VFFSX vs. QLENX

Last updated Jun 24, 2026

VFFSX (Vanguard 500 Index Fund Institutional Select Shares) and QLENX (AQR Long-Short Equity Fund Class N) are both mutual funds - VFFSX is a Large Cap Blend Equities fund tracking the S&P 500 Index, while QLENX is a Long-Short fund actively managed by AQR Funds. VFFSX is passively managed, while QLENX is actively managed. Over the past 5 years, VFFSX returned 13.60%/yr vs 23.16%/yr for QLENX. At a 0.45 correlation, their price movements are largely independent. VFFSX charges 0.01%/yr vs 1.57%/yr for QLENX.

Performance

VFFSX vs. QLENX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard 500 Index Fund Institutional Select Shares (VFFSX) and AQR Long-Short Equity Fund Class N (QLENX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VFFSX achieves a 9.79% return, which is significantly higher than QLENX's -0.63% return.

VFFSX

• 1D: -0.36%
• 1M: 0.10%
• YTD: 9.79%
• 6M: 8.79%
• 1Y: 25.51%
• 3Y*: 21.39%
• 5Y*: 13.60%
• 10Y*: —

QLENX

• 1D: 0.20%
• 1M: 1.14%
• YTD: -0.63%
• 6M: -1.26%
• 1Y: 15.19%
• 3Y*: 25.46%
• 5Y*: 23.16%
• 10Y*: 11.97%

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

VFFSX vs. QLENX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VFFSX Vanguard 500 Index Fund Institutional Select Shares	9.79%	17.87%	25.00%	26.28%	-18.14%	29.24%	18.35%	31.88%	-4.42%	20.80%
QLENX AQR Long-Short Equity Fund Class N	-0.63%	34.07%	30.18%	23.67%	18.92%	30.70%	-14.18%	1.01%	-16.64%	15.48%

Correlation

The correlation between VFFSX and QLENX is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.45
Correlation (3Y) Calculated over the trailing 3-year period	0.45
Correlation (5Y) Calculated over the trailing 5-year period	0.33
Correlation (All Time) Calculated using the full available price history since Jan 3, 2017	0.45

The correlation between VFFSX and QLENX shifts across timeframes, from 0.33 (5 years) to 0.45 (all time), reflecting how their relationship changes across market environments.

Return for Risk

VFFSX vs. QLENX — Risk / Return Rank

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

VFFSX

VFFSX Risk / Return Rank: 65
VFFSX Sharpe Ratio Rank: 64
VFFSX Sortino Ratio Rank: 57
VFFSX Omega Ratio Rank: 59
VFFSX Calmar Ratio Rank: 68
VFFSX Martin Ratio Rank: 78

QLENX

QLENX Risk / Return Rank: 54
QLENX Sharpe Ratio Rank: 61
QLENX Sortino Ratio Rank: 66
QLENX Omega Ratio Rank: 58
QLENX Calmar Ratio Rank: 49
QLENX Martin Ratio Rank: 38

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.

VFFSX vs. QLENX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard 500 Index Fund Institutional Select Shares (VFFSX) and AQR Long-Short Equity Fund Class N (QLENX). 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.

	VFFSX	QLENX	Difference
Sharpe ratio: Return per unit of total volatility	2.15	2.11	+0.04
Sortino ratio: Return per unit of downside risk	2.91	3.08	-0.17
Omega ratio: Gain probability vs. loss probability	1.39	1.39	0.00
Calmar ratio: Return relative to maximum drawdown	3.02	2.56	+0.46
Martin ratio: Return relative to average drawdown	13.62	7.88	+5.75

VFFSX vs. QLENX - Sharpe Ratio Comparison

The current VFFSX Sharpe Ratio is 2.15, which is comparable to the QLENX Sharpe Ratio of 2.11. The chart below compares the historical Sharpe Ratios of VFFSX and QLENX, 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

VFFSX vs. QLENX - Drawdown Comparison

The maximum VFFSX drawdown since its inception was -33.82%, smaller than the maximum QLENX drawdown of -38.50%. Use the drawdown chart below to compare losses from any high point for VFFSX and QLENX.

Drawdown Indicators

	VFFSX	QLENX	Difference
Max Drawdown Largest peak-to-trough decline	-33.82%	-38.50%	+4.68%
Max Drawdown (1Y) Largest decline over 1 year	-8.90%	-6.09%	-2.81%
Max Drawdown (3Y) Largest decline over 3 years	-18.75%	-7.09%	-11.66%
Max Drawdown (5Y) Largest decline over 5 years	-24.51%	-17.19%	-7.32%
Max Drawdown (10Y) Largest decline over 10 years	—	-38.50%	—
Current Drawdown Current decline from peak	-1.72%	-1.26%	-0.46%
Average Drawdown Average peak-to-trough decline	-4.49%	-7.46%	+2.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.97%	1.97%	0.00%

Volatility

VFFSX vs. QLENX - Volatility Comparison

Vanguard 500 Index Fund Institutional Select Shares (VFFSX) has a higher volatility of 4.67% compared to AQR Long-Short Equity Fund Class N (QLENX) at 2.86%. This indicates that VFFSX's price experiences larger fluctuations and is considered to be riskier than QLENX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VFFSX	QLENX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.67%	2.86%	+1.81%
Volatility (6M) Calculated over the trailing 6-month period	9.84%	5.78%	+4.06%
Volatility (1Y) Calculated over the trailing 1-year period	12.50%	7.40%	+5.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.99%	10.01%	+6.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.42%	10.60%	+7.82%

VFFSX vs. QLENX - Expense Ratio Comparison

VFFSX has a 0.01% expense ratio, which is lower than QLENX's 1.57% expense ratio.

Dividends

VFFSX vs. QLENX - Dividend Comparison

VFFSX's dividend yield for the trailing twelve months is around 1.05%, less than QLENX's 1.65% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
QLENX AQR Long-Short Equity Fund Class N	1.65%	1.64%	7.13%	21.21%	14.09%	0.00%	1.59%	0.00%	6.09%	8.91%	2.87%	4.91%
VFFSX Vanguard 500 Index Fund Institutional Select Shares	1.05%	1.14%	1.24%	1.46%	1.70%	1.61%	1.56%	2.15%	2.09%	1.81%	0.00%	0.00%

Frequently Asked Questions

Can I hold both VFFSX and QLENX in my portfolio?

VFFSX and QLENX have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VFFSX or QLENX?

VFFSX has higher volatility (4.67%) compared to QLENX (2.86%). In terms of maximum drawdown, VFFSX dropped -33.82% vs QLENX's -38.50%.

Which has better risk-adjusted returns?

VFFSX currently has the higher Sharpe Ratio (2.15 vs 2.11), 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.