year	-4.39%	-4.54%	+0.15%
Max Drawdown (3Y) Largest decline over 3 years	-6.06%	-6.37%	+0.31%
Max Drawdown (5Y) Largest decline over 5 years	-17.91%	-19.02%	+1.11%
Max Drawdown (10Y) Largest decline over 10 years	-18.73%	-19.02%	+0.29%
Current Drawdown Current decline from peak	-0.16%	-0.42%	+0.26%
Average Drawdown Average peak-to-trough decline	-2.91%	-2.82%	-0.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.98%	0.96%	+0.02%

Volatility

PAHRX vs. ISOLX - Volatility Comparison

The current volatility for T. Rowe Price Target 2015 Fund (PAHRX) is 1.65%, while Voya Target In-Retirement Fund (ISOLX) has a volatility of 2.03%. This indicates that PAHRX experiences smaller price fluctuations and is considered to be less risky than ISOLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PAHRX	ISOLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.65%	2.03%	-0.38%
Volatility (6M) Calculated over the trailing 6-month period	4.29%	4.52%	-0.23%
Volatility (1Y) Calculated over the trailing 1-year period	5.21%	5.61%	-0.40%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.66%	7.02%	-0.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.88%	6.57%	+0.31%

PAHRX vs. ISOLX - Expense Ratio Comparison

PAHRX has a 0.72% expense ratio, which is higher than ISOLX's 0.20% expense ratio.

Dividends

PAHRX vs. ISOLX - Dividend Comparison

PAHRX's dividend yield for the trailing twelve months is around 5.39%, more than ISOLX's 3.71% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ISOLX Voya Target In-Retirement Fund	3.71%	3.89%	2.37%	3.10%	3.50%	10.09%	3.54%	6.63%	3.53%	4.60%	2.06%	0.30%
PAHRX T. Rowe Price Target 2015 Fund	5.39%	5.65%	5.01%	3.49%	8.61%	6.14%	5.78%	2.99%	4.45%	1.88%	0.83%	0.95%

Frequently Asked Questions

Can I hold both PAHRX and ISOLX in my portfolio?

PAHRX and ISOLX have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PAHRX or ISOLX?

ISOLX has higher volatility (2.03%) compared to PAHRX (1.65%). In terms of maximum drawdown, PAHRX dropped -18.73% vs ISOLX's -19.02%.

Which has better risk-adjusted returns?

ISOLX currently has the higher Sharpe Ratio (2.55 vs 2.34), 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.