VCSOX vs. THOIX

Last updated Jun 23, 2026

VCSOX (VALIC Company I International Socially Responsible Fund) and THOIX (Thornburg Global Opportunities Fund) are both Foreign Large Cap Equities funds. Over the past 10 years, VCSOX returned 9.71%/yr vs 13.51%/yr for THOIX. Their correlation of 0.82 suggests significant overlap in exposure. VCSOX charges 0.64%/yr vs 0.99%/yr for THOIX.

Performance

VCSOX vs. THOIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in VALIC Company I International Socially Responsible Fund (VCSOX) and Thornburg Global Opportunities Fund (THOIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VCSOX achieves a 11.17% return, which is significantly lower than THOIX's 11.81% return. Over the past 10 years, VCSOX has underperformed THOIX with an annualized return of 9.71%, while THOIX has yielded a comparatively higher 13.51% annualized return.

VCSOX

• 1D: 0.77%
• 1M: 2.12%
• YTD: 11.17%
• 6M: 11.36%
• 1Y: 24.11%
• 3Y*: 13.61%
• 5Y*: 7.62%
• 10Y*: 9.71%

THOIX

• 1D: 0.07%
• 1M: -0.21%
• YTD: 11.81%
• 6M: 13.02%
• 1Y: 36.69%
• 3Y*: 23.89%
• 5Y*: 14.18%
• 10Y*: 13.51%

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

VCSOX vs. THOIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VCSOX VALIC Company I International Socially Responsible Fund	11.17%	22.82%	2.99%	18.28%	-16.24%	12.54%	8.52%	25.96%	-8.44%	22.72%
THOIX Thornburg Global Opportunities Fund	11.81%	41.04%	13.08%	16.26%	-10.12%	14.72%	22.50%	28.74%	-20.72%	22.03%

Correlation

The correlation between VCSOX and THOIX is 0.63, 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	0.63
Correlation (3Y) Calculated over the trailing 3-year period	0.71
Correlation (5Y) Calculated over the trailing 5-year period	0.77
Correlation (10Y) Calculated over the trailing 10-year period	0.79
Correlation (All Time) Calculated using the full available price history since Jan 3, 2007	0.82

The correlation between VCSOX and THOIX shifts across timeframes, from 0.63 (1 year) to 0.82 (all time), reflecting how their relationship changes across market environments.

Return for Risk

VCSOX vs. THOIX — Risk / Return Rank

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

VCSOX

VCSOX Risk / Return Rank: 33
VCSOX Sharpe Ratio Rank: 34
VCSOX Sortino Ratio Rank: 35
VCSOX Omega Ratio Rank: 34
VCSOX Calmar Ratio Rank: 31
VCSOX Martin Ratio Rank: 34

THOIX

THOIX Risk / Return Rank: 91
THOIX Sharpe Ratio Rank: 95
THOIX Sortino Ratio Rank: 90
THOIX Omega Ratio Rank: 89
THOIX Calmar Ratio Rank: 88
THOIX Martin Ratio Rank: 92

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.

VCSOX vs. THOIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for VALIC Company I International Socially Responsible Fund (VCSOX) and Thornburg Global Opportunities Fund (THOIX). 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.

	VCSOX	THOIX	Difference
Sharpe ratio: Return per unit of total volatility	1.56	3.09	-1.53
Sortino ratio: Return per unit of downside risk	2.30	4.06	-1.76
Omega ratio: Gain probability vs. loss probability	1.28	1.59	-0.31
Calmar ratio: Return relative to maximum drawdown	1.96	4.14	-2.18
Martin ratio: Return relative to average drawdown	7.24	17.33	-10.09

VCSOX vs. THOIX - Sharpe Ratio Comparison

The current VCSOX Sharpe Ratio is 1.56, which is lower than the THOIX Sharpe Ratio of 3.09. The chart below compares the historical Sharpe Ratios of VCSOX and THOIX, 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

VCSOX vs. THOIX - Drawdown Comparison

The maximum VCSOX drawdown since its inception was -71.49%, which is greater than THOIX's maximum drawdown of -64.58%. Use the drawdown chart below to compare losses from any high point for VCSOX and THOIX.

Drawdown Indicators

	VCSOX	THOIX	Difference
Max Drawdown Largest peak-to-trough decline	-71.49%	-64.58%	-6.91%
Max Drawdown (1Y) Largest decline over 1 year	-11.85%	-8.62%	-3.23%
Max Drawdown (3Y) Largest decline over 3 years	-18.48%	-13.71%	-4.77%
Max Drawdown (5Y) Largest decline over 5 years	-31.15%	-30.18%	-0.97%
Max Drawdown (10Y) Largest decline over 10 years	-33.08%	-35.22%	+2.14%
Current Drawdown Current decline from peak	0.00%	-2.54%	+2.54%
Average Drawdown Average peak-to-trough decline	-20.52%	-11.44%	-9.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.20%	2.06%	+1.14%

Volatility

VCSOX vs. THOIX - Volatility Comparison

VALIC Company I International Socially Responsible Fund (VCSOX) has a higher volatility of 4.92% compared to Thornburg Global Opportunities Fund (THOIX) at 4.31%. This indicates that VCSOX's price experiences larger fluctuations and is considered to be riskier than THOIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VCSOX	THOIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.92%	4.31%	+0.61%
Volatility (6M) Calculated over the trailing 6-month period	12.61%	9.14%	+3.47%
Volatility (1Y) Calculated over the trailing 1-year period	14.89%	11.56%	+3.33%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.33%	16.48%	-0.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.55%	17.54%	-0.99%

VCSOX vs. THOIX - Expense Ratio Comparison

VCSOX has a 0.64% expense ratio, which is lower than THOIX's 0.99% expense ratio.

Dividends

VCSOX vs. THOIX - Dividend Comparison

VCSOX's dividend yield for the trailing twelve months is around 5.67%, less than THOIX's 5.74% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
THOIX Thornburg Global Opportunities Fund	5.74%	6.42%	5.70%	5.70%	4.00%	14.39%	6.70%	1.47%	2.65%	0.67%	0.82%	0.59%
VCSOX VALIC Company I International Socially Responsible Fund	5.67%	0.00%	1.78%	3.03%	8.42%	22.36%	4.64%	1.62%	1.83%	1.48%	0.00%	0.00%

Frequently Asked Questions

Can I hold both VCSOX and THOIX in my portfolio?

VCSOX and THOIX have a correlation of 0.63, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VCSOX or THOIX?

VCSOX has higher volatility (4.92%) compared to THOIX (4.31%). In terms of maximum drawdown, VCSOX dropped -71.49% vs THOIX's -64.58%.

Which has better risk-adjusted returns?

THOIX currently has the higher Sharpe Ratio (3.09 vs 1.56), 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.