RBOT vs. VOO

Last updated Aug 4, 2026

RBOT (Vicarious Surgical Inc.) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 5 years, RBOT returned -81.19%/yr vs 13.12%/yr for VOO. Their 0.28 correlation means their historical movements had little consistent relationship.

Performance

RBOT vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vicarious Surgical Inc. (RBOT) 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, RBOT achieves a -96.77% return, which is significantly lower than VOO's 11.72% return.

RBOT

• 1D: -8.12%
• 1M: -62.09%
• 6M: -96.65%
• YTD: -96.77%
• 1Y: -99.19%
• 3Y*: -86.51%
• 5Y*: -81.19%
• 10Y*: —
• ALL TIME*: -75.62%

VOO

• 1D: 1.42%
• 1M: 1.69%
• 6M: 9.53%
• YTD: 11.72%
• 1Y: 23.30%
• 3Y*: 20.85%
• 5Y*: 13.12%
• 10Y*: 15.17%
• ALL TIME*: 14.88%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
RBOT Vicarious Surgical Inc.	$6.12K	$5.93K	$15.41K
VOO Vanguard S&P 500 ETF	$3.97B	$3.80B	$5.49B

RBOT vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
RBOT Vicarious Surgical Inc.	-96.77%	-83.51%	19.63%	-81.85%	-80.98%	4.53%	3.67%
VOO Vanguard S&P 500 ETF	11.72%	17.82%	24.98%	26.32%	-18.17%	28.79%	9.20%

Correlation

The correlation between RBOT and VOO is 0.25, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.25
Correlation (3Y) Balances recent behavior with more history.	0.25
Correlation (5Y) Shows whether the relationship held over a longer period.	0.30
Correlation (All Time) Calculated using the full available price history since Sep 4, 2020	0.28

Return for Risk

RBOT vs. VOO — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

RBOT

RBOT Risk / Return Rank: 4
RBOT Sharpe Ratio Rank: 13
RBOT Sortino Ratio Rank: 0
RBOT Omega Ratio Rank: 0
RBOT Calmar Ratio Rank: 0
RBOT Martin Ratio Rank: 8

VOO

VOO Risk / Return Rank: 78
VOO Sharpe Ratio Rank: 79
VOO Sortino Ratio Rank: 77
VOO Omega Ratio Rank: 78
VOO Calmar Ratio Rank: 74
VOO Martin Ratio Rank: 83

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

RBOT vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vicarious Surgical Inc. (RBOT) 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.

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.

	RBOT	VOO	Difference
Sharpe ratio: Return per unit of total volatility	-0.68	1.83	-2.51
Sortino ratio: Return per unit of downside risk	-3.97	2.53	-6.49
Omega ratio: Gain probability vs. loss probability	0.52	1.33	-0.81
Calmar ratio: Return relative to maximum drawdown	-1.00	2.63	-3.63
Martin ratio: Return relative to average drawdown	-1.38	11.23	-12.62

RBOT vs. VOO - Sharpe Ratio Comparison

The current RBOT Sharpe Ratio is -0.68, which is lower than the VOO Sharpe Ratio of 1.83. The chart below compares the historical Sharpe Ratios of RBOT 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.

Drawdowns

RBOT vs. VOO - Drawdown Comparison

The maximum RBOT drawdown since its inception was -99.98%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for RBOT and VOO.

Drawdown Indicators

	RBOT	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-99.98%	-33.99%	-65.99%
Max Drawdown (1Y) Largest decline over 1 year	-99.32%	-8.90%	-90.42%
Max Drawdown (3Y) Largest decline over 3 years	-99.77%	-18.69%	-81.08%
Max Drawdown (5Y) Largest decline over 5 years	-99.98%	-24.52%	-75.46%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.99%	—
Current Drawdown Current decline from peak	-99.98%	0.00%	-99.98%
Average Drawdown Average peak-to-trough decline	-70.58%	-3.67%	-66.91%
Ulcer Index Depth and duration of drawdowns from previous peaks	68.01%	2.08%	+65.93%

Volatility

RBOT vs. VOO - Volatility Comparison

Vicarious Surgical Inc. (RBOT) has a higher volatility of 44.96% compared to Vanguard S&P 500 ETF (VOO) at 3.81%. This indicates that RBOT'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

	RBOT	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	44.96%	3.81%	+41.15%
Volatility (6M) Calculated over the trailing 6-month period	136.61%	10.18%	+126.43%
Volatility (1Y) Calculated over the trailing 1-year period	147.01%	12.80%	+134.21%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	120.48%	16.95%	+103.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	110.44%	18.02%	+92.42%

Dividends

RBOT vs. VOO - Dividend Comparison

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

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RBOT Vicarious Surgical 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%
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 RBOT and VOO in my portfolio?

RBOT and VOO have a correlation of 0.25, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RBOT or VOO?

RBOT has higher volatility (44.96%) compared to VOO (3.81%). In terms of maximum drawdown, RBOT dropped -99.98% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (1.83 vs -0.68), 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.