FGSIX vs. FSMAX

Last updated Jun 5, 2026

FGSIX (Federated MDT Mid Cap Growth Fund Institutional Shares) and FSMAX (Fidelity Extended Market Index Fund) are both Mid Cap Growth Equities funds. Over the past 10 years, FGSIX returned 15.28%/yr vs 12.06%/yr for FSMAX. Their correlation of 0.85 suggests significant overlap in exposure. FGSIX charges 0.85%/yr vs 0.04%/yr for FSMAX.

Performance

FGSIX vs. FSMAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Federated MDT Mid Cap Growth Fund Institutional Shares (FGSIX) and Fidelity Extended Market Index Fund (FSMAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FGSIX achieves a 0.37% return, which is significantly lower than FSMAX's 13.74% return. Over the past 10 years, FGSIX has outperformed FSMAX with an annualized return of 15.28%, while FSMAX has yielded a comparatively lower 12.06% annualized return.

FGSIX

• 1D: -1.39%
• 1M: 0.49%
• YTD: 0.37%
• 6M: 0.96%
• 1Y: 3.18%
• 3Y*: 19.56%
• 5Y*: 10.74%
• 10Y*: 15.28%

FSMAX

• 1D: -1.00%
• 1M: 3.43%
• YTD: 13.74%
• 6M: 11.91%
• 1Y: 28.69%
• 3Y*: 19.73%
• 5Y*: 6.54%
• 10Y*: 12.06%

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

FGSIX vs. FSMAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FGSIX Federated MDT Mid Cap Growth Fund Institutional Shares	0.37%	10.87%	33.37%	27.44%	-24.39%	22.77%	35.86%	28.34%	-3.00%	24.70%
FSMAX Fidelity Extended Market Index Fund	13.74%	11.40%	16.99%	25.36%	-26.44%	12.41%	32.28%	28.01%	-9.44%	18.04%

Correlation

The correlation between FGSIX and FSMAX is 0.17, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.17
Correlation (3Y) Calculated over the trailing 3-year period	0.55
Correlation (5Y) Calculated over the trailing 5-year period	0.75
Correlation (10Y) Calculated over the trailing 10-year period	0.81
Correlation (All Time) Calculated using the full available price history since Sep 9, 2011	0.85

Over the past year, the correlation between FGSIX and FSMAX has dropped to 0.17 - well below their long-term average of 0.85, suggesting their price drivers have been diverging.

Return for Risk

FGSIX vs. FSMAX — Risk / Return Rank

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

FGSIX

FGSIX Risk / Return Rank: 5
FGSIX Sharpe Ratio Rank: 4
FGSIX Sortino Ratio Rank: 4
FGSIX Omega Ratio Rank: 5
FGSIX Calmar Ratio Rank: 5
FGSIX Martin Ratio Rank: 5

FSMAX

FSMAX Risk / Return Rank: 40
FSMAX Sharpe Ratio Rank: 34
FSMAX Sortino Ratio Rank: 32
FSMAX Omega Ratio Rank: 30
FSMAX Calmar Ratio Rank: 54
FSMAX 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.

FGSIX vs. FSMAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Federated MDT Mid Cap Growth Fund Institutional Shares (FGSIX) and Fidelity Extended Market Index Fund (FSMAX). 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.

	FGSIX	FSMAX	Difference
Sharpe ratio: Return per unit of total volatility	0.26	1.69	-1.43
Sortino ratio: Return per unit of downside risk	0.49	2.38	-1.89
Omega ratio: Gain probability vs. loss probability	1.06	1.29	-0.23
Calmar ratio: Return relative to maximum drawdown	0.32	2.82	-2.50
Martin ratio: Return relative to average drawdown	0.91	9.96	-9.05
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FGSIX vs. FSMAX - Sharpe Ratio Comparison

The current FGSIX Sharpe Ratio is 0.26, which is lower than the FSMAX Sharpe Ratio of 1.69. The chart below compares the historical Sharpe Ratios of FGSIX and FSMAX, 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

	FGSIX	FSMAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.26	1.69	-1.43
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.48	0.29	+0.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.69	0.40	+0.29
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.46	+0.19

Drawdowns

FGSIX vs. FSMAX - Drawdown Comparison

The maximum FGSIX drawdown since its inception was -37.16%, smaller than the maximum FSMAX drawdown of -50.55%. Use the drawdown chart below to compare losses from any high point for FGSIX and FSMAX.

Drawdown Indicators

	FGSIX	FSMAX	Difference
Max Drawdown Largest peak-to-trough decline	-37.16%	-50.55%	+13.39%
Max Drawdown (1Y) Largest decline over 1 year	-13.36%	-10.26%	-3.10%
Max Drawdown (3Y) Largest decline over 3 years	-24.46%	-26.82%	+2.36%
Max Drawdown (5Y) Largest decline over 5 years	-35.67%	-36.31%	+0.64%
Max Drawdown (10Y) Largest decline over 10 years	-37.16%	-50.55%	+13.39%
Current Drawdown Current decline from peak	-3.93%	-1.00%	-2.93%
Average Drawdown Average peak-to-trough decline	-7.07%	-12.16%	+5.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.66%	2.90%	+1.76%

Volatility

FGSIX vs. FSMAX - Volatility Comparison

The current volatility for Federated MDT Mid Cap Growth Fund Institutional Shares (FGSIX) is 3.85%, while Fidelity Extended Market Index Fund (FSMAX) has a volatility of 4.84%. This indicates that FGSIX experiences smaller price fluctuations and is considered to be less risky than FSMAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FGSIX	FSMAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.85%	4.84%	-0.99%
Volatility (6M) Calculated over the trailing 6-month period	13.58%	12.48%	+1.10%
Volatility (1Y) Calculated over the trailing 1-year period	16.65%	17.20%	-0.55%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.41%	22.33%	+0.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.30%	30.23%	-7.93%

FGSIX vs. FSMAX - Expense Ratio Comparison

FGSIX has a 0.85% expense ratio, which is higher than FSMAX's 0.04% expense ratio.

Dividends

FGSIX vs. FSMAX - Dividend Comparison

FGSIX's dividend yield for the trailing twelve months is around 4.54%, more than FSMAX's 0.50% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FGSIX Federated MDT Mid Cap Growth Fund Institutional Shares	4.54%	4.56%	4.02%	0.00%	2.17%	24.31%	6.77%	7.83%	14.02%	13.59%	1.11%	24.86%
FSMAX Fidelity Extended Market Index Fund	0.50%	0.57%	0.48%	1.17%	1.90%	7.49%	2.14%	4.30%	6.09%	5.44%	4.85%	6.34%

Frequently Asked Questions

Can I hold both FGSIX and FSMAX in my portfolio?

FGSIX and FSMAX have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FGSIX or FSMAX?

FSMAX has higher volatility (4.84%) compared to FGSIX (3.85%). In terms of maximum drawdown, FGSIX dropped -37.16% vs FSMAX's -50.55%.

Which has better risk-adjusted returns?

FSMAX currently has the higher Sharpe Ratio (1.69 vs 0.26), 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.