FIDFX vs. FSKAX

Last updated Jun 4, 2026

FIDFX (Fidelity Advisor Mid Cap Value Fund Class Z) and FSKAX (Fidelity Total Market Index Fund) are both mutual funds - FIDFX is a Mid Cap Value Equities fund managed by Fidelity, while FSKAX is a Large Cap Blend Equities fund managed by Fidelity. Over the past 5 years, FIDFX returned 12.52%/yr vs 13.08%/yr for FSKAX. Their correlation of 0.84 suggests significant overlap in exposure. FIDFX charges 0.45%/yr vs 0.01%/yr for FSKAX.

Performance

FIDFX vs. FSKAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor Mid Cap Value Fund Class Z (FIDFX) 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, FIDFX achieves a 19.26% return, which is significantly higher than FSKAX's 12.08% return.

FIDFX

• 1D: 1.27%
• 1M: 4.58%
• YTD: 19.26%
• 6M: 20.44%
• 1Y: 37.31%
• 3Y*: 22.50%
• 5Y*: 12.52%
• 10Y*: —

FSKAX

• 1D: 0.24%
• 1M: 5.80%
• YTD: 12.08%
• 6M: 11.98%
• 1Y: 29.13%
• 3Y*: 22.42%
• 5Y*: 13.08%
• 10Y*: 15.09%

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

FIDFX vs. FSKAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FIDFX Fidelity Advisor Mid Cap Value Fund Class Z	19.26%	13.16%	14.66%	22.69%	-10.52%	34.11%	1.15%	23.72%	-18.82%	13.56%
FSKAX Fidelity Total Market Index Fund	12.08%	17.06%	23.89%	26.12%	-19.53%	25.66%	20.79%	30.92%	-5.32%	16.94%

Correlation

The correlation between FIDFX and FSKAX is 0.77, 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	0.77
Correlation (3Y) Calculated over the trailing 3-year period	0.79
Correlation (5Y) Calculated over the trailing 5-year period	0.85
Correlation (All Time) Calculated using the full available price history since Feb 10, 2017	0.84

The correlation between FIDFX and FSKAX has been stable across timeframes, ranging from 0.77 to 0.85 - a consistent structural relationship.

Return for Risk

FIDFX vs. FSKAX — Risk / Return Rank

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

FIDFX

FIDFX Risk / Return Rank: 71
FIDFX Sharpe Ratio Rank: 69
FIDFX Sortino Ratio Rank: 69
FIDFX Omega Ratio Rank: 57
FIDFX Calmar Ratio Rank: 82
FIDFX Martin Ratio Rank: 79

FSKAX

FSKAX Risk / Return Rank: 71
FSKAX Sharpe Ratio Rank: 71
FSKAX Sortino Ratio Rank: 64
FSKAX Omega Ratio Rank: 63
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.

FIDFX vs. FSKAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Mid Cap Value Fund Class Z (FIDFX) 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.

	FIDFX	FSKAX	Difference
Sharpe ratio Return per unit of total volatility	2.43	2.46	-0.03
Sortino ratio Return per unit of downside risk	3.47	3.35	+0.12
Omega ratio Gain probability vs. loss probability	1.42	1.44	-0.02
Calmar ratio Return relative to maximum drawdown	3.83	3.38	+0.45
Martin ratio Return relative to average drawdown	14.74	15.52	-0.78
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FIDFX vs. FSKAX - Sharpe Ratio Comparison

The current FIDFX Sharpe Ratio is 2.43, which is comparable to the FSKAX Sharpe Ratio of 2.46. The chart below compares the historical Sharpe Ratios of FIDFX 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.

Sharpe Ratios by Period

	FIDFX	FSKAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.43	2.46	-0.03
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.62	0.76	-0.13
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.82	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.85	-0.35

Drawdowns

FIDFX vs. FSKAX - Drawdown Comparison

The maximum FIDFX drawdown since its inception was -44.98%, which is greater than FSKAX's maximum drawdown of -35.01%. Use the drawdown chart below to compare losses from any high point for FIDFX and FSKAX.

Drawdown Indicators

	FIDFX	FSKAX	Difference
Max Drawdown Largest peak-to-trough decline	-44.98%	-35.01%	-9.97%
Max Drawdown (1Y) Largest decline over 1 year	-10.31%	-8.92%	-1.39%
Max Drawdown (3Y) Largest decline over 3 years	-23.70%	-19.43%	-4.27%
Max Drawdown (5Y) Largest decline over 5 years	-23.70%	-25.39%	+1.69%
Max Drawdown (10Y) Largest decline over 10 years	—	-35.01%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-6.89%	-4.02%	-2.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.67%	1.94%	+0.73%

Volatility

FIDFX vs. FSKAX - Volatility Comparison

Fidelity Advisor Mid Cap Value Fund Class Z (FIDFX) has a higher volatility of 4.84% compared to Fidelity Total Market Index Fund (FSKAX) at 2.97%. This indicates that FIDFX's price experiences larger fluctuations and is considered to be riskier than FSKAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FIDFX	FSKAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.84%	2.97%	+1.87%
Volatility (6M) Calculated over the trailing 6-month period	12.06%	9.23%	+2.83%
Volatility (1Y) Calculated over the trailing 1-year period	16.24%	12.26%	+3.98%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.22%	17.41%	+2.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.64%	18.46%	+3.18%

FIDFX vs. FSKAX - Expense Ratio Comparison

FIDFX has a 0.45% expense ratio, which is higher than FSKAX's 0.02% expense ratio.

Dividends

FIDFX vs. FSKAX - Dividend Comparison

FIDFX's dividend yield for the trailing twelve months is around 6.63%, more than FSKAX's 0.93% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FIDFX Fidelity Advisor Mid Cap Value Fund Class Z	6.63%	8.32%	10.60%	1.30%	13.40%	1.43%	2.11%	2.03%	15.16%	9.15%	0.00%	0.00%
FSKAX Fidelity Total Market Index Fund	0.93%	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 FIDFX and FSKAX in my portfolio?

FIDFX and FSKAX have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FIDFX or FSKAX?

FIDFX has higher volatility (4.84%) compared to FSKAX (2.97%). In terms of maximum drawdown, FIDFX dropped -44.98% vs FSKAX's -35.01%.

Which has better risk-adjusted returns?

FSKAX currently has the higher Sharpe Ratio (2.46 vs 2.43), 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.