FSKGX vs. BRMKX

Last updated Jun 5, 2026

FSKGX (Fidelity Growth Strategies K6 Fund) and BRMKX (iShares Russell Mid-Cap Index Fund) are both mutual funds - FSKGX is a Mid Cap Growth Equities fund managed by Fidelity, while BRMKX is a Mid Cap Blend Equities fund managed by BlackRock. Over the past 5 years, FSKGX returned 8.60%/yr vs 8.16%/yr for BRMKX. Their correlation of 0.88 suggests significant overlap in exposure. FSKGX charges 0.45%/yr vs 0.06%/yr for BRMKX.

Performance

FSKGX vs. BRMKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Growth Strategies K6 Fund (FSKGX) and iShares Russell Mid-Cap Index Fund (BRMKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FSKGX achieves a 11.50% return, which is significantly lower than BRMKX's 12.49% return.

FSKGX

• 1D: -0.55%
• 1M: 2.62%
• YTD: 11.50%
• 6M: 5.02%
• 1Y: 10.41%
• 3Y*: 17.22%
• 5Y*: 8.60%
• 10Y*: —

BRMKX

• 1D: -0.29%
• 1M: 2.72%
• YTD: 12.49%
• 6M: 11.88%
• 1Y: 21.98%
• 3Y*: 17.39%
• 5Y*: 8.16%
• 10Y*: 11.64%

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

FSKGX vs. BRMKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSKGX Fidelity Growth Strategies K6 Fund	11.50%	7.82%	20.04%	21.58%	-26.20%	21.62%	29.50%	36.90%	-6.89%	10.43%
BRMKX iShares Russell Mid-Cap Index Fund	12.49%	10.48%	15.28%	17.30%	-17.22%	22.52%	17.17%	30.47%	-9.09%	9.94%

Correlation

The correlation between FSKGX and BRMKX is 0.85, 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	0.85
Correlation (3Y) Calculated over the trailing 3-year period	0.86
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (All Time) Calculated using the full available price history since May 26, 2017	0.88

The correlation between FSKGX and BRMKX has been stable across timeframes, ranging from 0.85 to 0.90 - a consistent structural relationship.

Return for Risk

FSKGX vs. BRMKX — Risk / Return Rank

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

FSKGX

FSKGX Risk / Return Rank: 7
FSKGX Sharpe Ratio Rank: 7
FSKGX Sortino Ratio Rank: 7
FSKGX Omega Ratio Rank: 7
FSKGX Calmar Ratio Rank: 7
FSKGX Martin Ratio Rank: 7

BRMKX

BRMKX Risk / Return Rank: 39
BRMKX Sharpe Ratio Rank: 32
BRMKX Sortino Ratio Rank: 32
BRMKX Omega Ratio Rank: 30
BRMKX Calmar Ratio Rank: 49
BRMKX Martin Ratio Rank: 50

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.

FSKGX vs. BRMKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Growth Strategies K6 Fund (FSKGX) and iShares Russell Mid-Cap Index Fund (BRMKX). 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.

	FSKGX	BRMKX	Difference
Sharpe ratio: Return per unit of total volatility	0.52	1.63	-1.11
Sortino ratio: Return per unit of downside risk	0.85	2.36	-1.51
Omega ratio: Gain probability vs. loss probability	1.10	1.29	-0.18
Calmar ratio: Return relative to maximum drawdown	0.65	2.67	-2.03
Martin ratio: Return relative to average drawdown	1.92	10.33	-8.40
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FSKGX vs. BRMKX - Sharpe Ratio Comparison

The current FSKGX Sharpe Ratio is 0.52, which is lower than the BRMKX Sharpe Ratio of 1.63. The chart below compares the historical Sharpe Ratios of FSKGX and BRMKX, 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

	FSKGX	BRMKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.52	1.63	-1.11
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.38	0.45	-0.07
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.60	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.55	0.62	-0.07

Drawdowns

FSKGX vs. BRMKX - Drawdown Comparison

The maximum FSKGX drawdown since its inception was -36.51%, smaller than the maximum BRMKX drawdown of -40.20%. Use the drawdown chart below to compare losses from any high point for FSKGX and BRMKX.

Drawdown Indicators

	FSKGX	BRMKX	Difference
Max Drawdown Largest peak-to-trough decline	-36.51%	-40.20%	+3.69%
Max Drawdown (1Y) Largest decline over 1 year	-16.39%	-8.17%	-8.22%
Max Drawdown (3Y) Largest decline over 3 years	-29.47%	-21.07%	-8.40%
Max Drawdown (5Y) Largest decline over 5 years	-36.51%	-26.04%	-10.47%
Max Drawdown (10Y) Largest decline over 10 years	—	-40.20%	—
Current Drawdown Current decline from peak	-0.55%	-0.29%	-0.26%
Average Drawdown Average peak-to-trough decline	-8.96%	-5.65%	-3.31%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.50%	2.11%	+3.39%

Volatility

FSKGX vs. BRMKX - Volatility Comparison

Fidelity Growth Strategies K6 Fund (FSKGX) has a higher volatility of 6.07% compared to iShares Russell Mid-Cap Index Fund (BRMKX) at 3.32%. This indicates that FSKGX's price experiences larger fluctuations and is considered to be riskier than BRMKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSKGX	BRMKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.07%	3.32%	+2.75%
Volatility (6M) Calculated over the trailing 6-month period	16.89%	9.90%	+6.99%
Volatility (1Y) Calculated over the trailing 1-year period	20.44%	13.42%	+7.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.01%	18.24%	+4.77%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.80%	19.31%	+3.49%

FSKGX vs. BRMKX - Expense Ratio Comparison

FSKGX has a 0.45% expense ratio, which is higher than BRMKX's 0.06% expense ratio.

Dividends

FSKGX vs. BRMKX - Dividend Comparison

FSKGX has not paid dividends to shareholders, while BRMKX's dividend yield for the trailing twelve months is around 5.29%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
BRMKX iShares Russell Mid-Cap Index Fund	5.29%	5.92%	6.43%	3.02%	3.67%	4.07%	2.86%	3.95%	3.87%	19.24%	2.11%
FSKGX Fidelity Growth Strategies K6 Fund	0.00%	0.00%	0.00%	1.37%	0.27%	26.04%	2.53%	0.50%	0.85%	0.30%	0.00%

Frequently Asked Questions

Can I hold both FSKGX and BRMKX in my portfolio?

FSKGX and BRMKX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FSKGX or BRMKX?

FSKGX has higher volatility (6.07%) compared to BRMKX (3.32%). In terms of maximum drawdown, FSKGX dropped -36.51% vs BRMKX's -40.20%.

Which has better risk-adjusted returns?

BRMKX currently has the higher Sharpe Ratio (1.63 vs 0.52), 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.