ESE vs. VFINX

Last updated Jun 3, 2026

ESE (ESCO Technologies Inc.) is a stock, while VFINX (Vanguard 500 Index Fund Investor Shares) is Large Cap Blend Equities fund managed by Vanguard. Over the past 10 years, ESE returned 22.24%/yr vs 15.50%/yr for VFINX. At a 0.42 correlation, their price movements are largely independent.

Performance

ESE vs. VFINX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ESCO Technologies Inc. (ESE) and Vanguard 500 Index Fund Investor Shares (VFINX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ESE achieves a 49.33% return, which is significantly higher than VFINX's 11.50% return. Over the past 10 years, ESE has outperformed VFINX with an annualized return of 22.24%, while VFINX has yielded a comparatively lower 15.50% annualized return.

ESE

• 1D: 1.35%
• 1M: -10.82%
• YTD: 49.33%
• 6M: 43.01%
• 1Y: 62.58%
• 3Y*: 45.16%
• 5Y*: 26.27%
• 10Y*: 22.24%

VFINX

• 1D: 0.27%
• 1M: 5.23%
• YTD: 11.50%
• 6M: 11.86%
• 1Y: 29.40%
• 3Y*: 22.54%
• 5Y*: 14.02%
• 10Y*: 15.50%

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

ESE vs. VFINX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ESE ESCO Technologies Inc.	49.33%	46.96%	14.15%	34.13%	-2.30%	-12.59%	12.01%	41.00%	10.04%	6.79%
VFINX Vanguard 500 Index Fund Investor Shares	11.50%	17.71%	24.84%	26.12%	-18.24%	28.53%	18.20%	31.33%	-4.55%	21.66%

Correlation

The correlation between ESE and VFINX is 0.41, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.41
Correlation (3Y) Calculated over the trailing 3-year period	0.48
Correlation (5Y) Calculated over the trailing 5-year period	0.53
Correlation (10Y) Calculated over the trailing 10-year period	0.55
Correlation (All Time) Calculated using the full available price history since Oct 2, 1990	0.42

The correlation between ESE and VFINX shifts across timeframes, from 0.41 (1 year) to 0.55 (10 years), reflecting how their relationship changes across market environments.

Return for Risk

ESE vs. VFINX — Risk / Return Rank

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

ESE

ESE Risk / Return Rank: 86
ESE Sharpe Ratio Rank: 88
ESE Sortino Ratio Rank: 84
ESE Omega Ratio Rank: 82
ESE Calmar Ratio Rank: 87
ESE Martin Ratio Rank: 89

VFINX

VFINX Risk / Return Rank: 74
VFINX Sharpe Ratio Rank: 76
VFINX Sortino Ratio Rank: 68
VFINX Omega Ratio Rank: 68
VFINX Calmar Ratio Rank: 73
VFINX Martin Ratio Rank: 83

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.

ESE vs. VFINX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ESCO Technologies Inc. (ESE) and Vanguard 500 Index Fund Investor Shares (VFINX). 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.

	ESE	VFINX	Difference
Sharpe ratio Return per unit of total volatility	2.05	2.54	-0.49
Sortino ratio Return per unit of downside risk	2.69	3.44	-0.75
Omega ratio Gain probability vs. loss probability	1.34	1.46	-0.12
Calmar ratio Return relative to maximum drawdown	4.02	3.36	+0.66
Martin ratio Return relative to average drawdown	11.24	15.71	-4.48
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ESE vs. VFINX - Sharpe Ratio Comparison

The current ESE Sharpe Ratio is 2.05, which is comparable to the VFINX Sharpe Ratio of 2.54. The chart below compares the historical Sharpe Ratios of ESE and VFINX, 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

	ESE	VFINX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.05	2.54	-0.49
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.87	0.83	+0.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.73	0.86	-0.13
Sharpe Ratio (All Time) Calculated using the full available price history	0.42	0.62	-0.20

Drawdowns

ESE vs. VFINX - Drawdown Comparison

The maximum ESE drawdown since its inception was -58.54%, which is greater than VFINX's maximum drawdown of -55.25%. Use the drawdown chart below to compare losses from any high point for ESE and VFINX.

Drawdown Indicators

	ESE	VFINX	Difference
Max Drawdown Largest peak-to-trough decline	-58.54%	-55.25%	-3.29%
Max Drawdown (1Y) Largest decline over 1 year	-15.22%	-8.92%	-6.30%
Max Drawdown (3Y) Largest decline over 3 years	-17.52%	-18.76%	+1.24%
Max Drawdown (5Y) Largest decline over 5 years	-36.88%	-24.59%	-12.29%
Max Drawdown (10Y) Largest decline over 10 years	-45.97%	-33.83%	-12.14%
Current Drawdown Current decline from peak	-14.08%	0.00%	-14.08%
Average Drawdown Average peak-to-trough decline	-20.26%	-8.28%	-11.98%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.44%	1.91%	+3.53%

Volatility

ESE vs. VFINX - Volatility Comparison

ESCO Technologies Inc. (ESE) has a higher volatility of 12.23% compared to Vanguard 500 Index Fund Investor Shares (VFINX) at 2.82%. This indicates that ESE's price experiences larger fluctuations and is considered to be riskier than VFINX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ESE	VFINX	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.23%	2.82%	+9.41%
Volatility (6M) Calculated over the trailing 6-month period	25.61%	8.99%	+16.62%
Volatility (1Y) Calculated over the trailing 1-year period	30.74%	11.88%	+18.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.36%	16.90%	+13.46%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.51%	18.07%	+12.44%

Dividends

ESE vs. VFINX - Dividend Comparison

ESE's dividend yield for the trailing twelve months is around 0.11%, less than VFINX's 0.93% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ESE ESCO Technologies Inc.	0.11%	0.16%	0.24%	0.27%	0.37%	0.27%	0.31%	0.43%	0.49%	0.40%	0.56%	0.89%
VFINX Vanguard 500 Index Fund Investor Shares	0.93%	1.02%	1.14%	1.36%	1.57%	1.15%	1.45%	1.77%	1.94%	1.69%	1.92%	1.99%

Frequently Asked Questions

Can I hold both ESE and VFINX in my portfolio?

ESE and VFINX have a correlation of 0.41, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ESE or VFINX?

ESE has higher volatility (12.23%) compared to VFINX (2.82%). In terms of maximum drawdown, ESE dropped -58.54% vs VFINX's -55.25%.

Which has better risk-adjusted returns?

VFINX currently has the higher Sharpe Ratio (2.54 vs 2.05), 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.