FBGKX vs. FGDKX

Last updated Jun 5, 2026

FBGKX (Fidelity Blue Chip Growth Fund Class K) and FGDKX (Fidelity Growth Discovery Fund Class K) are both Large Cap Growth Equities funds from Fidelity. Over the past 10 years, FBGKX returned 21.95%/yr vs 19.11%/yr for FGDKX. With a 0.97 correlation, they move nearly in lockstep. Both charge a 0.68% expense ratio.

Performance

FBGKX vs. FGDKX - Performance Comparison

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

Returns By Period

In the year-to-date period, FBGKX achieves a 18.22% return, which is significantly higher than FGDKX's 14.34% return. Over the past 10 years, FBGKX has outperformed FGDKX with an annualized return of 21.95%, while FGDKX has yielded a comparatively lower 19.11% annualized return.

FBGKX

• 1D: -0.31%
• 1M: 7.83%
• YTD: 18.22%
• 6M: 19.06%
• 1Y: 43.44%
• 3Y*: 32.50%
• 5Y*: 16.76%
• 10Y*: 21.95%

FGDKX

• 1D: -0.99%
• 1M: 5.61%
• YTD: 14.34%
• 6M: 13.49%
• 1Y: 29.40%
• 3Y*: 25.21%
• 5Y*: 14.67%
• 10Y*: 19.11%

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

FBGKX vs. FGDKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FBGKX Fidelity Blue Chip Growth Fund Class K	18.22%	19.99%	39.87%	55.76%	-38.40%	22.74%	62.35%	33.56%	1.11%	36.08%
FGDKX Fidelity Growth Discovery Fund Class K	14.34%	15.23%	30.30%	35.73%	-24.34%	23.03%	43.54%	33.91%	-0.20%	34.68%

Correlation

The correlation between FBGKX and FGDKX is 0.97 - 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	0.97
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since May 16, 2008	0.97

The correlation between FBGKX and FGDKX has been stable across timeframes, ranging from 0.96 to 0.97 - a consistent structural relationship.

Return for Risk

FBGKX vs. FGDKX — Risk / Return Rank

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

FBGKX

FBGKX Risk / Return Rank: 72
FBGKX Sharpe Ratio Rank: 78
FBGKX Sortino Ratio Rank: 63
FBGKX Omega Ratio Rank: 62
FBGKX Calmar Ratio Rank: 79
FBGKX Martin Ratio Rank: 81

FGDKX

FGDKX Risk / Return Rank: 40
FGDKX Sharpe Ratio Rank: 41
FGDKX Sortino Ratio Rank: 36
FGDKX Omega Ratio Rank: 38
FGDKX Calmar Ratio Rank: 41
FGDKX Martin Ratio Rank: 44

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.

FBGKX vs. FGDKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Blue Chip Growth Fund Class K (FBGKX) 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.

	FBGKX	FGDKX	Difference
Sharpe ratio: Return per unit of total volatility	2.58	1.85	+0.73
Sortino ratio: Return per unit of downside risk	3.33	2.52	+0.81
Omega ratio: Gain probability vs. loss probability	1.44	1.33	+0.11
Calmar ratio: Return relative to maximum drawdown	3.57	2.42	+1.14
Martin ratio: Return relative to average drawdown	15.08	9.25	+5.83
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FBGKX vs. FGDKX - Sharpe Ratio Comparison

The current FBGKX Sharpe Ratio is 2.58, which is higher than the FGDKX Sharpe Ratio of 1.85. The chart below compares the historical Sharpe Ratios of FBGKX 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

	FBGKX	FGDKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.58	1.85	+0.73
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.68	0.72	-0.05
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.93	0.93	0.00
Sharpe Ratio (All Time) Calculated using the full available price history	0.70	0.63	+0.07

Drawdowns

FBGKX vs. FGDKX - Drawdown Comparison

The maximum FBGKX drawdown since its inception was -48.90%, smaller than the maximum FGDKX drawdown of -55.39%. Use the drawdown chart below to compare losses from any high point for FBGKX and FGDKX.

Drawdown Indicators

	FBGKX	FGDKX	Difference
Max Drawdown Largest peak-to-trough decline	-48.90%	-55.39%	+6.49%
Max Drawdown (1Y) Largest decline over 1 year	-12.63%	-12.51%	-0.12%
Max Drawdown (3Y) Largest decline over 3 years	-27.06%	-23.41%	-3.65%
Max Drawdown (5Y) Largest decline over 5 years	-43.03%	-29.75%	-13.28%
Max Drawdown (10Y) Largest decline over 10 years	-43.03%	-31.09%	-11.94%
Current Drawdown Current decline from peak	-0.31%	-0.99%	+0.68%
Average Drawdown Average peak-to-trough decline	-8.36%	-8.67%	+0.31%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.98%	3.27%	-0.29%

Volatility

FBGKX vs. FGDKX - Volatility Comparison

Fidelity Blue Chip Growth Fund Class K (FBGKX) and Fidelity Growth Discovery Fund Class K (FGDKX) have volatilities of 4.19% and 4.36%, 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

	FBGKX	FGDKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.19%	4.36%	-0.17%
Volatility (6M) Calculated over the trailing 6-month period	13.01%	12.75%	+0.26%
Volatility (1Y) Calculated over the trailing 1-year period	17.46%	16.38%	+1.08%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.87%	20.37%	+4.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.68%	20.60%	+3.08%

FBGKX vs. FGDKX - Expense Ratio Comparison

Both FBGKX and FGDKX have an expense ratio of 0.68%.

Dividends

FBGKX vs. FGDKX - Dividend Comparison

FBGKX's dividend yield for the trailing twelve months is around 1.60%, more than FGDKX's 1.44% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FBGKX Fidelity Blue Chip Growth Fund Class K	1.60%	1.89%	6.00%	0.93%	0.56%	8.77%	6.41%	3.70%	6.41%	4.26%	4.22%	5.36%
FGDKX Fidelity Growth Discovery Fund Class K	1.44%	1.65%	12.82%	2.63%	3.69%	13.53%	9.71%	4.37%	5.13%	4.92%	0.15%	0.28%

Frequently Asked Questions

Can I hold both FBGKX and FGDKX in my portfolio?

With a correlation of 0.97, FBGKX 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, FBGKX or FGDKX?

FGDKX has higher volatility (4.36%) compared to FBGKX (4.19%). In terms of maximum drawdown, FBGKX dropped -48.90% vs FGDKX's -55.39%.

Which has better risk-adjusted returns?

FBGKX currently has the higher Sharpe Ratio (2.58 vs 1.85), 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.