FBGKX vs. FUMIX

Last updated Aug 4, 2026

FBGKX (Fidelity Blue Chip Growth Fund Class K) and FUMIX (Fidelity SAI U.S. Momentum Index Fund) are both Large Cap Growth Equities funds from Fidelity. FBGKX is actively managed, while FUMIX is passively managed. Over the past 5 years, FBGKX returned 13.81%/yr vs 14.46%/yr for FUMIX. Their correlation of 0.86 means they have usually moved in the same direction. FBGKX charges 0.54%/yr vs 0.11%/yr for FUMIX.

Performance

FBGKX vs. FUMIX - 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 SAI U.S. Momentum Index Fund (FUMIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FBGKX achieves a 11.30% return, which is significantly lower than FUMIX's 21.44% return.

FBGKX

• 1D: 1.00%
• 1M: -3.22%
• 6M: 10.86%
• YTD: 11.30%
• 1Y: 25.51%
• 3Y*: 25.94%
• 5Y*: 13.81%
• 10Y*: 20.88%
• ALL TIME*: 15.76%

FUMIX

• 1D: 0.61%
• 1M: -3.35%
• 6M: 17.79%
• YTD: 21.44%
• 1Y: 27.18%
• 3Y*: 27.75%
• 5Y*: 14.46%
• 10Y*: —
• ALL TIME*: 16.87%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
FBGKX Fidelity Blue Chip Growth Fund Class K	$0.00	$0.00	$0.00
FUMIX Fidelity SAI U.S. Momentum Index Fund	$0.00	$0.00	$0.00

FBGKX vs. FUMIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FBGKX Fidelity Blue Chip Growth Fund Class K	11.30%	19.99%	39.87%	55.76%	-38.40%	22.74%	62.35%	33.56%	1.11%	27.70%
FUMIX Fidelity SAI U.S. Momentum Index Fund	21.44%	17.01%	33.39%	14.67%	-15.79%	22.56%	29.92%	24.16%	-1.41%	22.71%

Correlation

The correlation between FBGKX and FUMIX is 0.86, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.86
Correlation (3Y) Balances recent behavior with more history.	0.86
Correlation (5Y) Shows whether the relationship held over a longer period.	0.83
Correlation (All Time) Calculated using the full available price history since Feb 9, 2017	0.86

The correlation between FBGKX and FUMIX has been stable across timeframes, ranging from 0.83 to 0.86 - a consistent structural relationship.

Return for Risk

FBGKX vs. FUMIX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

FBGKX

FBGKX Risk / Return Rank: 35
FBGKX Sharpe Ratio Rank: 33
FBGKX Sortino Ratio Rank: 31
FBGKX Omega Ratio Rank: 31
FBGKX Calmar Ratio Rank: 41
FBGKX Martin Ratio Rank: 41

FUMIX

FUMIX Risk / Return Rank: 45
FUMIX Sharpe Ratio Rank: 38
FUMIX Sortino Ratio Rank: 37
FUMIX Omega Ratio Rank: 38
FUMIX Calmar Ratio Rank: 51
FUMIX Martin Ratio Rank: 59

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

FBGKX vs. FUMIX - 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 SAI U.S. Momentum Index Fund (FUMIX). 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.

	FBGKX	FUMIX	Difference
Sharpe ratio: Return per unit of total volatility	1.13	1.25	-0.12
Sortino ratio: Return per unit of downside risk	1.63	1.80	-0.17
Omega ratio: Gain probability vs. loss probability	1.20	1.23	-0.03
Calmar ratio: Return relative to maximum drawdown	1.80	2.04	-0.24
Martin ratio: Return relative to average drawdown	6.37	8.21	-1.84

FBGKX vs. FUMIX - Sharpe Ratio Comparison

The current FBGKX Sharpe Ratio is 1.13, which is comparable to the FUMIX Sharpe Ratio of 1.25. The chart below compares the historical Sharpe Ratios of FBGKX and FUMIX, 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

FBGKX vs. FUMIX - Drawdown Comparison

The maximum FBGKX drawdown since its inception was -48.90%, which is greater than FUMIX's maximum drawdown of -33.36%. Use the drawdown chart below to compare losses from any high point for FBGKX and FUMIX.

Drawdown Indicators

	FBGKX	FUMIX	Difference
Max Drawdown Largest peak-to-trough decline	-48.90%	-33.36%	-15.54%
Max Drawdown (1Y) Largest decline over 1 year	-12.63%	-12.87%	+0.24%
Max Drawdown (3Y) Largest decline over 3 years	-27.06%	-19.90%	-7.16%
Max Drawdown (5Y) Largest decline over 5 years	-43.03%	-27.66%	-15.37%
Max Drawdown (10Y) Largest decline over 10 years	-43.03%	—	—
Current Drawdown Current decline from peak	-6.86%	-8.48%	+1.62%
Average Drawdown Average peak-to-trough decline	-8.32%	-6.28%	-2.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.56%	3.19%	+0.37%

Volatility

FBGKX vs. FUMIX - Volatility Comparison

The current volatility for Fidelity Blue Chip Growth Fund Class K (FBGKX) is 6.63%, while Fidelity SAI U.S. Momentum Index Fund (FUMIX) has a volatility of 8.35%. This indicates that FBGKX experiences smaller price fluctuations and is considered to be less risky than FUMIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FBGKX	FUMIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.63%	8.35%	-1.72%
Volatility (6M) Calculated over the trailing 6-month period	16.12%	18.87%	-2.75%
Volatility (1Y) Calculated over the trailing 1-year period	20.11%	21.08%	-0.97%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.23%	21.81%	+3.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.83%	21.99%	+1.84%

FBGKX vs. FUMIX - Expense Ratio Comparison

FBGKX has a 0.54% expense ratio, which is higher than FUMIX's 0.11% expense ratio.

Dividends

FBGKX vs. FUMIX - Dividend Comparison

FBGKX's dividend yield for the trailing twelve months is around 1.70%, less than FUMIX's 2.28% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FBGKX Fidelity Blue Chip Growth Fund Class K	1.70%	1.89%	6.00%	0.93%	0.56%	8.77%	6.41%	3.70%	6.41%	4.26%	4.22%	5.36%
FUMIX Fidelity SAI U.S. Momentum Index Fund	2.28%	2.77%	5.89%	18.09%	2.10%	20.67%	8.68%	2.09%	3.84%	0.88%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FBGKX and FUMIX in my portfolio?

FBGKX and FUMIX have a correlation of 0.86, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FBGKX or FUMIX?

FUMIX has higher volatility (8.35%) compared to FBGKX (6.63%). In terms of maximum drawdown, FBGKX dropped -48.90% vs FUMIX's -33.36%.

Which has better risk-adjusted returns?

FUMIX currently has the higher Sharpe Ratio (1.25 vs 1.13), 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.