RMDAX vs. FMDGX

Last updated Jun 23, 2026

RMDAX (Virtus Silvant Mid-Cap Growth Fund Class A) and FMDGX (Fidelity Mid Cap Growth Index Fund) are both Mid Cap Growth Equities funds. RMDAX is actively managed, while FMDGX is passively managed. Over the past 5 years, RMDAX returned 7.63%/yr vs 6.11%/yr for FMDGX. With a 0.96 correlation, they move nearly in lockstep. RMDAX charges 0.99%/yr vs 0.05%/yr for FMDGX.

Performance

RMDAX vs. FMDGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Virtus Silvant Mid-Cap Growth Fund Class A (RMDAX) 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, RMDAX achieves a 14.38% return, which is significantly higher than FMDGX's 3.93% return.

RMDAX

• 1D: 1.42%
• 1M: 4.16%
• YTD: 14.38%
• 6M: 11.58%
• 1Y: 21.25%
• 3Y*: 20.96%
• 5Y*: 7.63%
• 10Y*: 14.70%

FMDGX

• 1D: 1.05%
• 1M: 1.93%
• YTD: 3.93%
• 6M: 1.36%
• 1Y: 6.22%
• 3Y*: 14.87%
• 5Y*: 6.11%
• 10Y*: —

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

RMDAX vs. FMDGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
RMDAX Virtus Silvant Mid-Cap Growth Fund Class A	14.38%	17.91%	20.11%	24.34%	-32.59%	14.34%	54.94%	4.81%
FMDGX Fidelity Mid Cap Growth Index Fund	3.93%	8.60%	22.03%	25.79%	-26.67%	12.67%	34.84%	4.63%

Correlation

The correlation between RMDAX and FMDGX is 0.95 - 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 (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (All Time) Calculated using the full available price history since Jul 17, 2019	0.96

The correlation between RMDAX and FMDGX has been stable across timeframes, ranging from 0.95 to 0.96 - a consistent structural relationship.

Return for Risk

RMDAX vs. FMDGX — Risk / Return Rank

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

RMDAX

RMDAX Risk / Return Rank: 18
RMDAX Sharpe Ratio Rank: 16
RMDAX Sortino Ratio Rank: 16
RMDAX Omega Ratio Rank: 15
RMDAX Calmar Ratio Rank: 20
RMDAX Martin Ratio Rank: 24

FMDGX

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

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.

RMDAX vs. FMDGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Virtus Silvant Mid-Cap Growth Fund Class A (RMDAX) 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	RMDAX	FMDGX	Difference
Sharpe ratio: Return per unit of total volatility	1.06	0.35	+0.71
Sortino ratio: Return per unit of downside risk	1.56	0.61	+0.95
Omega ratio: Gain probability vs. loss probability	1.19	1.07	+0.12
Calmar ratio: Return relative to maximum drawdown	1.53	0.40	+1.13
Martin ratio: Return relative to average drawdown	5.27	1.16	+4.11

RMDAX vs. FMDGX - Sharpe Ratio Comparison

The current RMDAX Sharpe Ratio is 1.06, which is higher than the FMDGX Sharpe Ratio of 0.35. The chart below compares the historical Sharpe Ratios of RMDAX 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.

Drawdowns

RMDAX vs. FMDGX - Drawdown Comparison

The maximum RMDAX drawdown since its inception was -56.31%, which is greater than FMDGX's maximum drawdown of -38.59%. Use the drawdown chart below to compare losses from any high point for RMDAX and FMDGX.

Drawdown Indicators

	RMDAX	FMDGX	Difference
Max Drawdown Largest peak-to-trough decline	-56.31%	-38.59%	-17.72%
Max Drawdown (1Y) Largest decline over 1 year	-13.81%	-14.75%	+0.94%
Max Drawdown (3Y) Largest decline over 3 years	-27.02%	-25.30%	-1.72%
Max Drawdown (5Y) Largest decline over 5 years	-43.72%	-38.59%	-5.13%
Max Drawdown (10Y) Largest decline over 10 years	-43.72%	—	—
Current Drawdown Current decline from peak	-0.79%	-1.97%	+1.18%
Average Drawdown Average peak-to-trough decline	-9.98%	-11.14%	+1.16%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.99%	5.09%	-1.10%

Volatility

RMDAX vs. FMDGX - Volatility Comparison

Virtus Silvant Mid-Cap Growth Fund Class A (RMDAX) has a higher volatility of 7.28% compared to Fidelity Mid Cap Growth Index Fund (FMDGX) at 5.90%. This indicates that RMDAX'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

	RMDAX	FMDGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.28%	5.90%	+1.38%
Volatility (6M) Calculated over the trailing 6-month period	16.04%	13.43%	+2.61%
Volatility (1Y) Calculated over the trailing 1-year period	19.92%	17.04%	+2.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.25%	22.45%	+1.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.70%	24.31%	-0.61%

RMDAX vs. FMDGX - Expense Ratio Comparison

RMDAX has a 0.99% expense ratio, which is higher than FMDGX's 0.05% expense ratio.

Dividends

RMDAX vs. FMDGX - Dividend Comparison

RMDAX's dividend yield for the trailing twelve months is around 19.70%, more than FMDGX's 1.78% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FMDGX Fidelity Mid Cap Growth Index Fund	1.78%	1.85%	0.47%	0.63%	0.81%	6.43%	0.36%	0.29%	0.00%	0.00%	0.00%	0.00%
RMDAX Virtus Silvant Mid-Cap Growth Fund Class A	19.70%	22.53%	0.00%	0.00%	0.00%	35.29%	10.87%	4.87%	16.75%	9.99%	8.25%	6.27%

Frequently Asked Questions

Can I hold both RMDAX and FMDGX in my portfolio?

With a correlation of 0.95, RMDAX and FMDGX 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.

Which is riskier, RMDAX or FMDGX?

RMDAX has higher volatility (7.28%) compared to FMDGX (5.90%). In terms of maximum drawdown, RMDAX dropped -56.31% vs FMDGX's -38.59%.

Which has better risk-adjusted returns?

RMDAX currently has the higher Sharpe Ratio (1.06 vs 0.35), 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.