EIVPX vs. VFIAX

Last updated Jun 3, 2026

EIVPX (Parametric Volatility Risk Premium - Defensive Fund) and VFIAX (Vanguard 500 Index Fund Admiral Shares) are both mutual funds - EIVPX is a Options Trading fund managed by Eaton Vance, while VFIAX is a S&P 500 fund tracking the S&P 500 Index. Over the past 5 years, EIVPX returned 10.14%/yr vs 14.13%/yr for VFIAX. With a 0.98 correlation, they move nearly in lockstep. EIVPX charges 0.47%/yr vs 0.04%/yr for VFIAX.

Performance

EIVPX vs. VFIAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Parametric Volatility Risk Premium - Defensive Fund (EIVPX) and Vanguard 500 Index Fund Admiral Shares (VFIAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EIVPX achieves a 6.28% return, which is significantly lower than VFIAX's 11.54% return.

EIVPX

• 1D: 0.00%
• 1M: 2.24%
• YTD: 6.28%
• 6M: 7.07%
• 1Y: 18.60%
• 3Y*: 14.19%
• 5Y*: 10.14%
• 10Y*: —

VFIAX

• 1D: 0.27%
• 1M: 5.23%
• YTD: 11.54%
• 6M: 11.91%
• 1Y: 29.53%
• 3Y*: 22.66%
• 5Y*: 14.13%
• 10Y*: 15.61%

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

EIVPX vs. VFIAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EIVPX Parametric Volatility Risk Premium - Defensive Fund	6.28%	12.90%	16.45%	16.83%	-8.64%	17.96%	4.74%	15.46%	-2.80%	8.71%
VFIAX Vanguard 500 Index Fund Admiral Shares	11.54%	17.83%	24.97%	26.24%	-18.16%	28.65%	18.32%	31.46%	-4.45%	15.74%

Correlation

The correlation between EIVPX and VFIAX is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.97
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.98
Correlation (All Time) Calculated using the full available price history since Feb 16, 2017	0.98

The correlation between EIVPX and VFIAX has been stable across timeframes, ranging from 0.97 to 0.98 - a consistent structural relationship.

Return for Risk

EIVPX vs. VFIAX — Risk / Return Rank

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

EIVPX

EIVPX Risk / Return Rank: 91
EIVPX Sharpe Ratio Rank: 90
EIVPX Sortino Ratio Rank: 87
EIVPX Omega Ratio Rank: 89
EIVPX Calmar Ratio Rank: 92
EIVPX Martin Ratio Rank: 97

VFIAX

VFIAX Risk / Return Rank: 74
VFIAX Sharpe Ratio Rank: 77
VFIAX Sortino Ratio Rank: 69
VFIAX Omega Ratio Rank: 69
VFIAX Calmar Ratio Rank: 74
VFIAX Martin Ratio Rank: 84

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.

EIVPX vs. VFIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Parametric Volatility Risk Premium - Defensive Fund (EIVPX) and Vanguard 500 Index Fund Admiral Shares (VFIAX). 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.

	EIVPX	VFIAX	Difference
Sharpe ratio Return per unit of total volatility	2.98	2.55	+0.43
Sortino ratio Return per unit of downside risk	4.16	3.46	+0.71
Omega ratio Gain probability vs. loss probability	1.64	1.46	+0.18
Calmar ratio Return relative to maximum drawdown	4.98	3.38	+1.60
Martin ratio Return relative to average drawdown	26.60	15.82	+10.77
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

EIVPX vs. VFIAX - Sharpe Ratio Comparison

The current EIVPX Sharpe Ratio is 2.98, which is comparable to the VFIAX Sharpe Ratio of 2.55. The chart below compares the historical Sharpe Ratios of EIVPX and VFIAX, 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

	EIVPX	VFIAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.98	2.55	+0.43
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.04	0.84	+0.20
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.87	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.77	0.47	+0.31

Drawdowns

EIVPX vs. VFIAX - Drawdown Comparison

The maximum EIVPX drawdown since its inception was -26.67%, smaller than the maximum VFIAX drawdown of -55.20%. Use the drawdown chart below to compare losses from any high point for EIVPX and VFIAX.

Drawdown Indicators

	EIVPX	VFIAX	Difference
Max Drawdown Largest peak-to-trough decline	-26.67%	-55.20%	+28.53%
Max Drawdown (1Y) Largest decline over 1 year	-3.81%	-8.90%	+5.09%
Max Drawdown (3Y) Largest decline over 3 years	-12.77%	-18.75%	+5.98%
Max Drawdown (5Y) Largest decline over 5 years	-14.07%	-24.53%	+10.46%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.83%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-2.46%	-9.40%	+6.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.71%	1.90%	-1.19%

Volatility

EIVPX vs. VFIAX - Volatility Comparison

The current volatility for Parametric Volatility Risk Premium - Defensive Fund (EIVPX) is 0.93%, while Vanguard 500 Index Fund Admiral Shares (VFIAX) has a volatility of 2.82%. This indicates that EIVPX experiences smaller price fluctuations and is considered to be less risky than VFIAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EIVPX	VFIAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.93%	2.82%	-1.89%
Volatility (6M) Calculated over the trailing 6-month period	4.71%	8.99%	-4.28%
Volatility (1Y) Calculated over the trailing 1-year period	6.39%	11.88%	-5.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.79%	16.90%	-7.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	11.81%	18.07%	-6.26%

EIVPX vs. VFIAX - Expense Ratio Comparison

EIVPX has a 0.47% expense ratio, which is higher than VFIAX's 0.04% expense ratio.

Dividends

EIVPX vs. VFIAX - Dividend Comparison

EIVPX's dividend yield for the trailing twelve months is around 3.78%, more than VFIAX's 1.01% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EIVPX Parametric Volatility Risk Premium - Defensive Fund	3.78%	4.01%	2.67%	5.09%	7.95%	1.22%	0.75%	1.23%	1.24%	0.53%	0.00%	0.00%
VFIAX Vanguard 500 Index Fund Admiral Shares	1.01%	1.12%	1.24%	1.45%	1.68%	1.24%	1.53%	1.87%	2.05%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both EIVPX and VFIAX in my portfolio?

With a correlation of 0.97, EIVPX and VFIAX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, EIVPX or VFIAX?

VFIAX has higher volatility (2.82%) compared to EIVPX (0.93%). In terms of maximum drawdown, EIVPX dropped -26.67% vs VFIAX's -55.20%.

Which has better risk-adjusted returns?

EIVPX currently has the higher Sharpe Ratio (2.98 vs 2.55), 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.