IWIRX vs. VOO

Last updated Jun 3, 2026

IWIRX (Guinness Atkinson Global Innovators Fund) and VOO (Vanguard S&P 500 ETF) are both funds - IWIRX is a Large Cap Growth Equities fund managed by Guinness Atkinson, while VOO is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, IWIRX returned 13.43%/yr vs 15.65%/yr for VOO. Their correlation of 0.90 suggests significant overlap in exposure. IWIRX charges 1.24%/yr vs 0.03%/yr for VOO.

Performance

IWIRX vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Guinness Atkinson Global Innovators Fund (IWIRX) 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, IWIRX achieves a 4.90% return, which is significantly lower than VOO's 11.69% return. Over the past 10 years, IWIRX has underperformed VOO with an annualized return of 13.43%, while VOO has yielded a comparatively higher 15.65% annualized return.

IWIRX

• 1D: 0.70%
• 1M: 3.07%
• YTD: 4.90%
• 6M: 5.43%
• 1Y: 20.14%
• 3Y*: 19.95%
• 5Y*: 7.03%
• 10Y*: 13.43%

VOO

• 1D: 0.14%
• 1M: 5.39%
• YTD: 11.69%
• 6M: 12.11%
• 1Y: 29.68%
• 3Y*: 22.73%
• 5Y*: 14.26%
• 10Y*: 15.65%

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

IWIRX vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IWIRX Guinness Atkinson Global Innovators Fund	4.90%	19.93%	19.47%	39.36%	-29.72%	4.85%	36.21%	37.05%	-16.90%	34.77%
VOO Vanguard S&P 500 ETF	11.69%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between IWIRX and VOO is 0.89, 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	0.89
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (10Y) Calculated over the trailing 10-year period	0.89
Correlation (All Time) Calculated using the full available price history since Sep 10, 2010	0.90

The correlation between IWIRX and VOO has been stable across timeframes, ranging from 0.89 to 0.91 - a consistent structural relationship.

Return for Risk

IWIRX vs. VOO — Risk / Return Rank

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

IWIRX

IWIRX Risk / Return Rank: 21
IWIRX Sharpe Ratio Rank: 21
IWIRX Sortino Ratio Rank: 20
IWIRX Omega Ratio Rank: 19
IWIRX Calmar Ratio Rank: 19
IWIRX Martin Ratio Rank: 24

VOO

VOO Risk / Return Rank: 75
VOO Sharpe Ratio Rank: 77
VOO Sortino Ratio Rank: 75
VOO Omega Ratio Rank: 76
VOO Calmar Ratio Rank: 68
VOO 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.

IWIRX vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Guinness Atkinson Global Innovators Fund (IWIRX) 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.

	IWIRX	VOO	Difference
Sharpe ratio Return per unit of total volatility	1.35	2.53	-1.18
Sortino ratio Return per unit of downside risk	1.90	3.43	-1.54
Omega ratio Gain probability vs. loss probability	1.23	1.46	-0.23
Calmar ratio Return relative to maximum drawdown	1.64	3.42	-1.77
Martin ratio Return relative to average drawdown	6.26	15.95	-9.68
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IWIRX vs. VOO - Sharpe Ratio Comparison

The current IWIRX Sharpe Ratio is 1.35, which is lower than the VOO Sharpe Ratio of 2.53. The chart below compares the historical Sharpe Ratios of IWIRX 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.

Sharpe Ratios by Period

	IWIRX	VOO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.35	2.53	-1.18
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.29	0.85	-0.56
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.59	0.87	-0.28
Sharpe Ratio (All Time) Calculated using the full available price history	0.39	0.89	-0.50

Drawdowns

IWIRX vs. VOO - Drawdown Comparison

The maximum IWIRX drawdown since its inception was -70.99%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for IWIRX and VOO.

Drawdown Indicators

	IWIRX	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-70.99%	-33.99%	-37.00%
Max Drawdown (1Y) Largest decline over 1 year	-12.03%	-8.90%	-3.13%
Max Drawdown (3Y) Largest decline over 3 years	-27.26%	-18.69%	-8.57%
Max Drawdown (5Y) Largest decline over 5 years	-44.99%	-24.52%	-20.47%
Max Drawdown (10Y) Largest decline over 10 years	-44.99%	-33.99%	-11.00%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-21.32%	-3.69%	-17.63%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.16%	1.91%	+1.25%

Volatility

IWIRX vs. VOO - Volatility Comparison

Guinness Atkinson Global Innovators Fund (IWIRX) has a higher volatility of 3.58% compared to Vanguard S&P 500 ETF (VOO) at 2.74%. This indicates that IWIRX'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

	IWIRX	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.58%	2.74%	+0.84%
Volatility (6M) Calculated over the trailing 6-month period	11.76%	8.88%	+2.88%
Volatility (1Y) Calculated over the trailing 1-year period	15.26%	11.78%	+3.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.36%	16.81%	+7.55%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.80%	18.01%	+4.79%

IWIRX vs. VOO - Expense Ratio Comparison

IWIRX has a 1.24% expense ratio, which is higher than VOO's 0.03% expense ratio.

Dividends

IWIRX vs. VOO - Dividend Comparison

IWIRX's dividend yield for the trailing twelve months is around 16.01%, more than VOO's 1.02% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IWIRX Guinness Atkinson Global Innovators Fund	16.01%	16.79%	12.54%	3.85%	12.52%	2.58%	2.65%	4.54%	7.63%	2.27%	0.92%	4.77%
VOO Vanguard S&P 500 ETF	1.02%	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 IWIRX and VOO in my portfolio?

IWIRX and VOO 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, IWIRX or VOO?

IWIRX has higher volatility (3.58%) compared to VOO (2.74%). In terms of maximum drawdown, IWIRX dropped -70.99% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (2.53 vs 1.35), 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.