CGNX vs. VTI

Last updated Jun 25, 2026

CGNX (Cognex Corporation) is a stock, while VTI (Vanguard Total Stock Market ETF) is Large Cap Blend Equities fund tracking the CRSP US Total Market Index. Over the past 10 years, CGNX returned 12.92%/yr vs 15.14%/yr for VTI. A 0.65 correlation means they provide meaningful diversification when combined.

Performance

CGNX vs. VTI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Cognex Corporation (CGNX) and Vanguard Total Stock Market ETF (VTI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CGNX achieves a 77.38% return, which is significantly higher than VTI's 8.80% return. Over the past 10 years, CGNX has underperformed VTI with an annualized return of 12.92%, while VTI has yielded a comparatively higher 15.14% annualized return.

CGNX

• 1D: -0.50%
• 1M: -3.71%
• YTD: 77.38%
• 6M: 74.37%
• 1Y: 108.66%
• 3Y*: 6.86%
• 5Y*: -4.40%
• 10Y*: 12.92%

VTI

• 1D: -0.01%
• 1M: -0.86%
• YTD: 8.80%
• 6M: 7.33%
• 1Y: 22.77%
• 3Y*: 20.62%
• 5Y*: 11.81%
• 10Y*: 15.14%

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

CGNX vs. VTI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CGNX Cognex Corporation	77.38%	1.24%	-13.45%	-10.84%	-39.11%	-2.85%	47.69%	45.54%	-36.53%	92.91%
VTI Vanguard Total Stock Market ETF	8.80%	17.10%	23.81%	26.05%	-19.52%	25.68%	21.08%	30.67%	-5.23%	21.21%

Correlation

The correlation between CGNX and VTI is 0.56, 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	0.56
Correlation (3Y) Calculated over the trailing 3-year period	0.60
Correlation (5Y) Calculated over the trailing 5-year period	0.66
Correlation (10Y) Calculated over the trailing 10-year period	0.66
Correlation (All Time) Calculated using the full available price history since May 31, 2001	0.65

The correlation between CGNX and VTI has been stable across timeframes, ranging from 0.56 to 0.66 - a consistent structural relationship.

Return for Risk

CGNX vs. VTI — Risk / Return Rank

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

CGNX

CGNX Risk / Return Rank: 89
CGNX Sharpe Ratio Rank: 88
CGNX Sortino Ratio Rank: 90
CGNX Omega Ratio Rank: 90
CGNX Calmar Ratio Rank: 89
CGNX Martin Ratio Rank: 86

VTI

VTI Risk / Return Rank: 60
VTI Sharpe Ratio Rank: 59
VTI Sortino Ratio Rank: 57
VTI Omega Ratio Rank: 58
VTI Calmar Ratio Rank: 58
VTI Martin Ratio Rank: 69

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.

CGNX vs. VTI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Cognex Corporation (CGNX) and Vanguard Total Stock Market ETF (VTI). 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.

	CGNX	VTI	Difference
Sharpe ratio: Return per unit of total volatility	1.87	1.79	+0.07
Sortino ratio: Return per unit of downside risk	3.10	2.46	+0.65
Omega ratio: Gain probability vs. loss probability	1.41	1.32	+0.09
Calmar ratio: Return relative to maximum drawdown	3.92	2.56	+1.36
Martin ratio: Return relative to average drawdown	8.81	11.37	-2.56

CGNX vs. VTI - Sharpe Ratio Comparison

The current CGNX Sharpe Ratio is 1.87, which is comparable to the VTI Sharpe Ratio of 1.79. The chart below compares the historical Sharpe Ratios of CGNX and VTI, 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

CGNX vs. VTI - Drawdown Comparison

The maximum CGNX drawdown since its inception was -83.71%, which is greater than VTI's maximum drawdown of -55.45%. Use the drawdown chart below to compare losses from any high point for CGNX and VTI.

Drawdown Indicators

	CGNX	VTI	Difference
Max Drawdown Largest peak-to-trough decline	-83.71%	-55.45%	-28.26%
Max Drawdown (1Y) Largest decline over 1 year	-27.86%	-8.92%	-18.94%
Max Drawdown (3Y) Largest decline over 3 years	-59.98%	-19.30%	-40.68%
Max Drawdown (5Y) Largest decline over 5 years	-74.07%	-25.36%	-48.71%
Max Drawdown (10Y) Largest decline over 10 years	-74.63%	-35.00%	-39.63%
Current Drawdown Current decline from peak	-29.98%	-2.86%	-27.12%
Average Drawdown Average peak-to-trough decline	-37.51%	-8.01%	-29.50%
Ulcer Index Depth and duration of drawdowns from previous peaks	12.38%	2.01%	+10.37%

Volatility

CGNX vs. VTI - Volatility Comparison

Cognex Corporation (CGNX) has a higher volatility of 14.07% compared to Vanguard Total Stock Market ETF (VTI) at 4.93%. This indicates that CGNX's price experiences larger fluctuations and is considered to be riskier than VTI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CGNX	VTI	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.07%	4.93%	+9.14%
Volatility (6M) Calculated over the trailing 6-month period	42.49%	10.02%	+32.47%
Volatility (1Y) Calculated over the trailing 1-year period	58.65%	12.80%	+45.85%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	43.76%	17.50%	+26.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	41.94%	18.31%	+23.63%

Dividends

CGNX vs. VTI - Dividend Comparison

CGNX's dividend yield for the trailing twelve months is around 0.53%, less than VTI's 1.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CGNX Cognex Corporation	0.53%	0.90%	0.85%	0.68%	0.56%	0.32%	2.77%	0.37%	0.48%	0.27%	0.46%	0.62%
VTI Vanguard Total Stock Market ETF	1.04%	1.12%	1.27%	1.44%	1.66%	1.21%	1.42%	1.78%	2.04%	1.71%	1.92%	1.98%

Frequently Asked Questions

Can I hold both CGNX and VTI in my portfolio?

CGNX and VTI have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CGNX or VTI?

CGNX has higher volatility (14.07%) compared to VTI (4.93%). In terms of maximum drawdown, CGNX dropped -83.71% vs VTI's -55.45%.

Which has better risk-adjusted returns?

CGNX currently has the higher Sharpe Ratio (1.86 vs 1.79), 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.