VEMAX vs. RIVN

Last updated Jun 13, 2026

VEMAX (Vanguard Emerging Markets Stock Index Fund Admiral Shares) is Emerging Markets Equities fund tracking the FTSE Emerging Markets All Cap China A Inclusion Index, while RIVN (Rivian Automotive, Inc.) is a stock. Over the past 3 years, VEMAX returned 16.48%/yr vs 3.20%/yr for RIVN. At a 0.41 correlation, their price movements are largely independent.

Performance

VEMAX vs. RIVN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Emerging Markets Stock Index Fund Admiral Shares (VEMAX) and Rivian Automotive, Inc. (RIVN). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VEMAX achieves a 9.86% return, which is significantly higher than RIVN's -14.97% return.

VEMAX

• 1D: 2.25%
• 1M: -1.61%
• YTD: 9.86%
• 6M: 11.36%
• 1Y: 25.51%
• 3Y*: 16.48%
• 5Y*: 4.76%
• 10Y*: 8.79%

RIVN

• 1D: 7.85%
• 1M: 15.43%
• YTD: -14.97%
• 6M: -9.01%
• 1Y: 24.89%
• 3Y*: 3.20%
• 5Y*: —
• 10Y*: —

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

VEMAX vs. RIVN - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
VEMAX Vanguard Emerging Markets Stock Index Fund Admiral Shares	9.86%	24.76%	11.34%	8.82%	-17.79%	-2.72%
RIVN Rivian Automotive, Inc.	-14.97%	48.20%	-43.31%	27.29%	-82.23%	-2.87%

Correlation

The correlation between VEMAX and RIVN is 0.36, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.36
Correlation (3Y) Calculated over the trailing 3-year period	0.35
Correlation (All Time) Calculated using the full available price history since Nov 10, 2021	0.41

Return for Risk

VEMAX vs. RIVN — Risk / Return Rank

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

VEMAX

VEMAX Risk / Return Rank: 47
VEMAX Sharpe Ratio Rank: 47
VEMAX Sortino Ratio Rank: 46
VEMAX Omega Ratio Rank: 48
VEMAX Calmar Ratio Rank: 47
VEMAX Martin Ratio Rank: 45

RIVN

RIVN Risk / Return Rank: 55
RIVN Sharpe Ratio Rank: 54
RIVN Sortino Ratio Rank: 58
RIVN Omega Ratio Rank: 54
RIVN Calmar Ratio Rank: 54
RIVN Martin Ratio Rank: 54

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.

VEMAX vs. RIVN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Emerging Markets Stock Index Fund Admiral Shares (VEMAX) and Rivian Automotive, Inc. (RIVN). 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.

	VEMAX	RIVN	Difference
Sharpe ratio: Return per unit of total volatility	1.59	0.31	+1.27
Sortino ratio: Return per unit of downside risk	2.22	1.05	+1.17
Omega ratio: Gain probability vs. loss probability	1.29	1.12	+0.18
Calmar ratio: Return relative to maximum drawdown	2.15	0.48	+1.67
Martin ratio: Return relative to average drawdown	7.83	0.95	+6.88

VEMAX vs. RIVN - Sharpe Ratio Comparison

The current VEMAX Sharpe Ratio is 1.59, which is higher than the RIVN Sharpe Ratio of 0.31. The chart below compares the historical Sharpe Ratios of VEMAX and RIVN, 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

VEMAX vs. RIVN - Drawdown Comparison

The maximum VEMAX drawdown since its inception was -66.45%, smaller than the maximum RIVN drawdown of -95.12%. Use the drawdown chart below to compare losses from any high point for VEMAX and RIVN.

Drawdown Indicators

	VEMAX	RIVN	Difference
Max Drawdown Largest peak-to-trough decline	-66.45%	-95.12%	+28.67%
Max Drawdown (1Y) Largest decline over 1 year	-11.05%	-42.54%	+31.49%
Max Drawdown (3Y) Largest decline over 3 years	-15.78%	-69.61%	+53.83%
Max Drawdown (5Y) Largest decline over 5 years	-32.46%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-36.11%	—	—
Current Drawdown Current decline from peak	-3.60%	-90.26%	+86.66%
Average Drawdown Average peak-to-trough decline	-16.10%	-86.33%	+70.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.03%	21.62%	-18.59%

Volatility

VEMAX vs. RIVN - Volatility Comparison

The current volatility for Vanguard Emerging Markets Stock Index Fund Admiral Shares (VEMAX) is 6.17%, while Rivian Automotive, Inc. (RIVN) has a volatility of 22.66%. This indicates that VEMAX experiences smaller price fluctuations and is considered to be less risky than RIVN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VEMAX	RIVN	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.17%	22.66%	-16.49%
Volatility (6M) Calculated over the trailing 6-month period	12.65%	49.82%	-37.17%
Volatility (1Y) Calculated over the trailing 1-year period	14.97%	65.46%	-50.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.50%	77.55%	-62.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.49%	77.55%	-61.06%

Dividends

VEMAX vs. RIVN - Dividend Comparison

VEMAX's dividend yield for the trailing twelve months is around 2.42%, while RIVN has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RIVN Rivian Automotive, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VEMAX Vanguard Emerging Markets Stock Index Fund Admiral Shares	2.42%	2.74%	3.13%	3.47%	4.05%	2.57%	1.87%	3.20%	2.85%	2.31%	2.51%	3.25%

Frequently Asked Questions

Can I hold both VEMAX and RIVN in my portfolio?

VEMAX and RIVN have a correlation of 0.36, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VEMAX or RIVN?

RIVN has higher volatility (22.66%) compared to VEMAX (6.17%). In terms of maximum drawdown, VEMAX dropped -66.45% vs RIVN's -95.12%.

Which has better risk-adjusted returns?

VEMAX currently has the higher Sharpe Ratio (1.59 vs 0.31), 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.