FDESX vs. FOCKX

Last updated Jun 3, 2026

FDESX (Fidelity Advisor Diversified Stock Fund Class O) and FOCKX (Fidelity OTC Portfolio Class K) are both Large Cap Growth Equities funds from Fidelity. Over the past 10 years, FDESX returned 16.19%/yr vs 22.64%/yr for FOCKX. Their correlation of 0.90 suggests significant overlap in exposure. FDESX charges 0.45%/yr vs 0.73%/yr for FOCKX.

Performance

FDESX vs. FOCKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor Diversified Stock Fund Class O (FDESX) and Fidelity OTC Portfolio Class K (FOCKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FDESX achieves a 14.17% return, which is significantly lower than FOCKX's 26.69% return. Over the past 10 years, FDESX has underperformed FOCKX with an annualized return of 16.19%, while FOCKX has yielded a comparatively higher 22.64% annualized return.

FDESX

• 1D: 0.32%
• 1M: 5.14%
• YTD: 14.17%
• 6M: 14.12%
• 1Y: 31.70%
• 3Y*: 23.47%
• 5Y*: 13.80%
• 10Y*: 16.19%

FOCKX

• 1D: 0.83%
• 1M: 10.08%
• YTD: 26.69%
• 6M: 27.64%
• 1Y: 61.43%
• 3Y*: 34.58%
• 5Y*: 19.24%
• 10Y*: 22.64%

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

FDESX vs. FOCKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FDESX Fidelity Advisor Diversified Stock Fund Class O	14.17%	14.07%	28.08%	28.34%	-19.86%	28.26%	27.46%	28.23%	-5.62%	17.76%
FOCKX Fidelity OTC Portfolio Class K	26.69%	22.28%	38.91%	42.92%	-32.07%	25.06%	46.83%	39.36%	-3.18%	38.78%

Correlation

The correlation between FDESX and FOCKX is 0.92, 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	0.92
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.92
Correlation (10Y) Calculated over the trailing 10-year period	0.91
Correlation (All Time) Calculated using the full available price history since May 12, 2008	0.90

The correlation between FDESX and FOCKX has been stable across timeframes, ranging from 0.90 to 0.92 - a consistent structural relationship.

Return for Risk

FDESX vs. FOCKX — Risk / Return Rank

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

FDESX

FDESX Risk / Return Rank: 63
FDESX Sharpe Ratio Rank: 60
FDESX Sortino Ratio Rank: 54
FDESX Omega Ratio Rank: 55
FDESX Calmar Ratio Rank: 71
FDESX Martin Ratio Rank: 76

FOCKX

FOCKX Risk / Return Rank: 93
FOCKX Sharpe Ratio Rank: 97
FOCKX Sortino Ratio Rank: 90
FOCKX Omega Ratio Rank: 86
FOCKX Calmar Ratio Rank: 94
FOCKX Martin Ratio Rank: 96

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.

FDESX vs. FOCKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Diversified Stock Fund Class O (FDESX) and Fidelity OTC Portfolio Class K (FOCKX). 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.

	FDESX	FOCKX	Difference
Sharpe ratio Return per unit of total volatility	2.30	3.54	-1.24
Sortino ratio Return per unit of downside risk	3.08	4.39	-1.31
Omega ratio Gain probability vs. loss probability	1.41	1.59	-0.18
Calmar ratio Return relative to maximum drawdown	3.28	5.53	-2.25
Martin ratio Return relative to average drawdown	14.47	24.56	-10.09
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FDESX vs. FOCKX - Sharpe Ratio Comparison

The current FDESX Sharpe Ratio is 2.30, which is lower than the FOCKX Sharpe Ratio of 3.54. The chart below compares the historical Sharpe Ratios of FDESX and FOCKX, 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

	FDESX	FOCKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.30	3.54	-1.24
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.70	0.85	-0.15
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.83	1.01	-0.18
Sharpe Ratio (All Time) Calculated using the full available price history	0.49	0.73	-0.25

Drawdowns

FDESX vs. FOCKX - Drawdown Comparison

The maximum FDESX drawdown since its inception was -65.36%, which is greater than FOCKX's maximum drawdown of -53.33%. Use the drawdown chart below to compare losses from any high point for FDESX and FOCKX.

Drawdown Indicators

	FDESX	FOCKX	Difference
Max Drawdown Largest peak-to-trough decline	-65.36%	-53.33%	-12.03%
Max Drawdown (1Y) Largest decline over 1 year	-9.99%	-11.28%	+1.29%
Max Drawdown (3Y) Largest decline over 3 years	-27.06%	-24.83%	-2.23%
Max Drawdown (5Y) Largest decline over 5 years	-27.06%	-36.97%	+9.91%
Max Drawdown (10Y) Largest decline over 10 years	-30.39%	-36.97%	+6.58%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-14.04%	-8.38%	-5.66%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.26%	2.54%	-0.28%

Volatility

FDESX vs. FOCKX - Volatility Comparison

The current volatility for Fidelity Advisor Diversified Stock Fund Class O (FDESX) is 4.24%, while Fidelity OTC Portfolio Class K (FOCKX) has a volatility of 5.39%. This indicates that FDESX experiences smaller price fluctuations and is considered to be less risky than FOCKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FDESX	FOCKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.24%	5.39%	-1.15%
Volatility (6M) Calculated over the trailing 6-month period	11.16%	13.94%	-2.78%
Volatility (1Y) Calculated over the trailing 1-year period	14.27%	17.81%	-3.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.69%	22.68%	-2.99%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.56%	22.46%	-2.90%

FDESX vs. FOCKX - Expense Ratio Comparison

FDESX has a 0.45% expense ratio, which is lower than FOCKX's 0.73% expense ratio.

Dividends

FDESX vs. FOCKX - Dividend Comparison

FDESX's dividend yield for the trailing twelve months is around 5.77%, less than FOCKX's 5.96% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FDESX Fidelity Advisor Diversified Stock Fund Class O	5.77%	6.58%	13.97%	3.55%	9.06%	16.87%	5.28%	3.23%	13.54%	7.61%	1.67%	8.53%
FOCKX Fidelity OTC Portfolio Class K	5.96%	7.56%	16.42%	0.09%	3.97%	11.34%	6.18%	7.49%	7.81%	4.85%	3.25%	5.42%

Frequently Asked Questions

Can I hold both FDESX and FOCKX in my portfolio?

With a correlation of 0.92, FDESX and FOCKX 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, FDESX or FOCKX?

FOCKX has higher volatility (5.39%) compared to FDESX (4.24%). In terms of maximum drawdown, FDESX dropped -65.36% vs FOCKX's -53.33%.

Which has better risk-adjusted returns?

FOCKX currently has the higher Sharpe Ratio (3.54 vs 2.30), 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.