FIIMX vs. ATGAX

Last updated Jun 5, 2026

FIIMX (Fidelity Advisor Mid Cap II Fund Class I) and ATGAX (Aquila Opportunity Growth Fund) are both Mid Cap Blend Equities funds. With a 1.00 correlation, they move nearly in lockstep. FIIMX charges 0.73%/yr vs 1.50%/yr for ATGAX.

Performance

FIIMX vs. ATGAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor Mid Cap II Fund Class I (FIIMX) and Aquila Opportunity Growth Fund (ATGAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

FIIMX

• 1D: -0.23%
• 1M: 2.27%
• YTD: 21.25%
• 6M: 21.32%
• 1Y: 38.56%
• 3Y*: 19.43%
• 5Y*: 10.07%
• 10Y*: 11.79%

ATGAX

• 1D: -0.36%
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FIIMX vs. ATGAX - Yearly Performance Comparison

	2026 (YTD)
FIIMX Fidelity Advisor Mid Cap II Fund Class I	1.26%
ATGAX Aquila Opportunity Growth Fund	1.66%

Correlation

The correlation between FIIMX and ATGAX is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 29, 2026	1.00

Return for Risk

FIIMX vs. ATGAX — Risk / Return Rank

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

FIIMX

FIIMX Risk / Return Rank: 68
FIIMX Sharpe Ratio Rank: 60
FIIMX Sortino Ratio Rank: 55
FIIMX Omega Ratio Rank: 54
FIIMX Calmar Ratio Rank: 84
FIIMX Martin Ratio Rank: 85

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.

FIIMX vs. ATGAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Mid Cap II Fund Class I (FIIMX) and Aquila Opportunity Growth Fund (ATGAX). 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.

	FIIMX	ATGAX	Difference
Sharpe ratio: Return per unit of total volatility	2.24	—	—
Sortino ratio: Return per unit of downside risk	3.07	—	—
Omega ratio: Gain probability vs. loss probability	1.39	—	—
Calmar ratio: Return relative to maximum drawdown	3.90	—	—
Martin ratio: Return relative to average drawdown	15.69	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	FIIMX	ATGAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.24	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.50	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.56	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.53	18.80	-18.27

Drawdowns

FIIMX vs. ATGAX - Drawdown Comparison

The maximum FIIMX drawdown since its inception was -53.22%, which is greater than ATGAX's maximum drawdown of -0.36%. Use the drawdown chart below to compare losses from any high point for FIIMX and ATGAX.

Drawdown Indicators

	FIIMX	ATGAX	Difference
Max Drawdown Largest peak-to-trough decline	-53.22%	-0.36%	-52.86%
Max Drawdown (1Y) Largest decline over 1 year	-9.83%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-28.06%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-28.06%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-42.29%	—	—
Current Drawdown Current decline from peak	-0.23%	-0.36%	+0.13%
Average Drawdown Average peak-to-trough decline	-8.06%	-0.09%	-7.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.44%	—	—

Volatility

Volatility by Period

	FIIMX	ATGAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.99%	—	—
Volatility (6M) Calculated over the trailing 6-month period	13.74%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	17.14%	11.18%	+5.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.33%	11.18%	+9.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.99%	11.18%	+9.81%

FIIMX vs. ATGAX - Expense Ratio Comparison

FIIMX has a 0.73% expense ratio, which is lower than ATGAX's 1.50% expense ratio.

Dividends

FIIMX vs. ATGAX - Dividend Comparison

FIIMX's dividend yield for the trailing twelve months is around 5.67%, while ATGAX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ATGAX Aquila Opportunity Growth Fund	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
FIIMX Fidelity Advisor Mid Cap II Fund Class I	5.67%	6.06%	6.79%	2.71%	5.70%	18.41%	1.29%	3.30%	10.56%	7.67%	4.84%	4.76%

Frequently Asked Questions

Can I hold both FIIMX and ATGAX in my portfolio?

With a correlation of 1.00, FIIMX and ATGAX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.