ATAI vs. VBR

Last updated Jun 5, 2026

ATAI (Atai Life Sciences N.V.) is a stock, while VBR (Vanguard Small-Cap Value ETF) is Small Cap Value Equities fund tracking the CRSP US Small Cap Value Index. Over the past 3 years, ATAI returned 35.22%/yr vs 17.22%/yr for VBR. At a 0.34 correlation, their price movements are largely independent.

Performance

ATAI vs. VBR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Atai Life Sciences N.V. (ATAI) and Vanguard Small-Cap Value ETF (VBR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ATAI achieves a 10.02% return, which is significantly lower than VBR's 12.51% return.

ATAI

• 1D: -0.66%
• 1M: 12.50%
• YTD: 10.02%
• 6M: 2.27%
• 1Y: 82.19%
• 3Y*: 35.22%
• 5Y*: —
• 10Y*: —

VBR

• 1D: 0.76%
• 1M: 2.07%
• YTD: 12.51%
• 6M: 12.70%
• 1Y: 27.37%
• 3Y*: 17.22%
• 5Y*: 8.12%
• 10Y*: 10.49%

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

ATAI vs. VBR - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
ATAI Atai Life Sciences N.V.	10.02%	207.52%	-5.67%	-46.99%	-65.14%	-60.77%
VBR Vanguard Small-Cap Value ETF	12.51%	9.09%	12.40%	16.00%	-9.38%	7.27%

Correlation

The correlation between ATAI and VBR is 0.23, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.23
Correlation (3Y) Calculated over the trailing 3-year period	0.33
Correlation (All Time) Calculated using the full available price history since Jun 21, 2021	0.34

The correlation between ATAI and VBR shifts across timeframes, from 0.23 (1 year) to 0.34 (all time), reflecting how their relationship changes across market environments.

Return for Risk

ATAI vs. VBR — Risk / Return Rank

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

ATAI

ATAI Risk / Return Rank: 71
ATAI Sharpe Ratio Rank: 72
ATAI Sortino Ratio Rank: 74
ATAI Omega Ratio Rank: 71
ATAI Calmar Ratio Rank: 72
ATAI Martin Ratio Rank: 66

VBR

VBR Risk / Return Rank: 58
VBR Sharpe Ratio Rank: 54
VBR Sortino Ratio Rank: 57
VBR Omega Ratio Rank: 52
VBR Calmar Ratio Rank: 63
VBR Martin Ratio Rank: 62

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.

ATAI vs. VBR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Atai Life Sciences N.V. (ATAI) and Vanguard Small-Cap Value ETF (VBR). 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.

	ATAI	VBR	Difference
Sharpe ratio: Return per unit of total volatility	1.03	1.82	-0.79
Sortino ratio: Return per unit of downside risk	1.94	2.66	-0.72
Omega ratio: Gain probability vs. loss probability	1.24	1.32	-0.08
Calmar ratio: Return relative to maximum drawdown	1.72	3.11	-1.39
Martin ratio: Return relative to average drawdown	2.79	10.96	-8.16
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ATAI vs. VBR - Sharpe Ratio Comparison

The current ATAI Sharpe Ratio is 1.03, which is lower than the VBR Sharpe Ratio of 1.82. The chart below compares the historical Sharpe Ratios of ATAI and VBR, 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

	ATAI	VBR	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.03	1.82	-0.79
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.41	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.48	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.31	0.42	-0.72

Drawdowns

ATAI vs. VBR - Drawdown Comparison

The maximum ATAI drawdown since its inception was -94.77%, which is greater than VBR's maximum drawdown of -61.98%. Use the drawdown chart below to compare losses from any high point for ATAI and VBR.

Drawdown Indicators

	ATAI	VBR	Difference
Max Drawdown Largest peak-to-trough decline	-94.77%	-61.98%	-32.79%
Max Drawdown (1Y) Largest decline over 1 year	-48.06%	-8.85%	-39.21%
Max Drawdown (3Y) Largest decline over 3 years	-59.23%	-24.19%	-35.04%
Max Drawdown (5Y) Largest decline over 5 years	—	-24.19%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-45.28%	—
Current Drawdown Current decline from peak	-77.38%	0.00%	-77.38%
Average Drawdown Average peak-to-trough decline	-79.77%	-8.27%	-71.50%
Ulcer Index Depth and duration of drawdowns from previous peaks	29.52%	2.50%	+27.02%

Volatility

ATAI vs. VBR - Volatility Comparison

Atai Life Sciences N.V. (ATAI) has a higher volatility of 15.38% compared to Vanguard Small-Cap Value ETF (VBR) at 3.89%. This indicates that ATAI's price experiences larger fluctuations and is considered to be riskier than VBR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ATAI	VBR	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.38%	3.89%	+11.49%
Volatility (6M) Calculated over the trailing 6-month period	49.13%	10.47%	+38.66%
Volatility (1Y) Calculated over the trailing 1-year period	80.43%	15.14%	+65.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	83.66%	19.77%	+63.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	83.66%	21.73%	+61.93%

Dividends

ATAI vs. VBR - Dividend Comparison

ATAI has not paid dividends to shareholders, while VBR's dividend yield for the trailing twelve months is around 1.75%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ATAI Atai Life Sciences N.V.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VBR Vanguard Small-Cap Value ETF	1.75%	1.95%	1.98%	2.12%	2.03%	1.75%	1.68%	2.06%	2.35%	1.79%	1.77%	1.99%

Frequently Asked Questions

Can I hold both ATAI and VBR in my portfolio?

ATAI and VBR have a correlation of 0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ATAI or VBR?

ATAI has higher volatility (15.38%) compared to VBR (3.89%). In terms of maximum drawdown, ATAI dropped -94.77% vs VBR's -61.98%.

Which has better risk-adjusted returns?

VBR currently has the higher Sharpe Ratio (1.82 vs 1.03), 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.