FDTOX vs. FXAIX

Last updated Jun 23, 2026

FDTOX (Fidelity Advisor Diversified Stock Fund Class A) and FXAIX (Fidelity 500 Index Fund) are both mutual funds - FDTOX is a Large Cap Growth Equities fund managed by Fidelity, while FXAIX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, FDTOX returned 16.06%/yr vs 15.58%/yr for FXAIX. With a 0.96 correlation, they move nearly in lockstep. FDTOX charges 0.80%/yr vs 0.02%/yr for FXAIX.

Performance

FDTOX vs. FXAIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor Diversified Stock Fund Class A (FDTOX) and Fidelity 500 Index Fund (FXAIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FDTOX achieves a 14.44% return, which is significantly higher than FXAIX's 10.19% return. Both investments have delivered pretty close results over the past 10 years, with FDTOX having a 16.06% annualized return and FXAIX not far behind at 15.58%.

FDTOX

• 1D: 1.32%
• 1M: 2.54%
• YTD: 14.44%
• 6M: 13.68%
• 1Y: 30.97%
• 3Y*: 22.11%
• 5Y*: 13.87%
• 10Y*: 16.06%

FXAIX

• 1D: 1.09%
• 1M: 0.47%
• YTD: 10.19%
• 6M: 9.68%
• 1Y: 27.18%
• 3Y*: 20.98%
• 5Y*: 14.10%
• 10Y*: 15.58%

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

FDTOX vs. FXAIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FDTOX Fidelity Advisor Diversified Stock Fund Class A	14.44%	13.68%	27.66%	27.89%	-20.14%	27.77%	27.02%	27.81%	-5.95%	17.73%
FXAIX Fidelity 500 Index Fund	10.19%	17.84%	25.01%	26.29%	-18.14%	28.71%	18.42%	31.48%	-4.43%	21.82%

Correlation

The correlation between FDTOX and FXAIX is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since May 4, 2011	0.96

The correlation between FDTOX and FXAIX has been stable across timeframes, ranging from 0.95 to 0.96 - a consistent structural relationship.

Return for Risk

FDTOX vs. FXAIX — Risk / Return Rank

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

FDTOX

FDTOX Risk / Return Rank: 59
FDTOX Sharpe Ratio Rank: 55
FDTOX Sortino Ratio Rank: 48
FDTOX Omega Ratio Rank: 51
FDTOX Calmar Ratio Rank: 69
FDTOX Martin Ratio Rank: 75

FXAIX

FXAIX Risk / Return Rank: 66
FXAIX Sharpe Ratio Rank: 64
FXAIX Sortino Ratio Rank: 59
FXAIX Omega Ratio Rank: 61
FXAIX Calmar Ratio Rank: 68
FXAIX Martin Ratio Rank: 79

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.

FDTOX vs. FXAIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Diversified Stock Fund Class A (FDTOX) and Fidelity 500 Index Fund (FXAIX). 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.

	FDTOX	FXAIX	Difference
Sharpe ratio: Return per unit of total volatility	2.01	2.17	-0.15
Sortino ratio: Return per unit of downside risk	2.68	2.93	-0.25
Omega ratio: Gain probability vs. loss probability	1.36	1.39	-0.03
Calmar ratio: Return relative to maximum drawdown	3.06	3.04	+0.02
Martin ratio: Return relative to average drawdown	13.16	13.75	-0.59

FDTOX vs. FXAIX - Sharpe Ratio Comparison

The current FDTOX Sharpe Ratio is 2.01, which is comparable to the FXAIX Sharpe Ratio of 2.17. The chart below compares the historical Sharpe Ratios of FDTOX and FXAIX, 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

FDTOX vs. FXAIX - Drawdown Comparison

The maximum FDTOX drawdown since its inception was -72.07%, which is greater than FXAIX's maximum drawdown of -33.79%. Use the drawdown chart below to compare losses from any high point for FDTOX and FXAIX.

Drawdown Indicators

	FDTOX	FXAIX	Difference
Max Drawdown Largest peak-to-trough decline	-72.07%	-33.79%	-38.28%
Max Drawdown (1Y) Largest decline over 1 year	-10.04%	-8.89%	-1.15%
Max Drawdown (3Y) Largest decline over 3 years	-27.38%	-18.76%	-8.62%
Max Drawdown (5Y) Largest decline over 5 years	-27.38%	-24.50%	-2.88%
Max Drawdown (10Y) Largest decline over 10 years	-30.39%	-33.79%	+3.40%
Current Drawdown Current decline from peak	-0.36%	-1.36%	+1.00%
Average Drawdown Average peak-to-trough decline	-19.50%	-3.79%	-15.71%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.33%	1.96%	+0.37%

Volatility

FDTOX vs. FXAIX - Volatility Comparison

Fidelity Advisor Diversified Stock Fund Class A (FDTOX) has a higher volatility of 6.26% compared to Fidelity 500 Index Fund (FXAIX) at 4.77%. This indicates that FDTOX's price experiences larger fluctuations and is considered to be riskier than FXAIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FDTOX	FXAIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.26%	4.77%	+1.49%
Volatility (6M) Calculated over the trailing 6-month period	12.44%	9.91%	+2.53%
Volatility (1Y) Calculated over the trailing 1-year period	15.28%	12.47%	+2.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.91%	17.01%	+2.90%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.66%	18.11%	+1.55%

FDTOX vs. FXAIX - Expense Ratio Comparison

FDTOX has a 0.80% expense ratio, which is higher than FXAIX's 0.02% expense ratio.

Dividends

FDTOX vs. FXAIX - Dividend Comparison

FDTOX's dividend yield for the trailing twelve months is around 5.79%, more than FXAIX's 1.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FDTOX Fidelity Advisor Diversified Stock Fund Class A	5.79%	6.62%	14.36%	3.39%	9.03%	17.16%	5.14%	2.99%	13.50%	7.81%	1.38%	8.36%
FXAIX Fidelity 500 Index Fund	1.04%	1.11%	1.25%	1.45%	1.69%	1.22%	1.60%	2.06%	2.72%	1.97%	2.52%	2.83%

Frequently Asked Questions

Can I hold both FDTOX and FXAIX in my portfolio?

With a correlation of 0.95, FDTOX and FXAIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, FDTOX or FXAIX?

FDTOX has higher volatility (6.26%) compared to FXAIX (4.77%). In terms of maximum drawdown, FDTOX dropped -72.07% vs FXAIX's -33.79%.

Which has better risk-adjusted returns?

FXAIX currently has the higher Sharpe Ratio (2.17 vs 2.01), 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.