FZAHX vs. FOCKX

Last updated Jun 25, 2026

FZAHX (Fidelity Advisor Growth Opportunities Fund Class Z) and FOCKX (Fidelity OTC Portfolio Class K) are both Large Cap Growth Equities funds from Fidelity. Over the past 10 years, FZAHX returned 22.81%/yr vs 23.09%/yr for FOCKX. With a 0.95 correlation, they move nearly in lockstep. FZAHX charges 0.67%/yr vs 0.73%/yr for FOCKX.

Performance

FZAHX vs. FOCKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor Growth Opportunities Fund Class Z (FZAHX) 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, FZAHX achieves a 12.40% return, which is significantly lower than FOCKX's 23.33% return. Both investments have delivered pretty close results over the past 10 years, with FZAHX having a 22.81% annualized return and FOCKX not far ahead at 23.09%.

FZAHX

• 1D: -2.53%
• 1M: 0.13%
• YTD: 12.40%
• 6M: 11.01%
• 1Y: 30.11%
• 3Y*: 30.06%
• 5Y*: 11.35%
• 10Y*: 22.81%

FOCKX

• 1D: -2.96%
• 1M: 0.75%
• YTD: 23.33%
• 6M: 22.35%
• 1Y: 50.26%
• 3Y*: 32.90%
• 5Y*: 17.33%
• 10Y*: 23.09%

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

FZAHX vs. FOCKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FZAHX Fidelity Advisor Growth Opportunities Fund Class Z	12.40%	22.61%	39.23%	45.70%	-38.18%	11.74%	69.25%	40.80%	15.25%	35.10%
FOCKX Fidelity OTC Portfolio Class K	23.33%	22.28%	38.91%	42.92%	-32.07%	25.06%	46.83%	39.36%	-3.18%	38.78%

Correlation

The correlation between FZAHX and FOCKX is 0.94, 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	0.94
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	0.95
Correlation (All Time) Calculated using the full available price history since Aug 20, 2013	0.95

The correlation between FZAHX and FOCKX has been stable across timeframes, ranging from 0.94 to 0.96 - a consistent structural relationship.

Return for Risk

FZAHX vs. FOCKX — Risk / Return Rank

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

FZAHX

FZAHX Risk / Return Rank: 35
FZAHX Sharpe Ratio Rank: 37
FZAHX Sortino Ratio Rank: 33
FZAHX Omega Ratio Rank: 34
FZAHX Calmar Ratio Rank: 33
FZAHX Martin Ratio Rank: 36

FOCKX

FOCKX Risk / Return Rank: 85
FOCKX Sharpe Ratio Rank: 88
FOCKX Sortino Ratio Rank: 76
FOCKX Omega Ratio Rank: 76
FOCKX Calmar Ratio Rank: 92
FOCKX Martin Ratio Rank: 94

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.

FZAHX vs. FOCKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Growth Opportunities Fund Class Z (FZAHX) 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.

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.

	FZAHX	FOCKX	Difference
Sharpe ratio: Return per unit of total volatility	1.62	2.66	-1.04
Sortino ratio: Return per unit of downside risk	2.17	3.33	-1.15
Omega ratio: Gain probability vs. loss probability	1.28	1.45	-0.17
Calmar ratio: Return relative to maximum drawdown	2.00	4.68	-2.68
Martin ratio: Return relative to average drawdown	7.38	19.67	-12.29

FZAHX vs. FOCKX - Sharpe Ratio Comparison

The current FZAHX Sharpe Ratio is 1.62, which is lower than the FOCKX Sharpe Ratio of 2.66. The chart below compares the historical Sharpe Ratios of FZAHX 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.

Drawdowns

FZAHX vs. FOCKX - Drawdown Comparison

The maximum FZAHX drawdown since its inception was -44.45%, smaller than the maximum FOCKX drawdown of -53.33%. Use the drawdown chart below to compare losses from any high point for FZAHX and FOCKX.

Drawdown Indicators

	FZAHX	FOCKX	Difference
Max Drawdown Largest peak-to-trough decline	-44.45%	-53.33%	+8.88%
Max Drawdown (1Y) Largest decline over 1 year	-16.06%	-11.28%	-4.78%
Max Drawdown (3Y) Largest decline over 3 years	-26.58%	-24.83%	-1.75%
Max Drawdown (5Y) Largest decline over 5 years	-44.45%	-36.97%	-7.48%
Max Drawdown (10Y) Largest decline over 10 years	-44.45%	-36.97%	-7.48%
Current Drawdown Current decline from peak	-3.93%	-4.91%	+0.98%
Average Drawdown Average peak-to-trough decline	-8.19%	-8.36%	+0.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.35%	2.67%	+1.68%

Volatility

FZAHX vs. FOCKX - Volatility Comparison

The current volatility for Fidelity Advisor Growth Opportunities Fund Class Z (FZAHX) is 8.71%, while Fidelity OTC Portfolio Class K (FOCKX) has a volatility of 9.53%. This indicates that FZAHX 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

	FZAHX	FOCKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.71%	9.53%	-0.82%
Volatility (6M) Calculated over the trailing 6-month period	15.99%	16.17%	-0.18%
Volatility (1Y) Calculated over the trailing 1-year period	19.89%	19.81%	+0.08%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.08%	23.01%	+2.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.99%	22.57%	+1.42%

FZAHX vs. FOCKX - Expense Ratio Comparison

FZAHX has a 0.67% expense ratio, which is lower than FOCKX's 0.73% expense ratio.

Dividends

FZAHX vs. FOCKX - Dividend Comparison

FZAHX's dividend yield for the trailing twelve months is around 3.21%, less than FOCKX's 6.13% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FOCKX Fidelity OTC Portfolio Class K	6.13%	7.56%	16.42%	0.09%	3.97%	11.34%	6.18%	7.49%	7.81%	4.85%	3.25%	5.42%
FZAHX Fidelity Advisor Growth Opportunities Fund Class Z	3.21%	3.61%	0.00%	0.00%	0.00%	9.45%	5.15%	3.74%	11.00%	7.50%	14.42%	10.52%

Frequently Asked Questions

Can I hold both FZAHX and FOCKX in my portfolio?

With a correlation of 0.94, FZAHX 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, FZAHX or FOCKX?

FOCKX has higher volatility (9.53%) compared to FZAHX (8.71%). In terms of maximum drawdown, FZAHX dropped -44.45% vs FOCKX's -53.33%.

Which has better risk-adjusted returns?

FOCKX currently has the higher Sharpe Ratio (2.66 vs 1.62), 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.