WVALX vs. VIIIX

Last updated Jun 25, 2026

WVALX (Weitz Value Fund) and VIIIX (Vanguard Institutional Index Fund Institutional Plus Shares) are both mutual funds - WVALX is a Large Cap Blend Equities fund managed by Weitz, while VIIIX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, WVALX returned 9.15%/yr vs 15.70%/yr for VIIIX. Their correlation of 0.86 suggests significant overlap in exposure. WVALX charges 1.04%/yr vs 0.02%/yr for VIIIX.

Performance

WVALX vs. VIIIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Weitz Value Fund (WVALX) and Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WVALX achieves a -8.66% return, which is significantly lower than VIIIX's 8.21% return. Over the past 10 years, WVALX has underperformed VIIIX with an annualized return of 9.15%, while VIIIX has yielded a comparatively higher 15.70% annualized return.

WVALX

• 1D: -0.56%
• 1M: -1.68%
• YTD: -8.66%
• 6M: -9.62%
• 1Y: -7.83%
• 3Y*: 4.73%
• 5Y*: 2.25%
• 10Y*: 9.15%

VIIIX

• 1D: -1.44%
• 1M: -1.34%
• YTD: 8.21%
• 6M: 6.88%
• 1Y: 22.35%
• 3Y*: 21.22%
• 5Y*: 13.28%
• 10Y*: 15.70%

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

WVALX vs. VIIIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WVALX Weitz Value Fund	-8.66%	-0.21%	12.76%	29.72%	-22.89%	26.86%	18.41%	34.16%	-4.88%	15.60%
VIIIX Vanguard Institutional Index Fund Institutional Plus Shares	8.21%	17.87%	26.29%	25.79%	-18.14%	28.69%	18.41%	31.48%	-4.41%	21.82%

Correlation

The correlation between WVALX and VIIIX is 0.68, 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	0.68
Correlation (3Y) Calculated over the trailing 3-year period	0.79
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (10Y) Calculated over the trailing 10-year period	0.89
Correlation (All Time) Calculated using the full available price history since Jul 7, 1997	0.86

The correlation between WVALX and VIIIX shifts across timeframes, from 0.68 (1 year) to 0.89 (10 years), reflecting how their relationship changes across market environments.

Return for Risk

WVALX vs. VIIIX — Risk / Return Rank

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

WVALX

WVALX Risk / Return Rank: 1
WVALX Sharpe Ratio Rank: 1
WVALX Sortino Ratio Rank: 1
WVALX Omega Ratio Rank: 1
WVALX Calmar Ratio Rank: 1
WVALX Martin Ratio Rank: 1

VIIIX

VIIIX Risk / Return Rank: 52
VIIIX Sharpe Ratio Rank: 49
VIIIX Sortino Ratio Rank: 44
VIIIX Omega Ratio Rank: 47
VIIIX Calmar Ratio Rank: 53
VIIIX Martin Ratio Rank: 66

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.

WVALX vs. VIIIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Weitz Value Fund (WVALX) and Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX). 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.

	WVALX	VIIIX	Difference
Sharpe ratio: Return per unit of total volatility	-0.44	1.90	-2.34
Sortino ratio: Return per unit of downside risk	-0.52	2.59	-3.10
Omega ratio: Gain probability vs. loss probability	0.94	1.34	-0.40
Calmar ratio: Return relative to maximum drawdown	-0.36	2.68	-3.04
Martin ratio: Return relative to average drawdown	-0.95	12.03	-12.97

WVALX vs. VIIIX - Sharpe Ratio Comparison

The current WVALX Sharpe Ratio is -0.44, which is lower than the VIIIX Sharpe Ratio of 1.90. The chart below compares the historical Sharpe Ratios of WVALX and VIIIX, 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

WVALX vs. VIIIX - Drawdown Comparison

The maximum WVALX drawdown since its inception was -61.96%, which is greater than VIIIX's maximum drawdown of -55.18%. Use the drawdown chart below to compare losses from any high point for WVALX and VIIIX.

Drawdown Indicators

	WVALX	VIIIX	Difference
Max Drawdown Largest peak-to-trough decline	-61.96%	-55.18%	-6.78%
Max Drawdown (1Y) Largest decline over 1 year	-17.45%	-8.90%	-8.55%
Max Drawdown (3Y) Largest decline over 3 years	-19.92%	-18.75%	-1.17%
Max Drawdown (5Y) Largest decline over 5 years	-29.36%	-24.50%	-4.86%
Max Drawdown (10Y) Largest decline over 10 years	-32.57%	-33.79%	+1.22%
Current Drawdown Current decline from peak	-13.81%	-3.13%	-10.68%
Average Drawdown Average peak-to-trough decline	-7.74%	-10.00%	+2.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.68%	1.98%	+4.70%

Volatility

WVALX vs. VIIIX - Volatility Comparison

Weitz Value Fund (WVALX) and Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX) have volatilities of 4.92% and 4.90%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WVALX	VIIIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.92%	4.90%	+0.02%
Volatility (6M) Calculated over the trailing 6-month period	11.48%	9.93%	+1.55%
Volatility (1Y) Calculated over the trailing 1-year period	14.52%	12.57%	+1.95%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.27%	17.00%	+1.27%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.24%	18.08%	+0.16%

WVALX vs. VIIIX - Expense Ratio Comparison

WVALX has a 1.04% expense ratio, which is higher than VIIIX's 0.02% expense ratio.

Dividends

WVALX vs. VIIIX - Dividend Comparison

WVALX's dividend yield for the trailing twelve months is around 23.90%, more than VIIIX's 2.49% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
VIIIX Vanguard Institutional Index Fund Institutional Plus Shares	2.49%	2.11%	3.66%	2.66%	3.39%	4.79%	3.07%	2.86%	2.45%	1.84%	2.38%	2.47%
WVALX Weitz Value Fund	23.90%	21.83%	11.03%	5.38%	14.15%	3.77%	9.12%	4.70%	10.95%	7.16%	0.00%	12.93%

Frequently Asked Questions

Can I hold both WVALX and VIIIX in my portfolio?

WVALX and VIIIX have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WVALX or VIIIX?

WVALX has higher volatility (4.92%) compared to VIIIX (4.90%). In terms of maximum drawdown, WVALX dropped -61.96% vs VIIIX's -55.18%.

Which has better risk-adjusted returns?

VIIIX currently has the higher Sharpe Ratio (1.90 vs -0.44), 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.