FZAFX vs. FGDKX

Last updated Jun 4, 2026

FZAFX (Fidelity Advisor Equity Growth Fund Class Z) and FGDKX (Fidelity Growth Discovery Fund Class K) are both Large Cap Growth Equities funds from Fidelity. Over the past 10 years, FZAFX returned 18.32%/yr vs 19.23%/yr for FGDKX. With a 1.00 correlation, they move nearly in lockstep. FZAFX charges 0.60%/yr vs 0.68%/yr for FGDKX.

Performance

FZAFX vs. FGDKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor Equity Growth Fund Class Z (FZAFX) and Fidelity Growth Discovery Fund Class K (FGDKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with FZAFX having a 15.53% return and FGDKX slightly lower at 15.49%. Both investments have delivered pretty close results over the past 10 years, with FZAFX having a 18.32% annualized return and FGDKX not far ahead at 19.23%.

FZAFX

• 1D: 0.42%
• 1M: 7.33%
• YTD: 15.53%
• 6M: 14.97%
• 1Y: 31.11%
• 3Y*: 21.44%
• 5Y*: 12.89%
• 10Y*: 18.32%

FGDKX

• 1D: 0.42%
• 1M: 7.30%
• YTD: 15.49%
• 6M: 14.96%
• 1Y: 31.36%
• 3Y*: 25.62%
• 5Y*: 15.21%
• 10Y*: 19.23%

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

FZAFX vs. FGDKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FZAFX Fidelity Advisor Equity Growth Fund Class Z	15.53%	14.68%	18.15%	35.80%	-24.36%	23.09%	43.86%	35.68%	0.36%	35.37%
FGDKX Fidelity Growth Discovery Fund Class K	15.49%	15.23%	30.30%	35.73%	-24.34%	23.03%	43.54%	33.91%	-0.20%	34.68%

Correlation

The correlation between FZAFX and FGDKX is 1.00 - 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	1.00
Correlation (3Y) Calculated over the trailing 3-year period	1.00
Correlation (5Y) Calculated over the trailing 5-year period	1.00
Correlation (10Y) Calculated over the trailing 10-year period	1.00
Correlation (All Time) Calculated using the full available price history since Aug 21, 2013	1.00

The correlation between FZAFX and FGDKX has been stable across timeframes, ranging from 1.00 to 1.00 - a consistent structural relationship.

Return for Risk

FZAFX vs. FGDKX — Risk / Return Rank

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

FZAFX

FZAFX Risk / Return Rank: 44
FZAFX Sharpe Ratio Rank: 45
FZAFX Sortino Ratio Rank: 40
FZAFX Omega Ratio Rank: 42
FZAFX Calmar Ratio Rank: 45
FZAFX Martin Ratio Rank: 47

FGDKX

FGDKX Risk / Return Rank: 45
FGDKX Sharpe Ratio Rank: 46
FGDKX Sortino Ratio Rank: 41
FGDKX Omega Ratio Rank: 43
FGDKX Calmar Ratio Rank: 47
FGDKX Martin Ratio Rank: 48

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.

FZAFX vs. FGDKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Equity Growth Fund Class Z (FZAFX) and Fidelity Growth Discovery Fund Class K (FGDKX). 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.

	FZAFX	FGDKX	Difference
Sharpe ratio: Return per unit of total volatility	1.96	1.98	-0.02
Sortino ratio: Return per unit of downside risk	2.65	2.67	-0.02
Omega ratio: Gain probability vs. loss probability	1.35	1.35	0.00
Calmar ratio: Return relative to maximum drawdown	2.55	2.59	-0.04
Martin ratio: Return relative to average drawdown	9.75	9.89	-0.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FZAFX vs. FGDKX - Sharpe Ratio Comparison

The current FZAFX Sharpe Ratio is 1.96, which is comparable to the FGDKX Sharpe Ratio of 1.98. The chart below compares the historical Sharpe Ratios of FZAFX and FGDKX, 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

	FZAFX	FGDKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.96	1.98	-0.02
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.63	0.75	-0.12
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.89	0.94	-0.05
Sharpe Ratio (All Time) Calculated using the full available price history	0.84	0.64	+0.21

Drawdowns

FZAFX vs. FGDKX - Drawdown Comparison

The maximum FZAFX drawdown since its inception was -31.13%, smaller than the maximum FGDKX drawdown of -55.39%. Use the drawdown chart below to compare losses from any high point for FZAFX and FGDKX.

Drawdown Indicators

	FZAFX	FGDKX	Difference
Max Drawdown Largest peak-to-trough decline	-31.13%	-55.39%	+24.26%
Max Drawdown (1Y) Largest decline over 1 year	-12.55%	-12.51%	-0.04%
Max Drawdown (3Y) Largest decline over 3 years	-29.19%	-23.41%	-5.78%
Max Drawdown (5Y) Largest decline over 5 years	-29.73%	-29.75%	+0.02%
Max Drawdown (10Y) Largest decline over 10 years	-31.13%	-31.09%	-0.04%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-5.78%	-8.67%	+2.89%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.28%	3.27%	+0.01%

Volatility

FZAFX vs. FGDKX - Volatility Comparison

Fidelity Advisor Equity Growth Fund Class Z (FZAFX) and Fidelity Growth Discovery Fund Class K (FGDKX) have volatilities of 4.18% and 4.16%, 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

	FZAFX	FGDKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.18%	4.16%	+0.02%
Volatility (6M) Calculated over the trailing 6-month period	12.69%	12.70%	-0.01%
Volatility (1Y) Calculated over the trailing 1-year period	16.32%	16.35%	-0.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.62%	20.37%	+0.25%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.76%	20.60%	+0.16%

FZAFX vs. FGDKX - Expense Ratio Comparison

FZAFX has a 0.60% expense ratio, which is lower than FGDKX's 0.68% expense ratio.

Dividends

FZAFX vs. FGDKX - Dividend Comparison

FZAFX's dividend yield for the trailing twelve months is around 0.44%, less than FGDKX's 1.43% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FGDKX Fidelity Growth Discovery Fund Class K	1.43%	1.65%	12.82%	2.63%	3.69%	13.53%	9.71%	4.37%	5.13%	4.92%	0.15%	0.28%
FZAFX Fidelity Advisor Equity Growth Fund Class Z	0.44%	0.51%	0.00%	0.48%	1.93%	11.39%	10.84%	9.53%	6.38%	11.66%	5.87%	0.00%

Frequently Asked Questions

Can I hold both FZAFX and FGDKX in my portfolio?

With a correlation of 1.00, FZAFX and FGDKX 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, FZAFX or FGDKX?

FZAFX has higher volatility (4.18%) compared to FGDKX (4.16%). In terms of maximum drawdown, FZAFX dropped -31.13% vs FGDKX's -55.39%.

Which has better risk-adjusted returns?

FGDKX currently has the higher Sharpe Ratio (1.98 vs 1.96), 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.