FSAKX vs. VFFSX

Last updated Aug 1, 2026

FSAKX (Strategic Advisers U.S. Total Stock Fund) and VFFSX (Vanguard 500 Index Fund Institutional Select Shares) are both Large Cap Blend Equities funds - FSAKX tracks the Dow Jones U.S. Total Stock Market Index while VFFSX tracks the S&P 500 Index. Both are passively managed. Over the past year, FSAKX returned 16.06% vs 20.63% for VFFSX. Their 0.78 correlation means they have sometimes moved together and sometimes differently. FSAKX charges 0.28%/yr vs 0.01%/yr for VFFSX.

Performance

FSAKX vs. VFFSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Strategic Advisers U.S. Total Stock Fund (FSAKX) and Vanguard 500 Index Fund Institutional Select Shares (VFFSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FSAKX achieves a 7.25% return, which is significantly lower than VFFSX's 9.35% return.

FSAKX

• 1D: 1.61%
• 1M: -3.85%
• 6M: 4.62%
• YTD: 7.25%
• 1Y: 16.06%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 16.19%

VFFSX

• 1D: 1.66%
• 1M: -0.56%
• 6M: 7.79%
• YTD: 9.35%
• 1Y: 20.63%
• 3Y*: 19.03%
• 5Y*: 12.68%
• 10Y*: —
• ALL TIME*: 15.22%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
FSAKX Strategic Advisers U.S. Total Stock Fund	$0.00	$0.00	$0.00
VFFSX Vanguard 500 Index Fund Institutional Select Shares	$0.00	$0.00	$0.00

FSAKX vs. VFFSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024
FSAKX Strategic Advisers U.S. Total Stock Fund	7.25%	11.58%	13.73%
VFFSX Vanguard 500 Index Fund Institutional Select Shares	9.35%	17.87%	6.14%

Correlation

The correlation between FSAKX and VFFSX is 0.78, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.78
Correlation (All Time) Calculated using the full available price history since Jul 10, 2024	0.78

The correlation between FSAKX and VFFSX has been stable across timeframes, ranging from 0.78 to 0.78 - a consistent structural relationship.

Return for Risk

FSAKX vs. VFFSX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

FSAKX

FSAKX Risk / Return Rank: 55
FSAKX Sharpe Ratio Rank: 48
FSAKX Sortino Ratio Rank: 49
FSAKX Omega Ratio Rank: 46
FSAKX Calmar Ratio Rank: 63
FSAKX Martin Ratio Rank: 69

VFFSX

VFFSX Risk / Return Rank: 63
VFFSX Sharpe Ratio Rank: 61
VFFSX Sortino Ratio Rank: 57
VFFSX Omega Ratio Rank: 58
VFFSX Calmar Ratio Rank: 64
VFFSX Martin Ratio Rank: 76

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

FSAKX vs. VFFSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Strategic Advisers U.S. Total Stock Fund (FSAKX) and Vanguard 500 Index Fund Institutional Select Shares (VFFSX). 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.

	FSAKX	VFFSX	Difference
Sharpe ratio: Return per unit of total volatility	1.35	1.43	-0.08
Sortino ratio: Return per unit of downside risk	1.96	2.00	-0.04
Omega ratio: Gain probability vs. loss probability	1.24	1.26	-0.01
Calmar ratio: Return relative to maximum drawdown	2.16	2.06	+0.10
Martin ratio: Return relative to average drawdown	8.68	8.86	-0.18

FSAKX vs. VFFSX - Sharpe Ratio Comparison

The current FSAKX Sharpe Ratio is 1.35, which is comparable to the VFFSX Sharpe Ratio of 1.43. The chart below compares the historical Sharpe Ratios of FSAKX and VFFSX, 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

FSAKX vs. VFFSX - Drawdown Comparison

The maximum FSAKX drawdown since its inception was -19.58%, smaller than the maximum VFFSX drawdown of -33.82%. Use the drawdown chart below to compare losses from any high point for FSAKX and VFFSX.

Drawdown Indicators

	FSAKX	VFFSX	Difference
Max Drawdown Largest peak-to-trough decline	-19.58%	-33.82%	+14.24%
Max Drawdown (1Y) Largest decline over 1 year	-8.97%	-8.90%	-0.07%
Max Drawdown (3Y) Largest decline over 3 years	—	-18.75%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-24.51%	—
Current Drawdown Current decline from peak	-4.46%	-2.11%	-2.35%
Average Drawdown Average peak-to-trough decline	-2.67%	-4.46%	+1.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.30%	2.07%	+0.23%

Volatility

FSAKX vs. VFFSX - Volatility Comparison

Strategic Advisers U.S. Total Stock Fund (FSAKX) has a higher volatility of 4.48% compared to Vanguard 500 Index Fund Institutional Select Shares (VFFSX) at 3.45%. This indicates that FSAKX's price experiences larger fluctuations and is considered to be riskier than VFFSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSAKX	VFFSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.48%	3.45%	+1.03%
Volatility (6M) Calculated over the trailing 6-month period	10.97%	10.10%	+0.87%
Volatility (1Y) Calculated over the trailing 1-year period	14.40%	12.86%	+1.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.74%	17.02%	+2.72%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.74%	18.36%	+1.38%

FSAKX vs. VFFSX - Expense Ratio Comparison

FSAKX has a 0.28% expense ratio, which is higher than VFFSX's 0.01% expense ratio.

Dividends

FSAKX vs. VFFSX - Dividend Comparison

FSAKX's dividend yield for the trailing twelve months is around 2.82%, more than VFFSX's 1.09% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSAKX Strategic Advisers U.S. Total Stock Fund	2.82%	3.02%	11.09%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VFFSX Vanguard 500 Index Fund Institutional Select Shares	1.09%	1.14%	1.24%	1.46%	1.70%	1.61%	1.56%	2.15%	2.09%	1.81%

Frequently Asked Questions

Can I hold both FSAKX and VFFSX in my portfolio?

FSAKX and VFFSX have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FSAKX or VFFSX?

FSAKX has higher volatility (4.48%) compared to VFFSX (3.45%). In terms of maximum drawdown, FSAKX dropped -19.58% vs VFFSX's -33.82%.

Which has better risk-adjusted returns?

VFFSX currently has the higher Sharpe Ratio (1.43 vs 1.35), 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.