GMTZX vs. IRSOX

Last updated Aug 1, 2026

GMTZX (GuideStone Funds MyDestination 2015 Fund) and IRSOX (Voya Target Retirement 2040 Fund) are both Target Retirement Date funds. Over the past 10 years, GMTZX returned 5.58%/yr vs 10.71%/yr for IRSOX. Their correlation of 0.93 means they have usually moved in the same direction. GMTZX charges 0.36%/yr vs 0.23%/yr for IRSOX.

Performance

GMTZX vs. IRSOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in GuideStone Funds MyDestination 2015 Fund (GMTZX) and Voya Target Retirement 2040 Fund (IRSOX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, GMTZX achieves a 4.10% return, which is significantly lower than IRSOX's 9.53% return. Over the past 10 years, GMTZX has underperformed IRSOX with an annualized return of 5.58%, while IRSOX has yielded a comparatively higher 10.71% annualized return.

GMTZX

• 1D: 0.85%
• 1M: -0.56%
• 6M: 2.79%
• YTD: 4.10%
• 1Y: 9.69%
• 3Y*: 8.80%
• 5Y*: 4.09%
• 10Y*: 5.58%
• ALL TIME*: 4.80%

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%

*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)
GMTZX GuideStone Funds MyDestination 2015 Fund	$0.00	$0.00	$0.00
IRSOX Voya Target Retirement 2040 Fund	$0.00	$0.00	$0.00

GMTZX vs. IRSOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GMTZX GuideStone Funds MyDestination 2015 Fund	4.10%	11.55%	7.50%	10.86%	-13.11%	6.74%	9.16%	15.10%	-3.68%	11.68%
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%

Correlation

The correlation between GMTZX and IRSOX is 0.87, 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.	0.87
Correlation (3Y) Balances recent behavior with more history.	0.90
Correlation (5Y) Shows whether the relationship held over a longer period.	0.91
Correlation (10Y) Provides a long-term view across more market conditions.	0.92
Correlation (All Time) Calculated using the full available price history since Dec 24, 2012	0.93

The correlation between GMTZX and IRSOX has been stable across timeframes, ranging from 0.87 to 0.93 - a consistent structural relationship.

Return for Risk

GMTZX vs. IRSOX — Risk / Return Rank

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

GMTZX

GMTZX Risk / Return Rank: 57
GMTZX Sharpe Ratio Rank: 57
GMTZX Sortino Ratio Rank: 59
GMTZX Omega Ratio Rank: 60
GMTZX Calmar Ratio Rank: 48
GMTZX Martin Ratio Rank: 62

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

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.

GMTZX vs. IRSOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for GuideStone Funds MyDestination 2015 Fund (GMTZX) and Voya Target Retirement 2040 Fund (IRSOX). 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.

	GMTZX	IRSOX	Difference
Sharpe ratio: Return per unit of total volatility	1.50	1.72	-0.22
Sortino ratio: Return per unit of downside risk	2.20	2.51	-0.32
Omega ratio: Gain probability vs. loss probability	1.29	1.31	-0.03
Calmar ratio: Return relative to maximum drawdown	1.90	2.43	-0.53
Martin ratio: Return relative to average drawdown	8.28	10.76	-2.48

GMTZX vs. IRSOX - Sharpe Ratio Comparison

The current GMTZX Sharpe Ratio is 1.50, which is comparable to the IRSOX Sharpe Ratio of 1.72. The chart below compares the historical Sharpe Ratios of GMTZX and IRSOX, 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

GMTZX vs. IRSOX - Drawdown Comparison

The maximum GMTZX drawdown since its inception was -43.84%, which is greater than IRSOX's maximum drawdown of -31.25%. Use the drawdown chart below to compare losses from any high point for GMTZX and IRSOX.

Drawdown Indicators

	GMTZX	IRSOX	Difference
Max Drawdown Largest peak-to-trough decline	-43.84%	-31.25%	-12.59%
Max Drawdown (1Y) Largest decline over 1 year	-4.95%	-8.38%	+3.43%
Max Drawdown (3Y) Largest decline over 3 years	-6.32%	-13.84%	+7.52%
Max Drawdown (5Y) Largest decline over 5 years	-17.76%	-25.24%	+7.48%
Max Drawdown (10Y) Largest decline over 10 years	-17.83%	-31.25%	+13.42%
Current Drawdown Current decline from peak	-1.02%	-1.92%	+0.90%
Average Drawdown Average peak-to-trough decline	-4.87%	-4.25%	-0.62%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.13%	1.83%	-0.70%

Volatility

GMTZX vs. IRSOX - Volatility Comparison

The current volatility for GuideStone Funds MyDestination 2015 Fund (GMTZX) is 1.86%, while Voya Target Retirement 2040 Fund (IRSOX) has a volatility of 3.44%. This indicates that GMTZX experiences smaller price fluctuations and is considered to be less risky than IRSOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GMTZX	IRSOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.86%	3.44%	-1.58%
Volatility (6M) Calculated over the trailing 6-month period	5.35%	9.61%	-4.26%
Volatility (1Y) Calculated over the trailing 1-year period	6.26%	11.83%	-5.57%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.31%	14.00%	-6.69%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.29%	14.77%	-7.48%

GMTZX vs. IRSOX - Expense Ratio Comparison

GMTZX has a 0.36% expense ratio, which is higher than IRSOX's 0.23% expense ratio.

Dividends

GMTZX vs. IRSOX - Dividend Comparison

GMTZX's dividend yield for the trailing twelve months is around 5.43%, less than IRSOX's 12.51% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GMTZX GuideStone Funds MyDestination 2015 Fund	5.43%	5.66%	6.34%	3.77%	7.27%	5.35%	3.64%	4.01%	6.38%	2.62%	1.45%	15.43%
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%

Frequently Asked Questions

Can I hold both GMTZX and IRSOX in my portfolio?

GMTZX and IRSOX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, GMTZX or IRSOX?

IRSOX has higher volatility (3.44%) compared to GMTZX (1.86%). In terms of maximum drawdown, GMTZX dropped -43.84% vs IRSOX's -31.25%.

Which has better risk-adjusted returns?

IRSOX currently has the higher Sharpe Ratio (1.72 vs 1.50), 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.