FCTDX vs. FSKAX

Last updated Jun 20, 2026

FCTDX (Strategic Advisers Fidelity U.S. Total Stock Fund) and FSKAX (Fidelity Total Market Index Fund) are both Large Cap Blend Equities funds from Fidelity. Over the past 5 years, FCTDX returned 13.19%/yr vs 12.91%/yr for FSKAX. With a 0.96 correlation, they move nearly in lockstep. FCTDX charges 0.61%/yr vs 0.01%/yr for FSKAX.

Performance

FCTDX vs. FSKAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Strategic Advisers Fidelity U.S. Total Stock Fund (FCTDX) and Fidelity Total Market Index Fund (FSKAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FCTDX achieves a 13.11% return, which is significantly higher than FSKAX's 10.81% return.

FCTDX

• 1D: 1.18%
• 1M: 2.68%
• YTD: 13.11%
• 6M: 14.37%
• 1Y: 27.63%
• 3Y*: 21.04%
• 5Y*: 13.19%
• 10Y*: —

FSKAX

• 1D: 1.15%
• 1M: 1.58%
• YTD: 10.81%
• 6M: 10.79%
• 1Y: 27.31%
• 3Y*: 20.73%
• 5Y*: 12.91%
• 10Y*: 15.04%

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

FCTDX vs. FSKAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
FCTDX Strategic Advisers Fidelity U.S. Total Stock Fund	13.11%	15.63%	23.13%	26.72%	-17.93%	25.40%	22.20%	29.99%	-5.32%
FSKAX Fidelity Total Market Index Fund	10.81%	17.06%	23.89%	26.12%	-19.53%	25.66%	20.79%	30.92%	-4.74%

Correlation

The correlation between FCTDX and FSKAX is 0.81, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.81
Correlation (3Y) Calculated over the trailing 3-year period	0.87
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (All Time) Calculated using the full available price history since Apr 2, 2018	0.96

The correlation between FCTDX and FSKAX shifts across timeframes, from 0.81 (1 year) to 0.96 (all time), reflecting how their relationship changes across market environments.

Return for Risk

FCTDX vs. FSKAX — Risk / Return Rank

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

FCTDX

FCTDX Risk / Return Rank: 83
FCTDX Sharpe Ratio Rank: 82
FCTDX Sortino Ratio Rank: 78
FCTDX Omega Ratio Rank: 75
FCTDX Calmar Ratio Rank: 85
FCTDX Martin Ratio Rank: 92

FSKAX

FSKAX Risk / Return Rank: 69
FSKAX Sharpe Ratio Rank: 68
FSKAX Sortino Ratio Rank: 61
FSKAX Omega Ratio Rank: 62
FSKAX Calmar Ratio Rank: 74
FSKAX Martin Ratio Rank: 82

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.

FCTDX vs. FSKAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Strategic Advisers Fidelity U.S. Total Stock Fund (FCTDX) and Fidelity Total Market Index Fund (FSKAX). 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.

	FCTDX	FSKAX	Difference
Sharpe ratio: Return per unit of total volatility	2.42	2.13	+0.29
Sortino ratio: Return per unit of downside risk	3.31	2.88	+0.43
Omega ratio: Gain probability vs. loss probability	1.44	1.38	+0.06
Calmar ratio: Return relative to maximum drawdown	3.71	3.08	+0.64
Martin ratio: Return relative to average drawdown	17.04	13.71	+3.32

FCTDX vs. FSKAX - Sharpe Ratio Comparison

The current FCTDX Sharpe Ratio is 2.42, which is comparable to the FSKAX Sharpe Ratio of 2.13. The chart below compares the historical Sharpe Ratios of FCTDX and FSKAX, 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

FCTDX vs. FSKAX - Drawdown Comparison

The maximum FCTDX drawdown since its inception was -34.51%, roughly equal to the maximum FSKAX drawdown of -35.01%. Use the drawdown chart below to compare losses from any high point for FCTDX and FSKAX.

Drawdown Indicators

	FCTDX	FSKAX	Difference
Max Drawdown Largest peak-to-trough decline	-34.51%	-35.01%	+0.50%
Max Drawdown (1Y) Largest decline over 1 year	-8.96%	-8.92%	-0.04%
Max Drawdown (3Y) Largest decline over 3 years	-19.08%	-19.43%	+0.35%
Max Drawdown (5Y) Largest decline over 5 years	-24.92%	-25.39%	+0.47%
Max Drawdown (10Y) Largest decline over 10 years	—	-35.01%	—
Current Drawdown Current decline from peak	-0.54%	-1.14%	+0.60%
Average Drawdown Average peak-to-trough decline	-5.17%	-4.01%	-1.16%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.82%	2.00%	-0.18%

Volatility

FCTDX vs. FSKAX - Volatility Comparison

Strategic Advisers Fidelity U.S. Total Stock Fund (FCTDX) and Fidelity Total Market Index Fund (FSKAX) have volatilities of 5.13% and 4.91%, 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

	FCTDX	FSKAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.13%	4.91%	+0.22%
Volatility (6M) Calculated over the trailing 6-month period	10.97%	10.16%	+0.81%
Volatility (1Y) Calculated over the trailing 1-year period	13.75%	12.88%	+0.87%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.60%	17.51%	+0.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.67%	18.50%	+1.17%

FCTDX vs. FSKAX - Expense Ratio Comparison

FCTDX has a 0.61% expense ratio, which is higher than FSKAX's 0.02% expense ratio.

Dividends

FCTDX vs. FSKAX - Dividend Comparison

FCTDX's dividend yield for the trailing twelve months is around 1.68%, more than FSKAX's 0.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FCTDX Strategic Advisers Fidelity U.S. Total Stock Fund	1.68%	1.90%	4.33%	2.26%	5.75%	7.90%	2.73%	2.89%	2.38%	0.00%	0.00%	0.00%
FSKAX Fidelity Total Market Index Fund	0.94%	1.01%	1.19%	1.41%	1.62%	1.15%	1.45%	1.94%	2.54%	2.07%	2.43%	0.82%

Frequently Asked Questions

Can I hold both FCTDX and FSKAX in my portfolio?

FCTDX and FSKAX have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FCTDX or FSKAX?

FCTDX has higher volatility (5.13%) compared to FSKAX (4.91%). In terms of maximum drawdown, FCTDX dropped -34.51% vs FSKAX's -35.01%.

Which has better risk-adjusted returns?

FCTDX currently has the higher Sharpe Ratio (2.42 vs 2.13), 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.