VOO vs. AIAI.L

Last updated Jun 6, 2026

VOO (Vanguard S&P 500 ETF) and AIAI.L (L&G Artificial Intelligence UCITS ETF) are both exchange-traded funds - VOO is a S&P 500 fund tracking the S&P 500 Index, while AIAI.L is a Technology Equities fund tracking the MSCI World/Information Tech NR USD. Both are passively managed. Over the past 5 years, VOO returned 13.39%/yr vs 18.10%/yr for AIAI.L. A 0.50 correlation means they provide meaningful diversification when combined. VOO charges 0.03%/yr vs 0.49%/yr for AIAI.L.

Performance

VOO vs. AIAI.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard S&P 500 ETF (VOO) and L&G Artificial Intelligence UCITS ETF (AIAI.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VOO achieves a 8.45% return, which is significantly lower than AIAI.L's 42.35% return.

VOO

• 1D: -2.59%
• 1M: 0.50%
• YTD: 8.45%
• 6M: 8.18%
• 1Y: 25.87%
• 3Y*: 21.52%
• 5Y*: 13.39%
• 10Y*: 15.23%

AIAI.L

• 1D: -1.83%
• 1M: 18.80%
• YTD: 42.35%
• 6M: 39.03%
• 1Y: 75.99%
• 3Y*: 38.01%
• 5Y*: 18.10%
• 10Y*: —

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

VOO vs. AIAI.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
VOO Vanguard S&P 500 ETF	8.45%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	9.70%
AIAI.L L&G Artificial Intelligence UCITS ETF	42.35%	30.30%	18.45%	59.58%	-40.29%	9.81%	68.60%	3.43%

Correlation

The correlation between VOO and AIAI.L is 0.61, 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	0.61
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (5Y) Calculated over the trailing 5-year period	0.52
Correlation (All Time) Calculated using the full available price history since Jul 3, 2019	0.50

The correlation between VOO and AIAI.L shifts across timeframes, from 0.50 (all time) to 0.61 (1 year), reflecting how their relationship changes across market environments.

VOO vs. AIAI.L - Sectors Allocation Comparison

Sectors	VOO	AIAI.L
Technology	35.7%	71.5%
Financial Services	11.6%	1.3%
Communication Services	11.3%	10.3%
Consumer Cyclical	10.2%	9.2%
Healthcare	8.5%	5.7%
Industrials	8.3%	1.1%
Consumer Defensive	4.9%	-
Energy	3.5%	-
Utilities	2.4%	-
Real Estate	1.9%	0.9%
Basic Materials	1.8%	-

Return for Risk

VOO vs. AIAI.L — Risk / Return Rank

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

VOO

VOO Risk / Return Rank: 66
VOO Sharpe Ratio Rank: 67
VOO Sortino Ratio Rank: 63
VOO Omega Ratio Rank: 66
VOO Calmar Ratio Rank: 60
VOO Martin Ratio Rank: 73

AIAI.L

AIAI.L Risk / Return Rank: 83
AIAI.L Sharpe Ratio Rank: 89
AIAI.L Sortino Ratio Rank: 83
AIAI.L Omega Ratio Rank: 78
AIAI.L Calmar Ratio Rank: 86
AIAI.L Martin Ratio Rank: 77

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.

VOO vs. AIAI.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard S&P 500 ETF (VOO) and L&G Artificial Intelligence UCITS ETF (AIAI.L). 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.

	VOO	AIAI.L	Difference
Sharpe ratio: Return per unit of total volatility	2.15	3.00	-0.85
Sortino ratio: Return per unit of downside risk	2.89	3.68	-0.79
Omega ratio: Gain probability vs. loss probability	1.39	1.46	-0.07
Calmar ratio: Return relative to maximum drawdown	2.92	4.73	-1.81
Martin ratio: Return relative to average drawdown	13.53	14.60	-1.08
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VOO vs. AIAI.L - Sharpe Ratio Comparison

The current VOO Sharpe Ratio is 2.15, which is comparable to the AIAI.L Sharpe Ratio of 3.00. The chart below compares the historical Sharpe Ratios of VOO and AIAI.L, 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

	VOO	AIAI.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.15	3.00	-0.85
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.80	0.63	+0.16
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.85	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.88	0.77	+0.11

Drawdowns

VOO vs. AIAI.L - Drawdown Comparison

The maximum VOO drawdown since its inception was -33.99%, smaller than the maximum AIAI.L drawdown of -49.61%. Use the drawdown chart below to compare losses from any high point for VOO and AIAI.L.

Drawdown Indicators

	VOO	AIAI.L	Difference
Max Drawdown Largest peak-to-trough decline	-33.99%	-49.61%	+15.62%
Max Drawdown (1Y) Largest decline over 1 year	-8.90%	-16.80%	+7.90%
Max Drawdown (3Y) Largest decline over 3 years	-18.69%	-29.96%	+11.27%
Max Drawdown (5Y) Largest decline over 5 years	-24.52%	-49.61%	+25.09%
Max Drawdown (10Y) Largest decline over 10 years	-33.99%	—	—
Current Drawdown Current decline from peak	-2.90%	-1.83%	-1.07%
Average Drawdown Average peak-to-trough decline	-3.69%	-14.16%	+10.47%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.92%	5.45%	-3.53%

Volatility

VOO vs. AIAI.L - Volatility Comparison

The current volatility for Vanguard S&P 500 ETF (VOO) is 3.74%, while L&G Artificial Intelligence UCITS ETF (AIAI.L) has a volatility of 10.67%. This indicates that VOO experiences smaller price fluctuations and is considered to be less risky than AIAI.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VOO	AIAI.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.74%	10.67%	-6.93%
Volatility (6M) Calculated over the trailing 6-month period	9.30%	20.49%	-11.19%
Volatility (1Y) Calculated over the trailing 1-year period	12.10%	26.55%	-14.45%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.84%	28.59%	-11.75%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.02%	28.81%	-10.79%

VOO vs. AIAI.L - Expense Ratio Comparison

VOO has a 0.03% expense ratio, which is lower than AIAI.L's 0.49% expense ratio.

Dividends

VOO vs. AIAI.L - Dividend Comparison

VOO's dividend yield for the trailing twelve months is around 1.05%, while AIAI.L has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AIAI.L L&G Artificial Intelligence UCITS ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VOO Vanguard S&P 500 ETF	1.05%	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 VOO and AIAI.L in my portfolio?

VOO and AIAI.L have a correlation of 0.61, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, VOO or AIAI.L?

On fees, VOO is cheaper at 0.03% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, VOO or AIAI.L?

VOO is cheaper with a 0.03% expense ratio, compared with 0.49% for AIAI.L.

What is the main difference between VOO and AIAI.L?

VOO is categorized as S&P 500, while AIAI.L is Technology Equities. VOO tracks S&P 500 Index, while AIAI.L tracks MSCI World/Information Tech NR USD. They also come from different issuers: Vanguard and Legal & General. Their fees differ too: 0.03% for VOO and 0.49% for AIAI.L.