FISGX vs. FMDGX

Last updated Jun 4, 2026

FISGX (Nuveen Mid Cap Growth Opportunities Fund) and FMDGX (Fidelity Mid Cap Growth Index Fund) are both Mid Cap Growth Equities funds. Over the past 5 years, FISGX returned 4.77%/yr vs 7.23%/yr for FMDGX. With a 0.96 correlation, they move nearly in lockstep. FISGX charges 0.92%/yr vs 0.05%/yr for FMDGX.

Performance

FISGX vs. FMDGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Nuveen Mid Cap Growth Opportunities Fund (FISGX) and Fidelity Mid Cap Growth Index Fund (FMDGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FISGX achieves a 15.94% return, which is significantly higher than FMDGX's 4.88% return.

FISGX

• 1D: 1.23%
• 1M: 5.71%
• YTD: 15.94%
• 6M: 14.93%
• 1Y: 28.70%
• 3Y*: 15.65%
• 5Y*: 4.77%
• 10Y*: 13.63%

FMDGX

• 1D: -0.22%
• 1M: 5.21%
• YTD: 4.88%
• 6M: 3.96%
• 1Y: 6.81%
• 3Y*: 16.42%
• 5Y*: 7.23%
• 10Y*: —

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

FISGX vs. FMDGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
FISGX Nuveen Mid Cap Growth Opportunities Fund	15.94%	7.83%	13.65%	20.26%	-30.11%	5.01%	46.58%	27.76%
FMDGX Fidelity Mid Cap Growth Index Fund	4.88%	8.60%	22.03%	25.79%	-26.67%	12.67%	34.84%	4.63%

Correlation

The correlation between FISGX and FMDGX is 0.88, 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	0.88
Correlation (3Y) Calculated over the trailing 3-year period	0.93
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (All Time) Calculated using the full available price history since Jul 18, 2019	0.96

The correlation between FISGX and FMDGX has been stable across timeframes, ranging from 0.88 to 0.96 - a consistent structural relationship.

Return for Risk

FISGX vs. FMDGX — Risk / Return Rank

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

FISGX

FISGX Risk / Return Rank: 36
FISGX Sharpe Ratio Rank: 30
FISGX Sortino Ratio Rank: 30
FISGX Omega Ratio Rank: 26
FISGX Calmar Ratio Rank: 48
FISGX Martin Ratio Rank: 48

FMDGX

FMDGX Risk / Return Rank: 6
FMDGX Sharpe Ratio Rank: 6
FMDGX Sortino Ratio Rank: 6
FMDGX Omega Ratio Rank: 6
FMDGX Calmar Ratio Rank: 6
FMDGX Martin Ratio Rank: 6

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.

FISGX vs. FMDGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Nuveen Mid Cap Growth Opportunities Fund (FISGX) and Fidelity Mid Cap Growth Index Fund (FMDGX). 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.

	FISGX	FMDGX	Difference
Sharpe ratio Return per unit of total volatility	1.59	0.49	+1.10
Sortino ratio Return per unit of downside risk	2.27	0.80	+1.47
Omega ratio Gain probability vs. loss probability	1.27	1.09	+0.18
Calmar ratio Return relative to maximum drawdown	2.63	0.54	+2.09
Martin ratio Return relative to average drawdown	9.96	1.58	+8.38
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FISGX vs. FMDGX - Sharpe Ratio Comparison

The current FISGX Sharpe Ratio is 1.59, which is higher than the FMDGX Sharpe Ratio of 0.49. The chart below compares the historical Sharpe Ratios of FISGX and FMDGX, 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

	FISGX	FMDGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.59	0.49	+1.10
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.20	0.32	-0.12
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.57	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.45	+0.06

Drawdowns

FISGX vs. FMDGX - Drawdown Comparison

The maximum FISGX drawdown since its inception was -57.51%, which is greater than FMDGX's maximum drawdown of -38.59%. Use the drawdown chart below to compare losses from any high point for FISGX and FMDGX.

Drawdown Indicators

	FISGX	FMDGX	Difference
Max Drawdown Largest peak-to-trough decline	-57.51%	-38.59%	-18.92%
Max Drawdown (1Y) Largest decline over 1 year	-11.60%	-14.75%	+3.15%
Max Drawdown (3Y) Largest decline over 3 years	-28.16%	-25.30%	-2.86%
Max Drawdown (5Y) Largest decline over 5 years	-43.30%	-38.59%	-4.71%
Max Drawdown (10Y) Largest decline over 10 years	-43.30%	—	—
Current Drawdown Current decline from peak	0.00%	-1.09%	+1.09%
Average Drawdown Average peak-to-trough decline	-9.86%	-11.21%	+1.35%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.05%	5.05%	-2.00%

Volatility

FISGX vs. FMDGX - Volatility Comparison

Nuveen Mid Cap Growth Opportunities Fund (FISGX) has a higher volatility of 6.47% compared to Fidelity Mid Cap Growth Index Fund (FMDGX) at 3.52%. This indicates that FISGX's price experiences larger fluctuations and is considered to be riskier than FMDGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FISGX	FMDGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.47%	3.52%	+2.95%
Volatility (6M) Calculated over the trailing 6-month period	15.04%	12.64%	+2.40%
Volatility (1Y) Calculated over the trailing 1-year period	19.27%	16.46%	+2.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.45%	22.37%	+1.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.00%	24.32%	-0.32%

FISGX vs. FMDGX - Expense Ratio Comparison

FISGX has a 0.92% expense ratio, which is higher than FMDGX's 0.05% expense ratio.

Dividends

FISGX vs. FMDGX - Dividend Comparison

FISGX's dividend yield for the trailing twelve months is around 7.20%, more than FMDGX's 1.77% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FISGX Nuveen Mid Cap Growth Opportunities Fund	7.20%	8.35%	0.00%	0.00%	0.00%	23.94%	9.97%	38.61%	19.12%	17.17%	4.01%	7.82%
FMDGX Fidelity Mid Cap Growth Index Fund	1.77%	1.85%	0.47%	0.63%	0.81%	6.43%	0.36%	0.29%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FISGX and FMDGX in my portfolio?

FISGX and FMDGX have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FISGX or FMDGX?

FISGX has higher volatility (6.47%) compared to FMDGX (3.52%). In terms of maximum drawdown, FISGX dropped -57.51% vs FMDGX's -38.59%.

Which has better risk-adjusted returns?

FISGX currently has the higher Sharpe Ratio (1.59 vs 0.49), 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.