FECGX vs. BDSKX

Last updated Apr 1, 2026

Compare and contrast key facts about Fidelity Small Cap Growth Index Fund (FECGX) and BlackRock Advantage Small Cap Core Fund Class K (BDSKX).

FECGX is managed by Fidelity. It was launched on Jul 11, 2019. BDSKX is a passively managed fund by BlackRock that tracks the performance of the Russell 2000 Index. It was launched on Mar 14, 2013.

Performance

FECGX vs. BDSKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Small Cap Growth Index Fund (FECGX) and BlackRock Advantage Small Cap Core Fund Class K (BDSKX). The values are adjusted to include any dividend payments, if applicable.

FECGX vs. BDSKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
FECGX Fidelity Small Cap Growth Index Fund	-6.77%	13.04%	15.26%	18.90%	-26.17%	2.83%	34.41%	7.11%
BDSKX BlackRock Advantage Small Cap Core Fund Class K	-1.90%	13.76%	11.96%	16.49%	-19.20%	14.87%	19.60%	11.14%

Returns By Period

In the year-to-date period, FECGX achieves a -6.77% return, which is significantly lower than BDSKX's -1.90% return.

FECGX

• 1D: -2.02%
• 1M: -10.15%
• YTD: -6.77%
• 6M: -5.65%
• 1Y: 18.56%
• 3Y*: 10.79%
• 5Y*: 0.89%
• 10Y*: —

BDSKX

• 1D: -1.60%
• 1M: -7.71%
• YTD: -1.90%
• 6M: 1.03%
• 1Y: 22.37%
• 3Y*: 12.30%
• 5Y*: 3.87%
• 10Y*: —

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

FECGX vs. BDSKX - Expense Ratio Comparison

FECGX has a 0.05% expense ratio, which is lower than BDSKX's 0.45% expense ratio.

BDSKX

BlackRock Advantage Small Cap Core Fund Class K

FECGX

Fidelity Small Cap Growth Index Fund

Return for Risk

FECGX vs. BDSKX — Risk / Return Rank

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

FECGX

FECGX Risk / Return Rank: 33
FECGX Sharpe Ratio Rank: 32
FECGX Sortino Ratio Rank: 35
FECGX Omega Ratio Rank: 28
FECGX Calmar Ratio Rank: 40
FECGX Martin Ratio Rank: 33

BDSKX

BDSKX Risk / Return Rank: 53
BDSKX Sharpe Ratio Rank: 49
BDSKX Sortino Ratio Rank: 53
BDSKX Omega Ratio Rank: 43
BDSKX Calmar Ratio Rank: 60
BDSKX Martin Ratio Rank: 59

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.

FECGX vs. BDSKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Small Cap Growth Index Fund (FECGX) and BlackRock Advantage Small Cap Core Fund Class K (BDSKX). 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.

	FECGX	BDSKX	Difference
Sharpe ratio Return per unit of total volatility	0.71	0.96	-0.25
Sortino ratio Return per unit of downside risk	1.15	1.45	-0.30
Omega ratio Gain probability vs. loss probability	1.14	1.19	-0.04
Calmar ratio Return relative to maximum drawdown	1.02	1.41	-0.39
Martin ratio Return relative to average drawdown	3.51	5.64	-2.13
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FECGX vs. BDSKX - Sharpe Ratio Comparison

The current FECGX Sharpe Ratio is 0.71, which is comparable to the BDSKX Sharpe Ratio of 0.96. The chart below compares the historical Sharpe Ratios of FECGX and BDSKX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	FECGX	BDSKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.71	0.96	-0.25
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.04	0.17	-0.14
Sharpe Ratio (All Time) Calculated using the full available price history	0.26	0.37	-0.11

Correlation

The correlation between FECGX and BDSKX is 0.96, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

FECGX vs. BDSKX - Dividend Comparison

FECGX's dividend yield for the trailing twelve months is around 0.58%, less than BDSKX's 4.89% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
FECGX Fidelity Small Cap Growth Index Fund	0.58%	0.54%	1.25%	0.81%	0.80%	3.43%	1.00%	0.29%	0.00%	0.00%
BDSKX BlackRock Advantage Small Cap Core Fund Class K	4.89%	4.80%	0.81%	1.01%	3.59%	12.08%	2.59%	1.72%	5.70%	2.33%

Drawdowns

FECGX vs. BDSKX - Drawdown Comparison

The maximum FECGX drawdown since its inception was -41.85%, roughly equal to the maximum BDSKX drawdown of -43.30%. Use the drawdown chart below to compare losses from any high point for FECGX and BDSKX.

Drawdown Indicators

	FECGX	BDSKX	Difference
Max Drawdown Largest peak-to-trough decline	-41.85%	-43.30%	+1.45%
Max Drawdown (1Y) Largest decline over 1 year	-14.81%	-13.88%	-0.93%
Max Drawdown (5Y) Largest decline over 5 years	-40.34%	-31.65%	-8.69%
Current Drawdown Current decline from peak	-14.81%	-9.88%	-4.93%
Average Drawdown Average peak-to-trough decline	-16.11%	-9.66%	-6.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.30%	3.47%	+0.83%

Volatility

FECGX vs. BDSKX - Volatility Comparison

Fidelity Small Cap Growth Index Fund (FECGX) has a higher volatility of 7.58% compared to BlackRock Advantage Small Cap Core Fund Class K (BDSKX) at 6.85%. This indicates that FECGX's price experiences larger fluctuations and is considered to be riskier than BDSKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FECGX	BDSKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.58%	6.85%	+0.73%
Volatility (6M) Calculated over the trailing 6-month period	16.01%	14.38%	+1.63%
Volatility (1Y) Calculated over the trailing 1-year period	25.07%	23.16%	+1.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.46%	22.53%	+1.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.27%	23.87%	+3.40%