MGC vs. FGRTX

Last updated Jun 23, 2026

MGC (Vanguard Mega Cap ETF) and FGRTX (Fidelity Mega Cap Stock Fund) are both Large Cap Blend Equities funds. MGC is passively managed, while FGRTX is actively managed. Over the past 10 years, MGC returned 16.51%/yr vs 16.61%/yr for FGRTX. Their correlation of 0.95 suggests significant overlap in exposure. MGC charges 0.05%/yr vs 0.58%/yr for FGRTX.

Performance

MGC vs. FGRTX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Mega Cap ETF (MGC) and Fidelity Mega Cap Stock Fund (FGRTX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MGC achieves a 9.05% return, which is significantly lower than FGRTX's 10.11% return. Both investments have delivered pretty close results over the past 10 years, with MGC having a 16.51% annualized return and FGRTX not far ahead at 16.61%.

MGC

• 1D: -0.63%
• 1M: -0.40%
• YTD: 9.05%
• 6M: 8.78%
• 1Y: 27.57%
• 3Y*: 22.54%
• 5Y*: 14.13%
• 10Y*: 16.51%

FGRTX

• 1D: 1.00%
• 1M: 0.64%
• YTD: 10.11%
• 6M: 10.32%
• 1Y: 30.02%
• 3Y*: 24.66%
• 5Y*: 17.05%
• 10Y*: 16.61%

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

MGC vs. FGRTX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MGC Vanguard Mega Cap ETF	9.05%	19.31%	27.16%	29.77%	-19.95%	27.58%	21.57%	31.14%	-3.45%	22.61%
FGRTX Fidelity Mega Cap Stock Fund	10.11%	26.92%	25.98%	26.51%	-8.98%	26.29%	12.96%	31.07%	-7.44%	16.98%

Correlation

The correlation between MGC and FGRTX is 0.94, 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	0.94
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (10Y) Calculated over the trailing 10-year period	0.92
Correlation (All Time) Calculated using the full available price history since Dec 27, 2007	0.95

The correlation between MGC and FGRTX has been stable across timeframes, ranging from 0.92 to 0.95 - a consistent structural relationship.

Return for Risk

MGC vs. FGRTX — Risk / Return Rank

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

MGC

MGC Risk / Return Rank: 65
MGC Sharpe Ratio Rank: 68
MGC Sortino Ratio Rank: 65
MGC Omega Ratio Rank: 66
MGC Calmar Ratio Rank: 58
MGC Martin Ratio Rank: 68

FGRTX

FGRTX Risk / Return Rank: 78
FGRTX Sharpe Ratio Rank: 79
FGRTX Sortino Ratio Rank: 74
FGRTX Omega Ratio Rank: 72
FGRTX Calmar Ratio Rank: 78
FGRTX 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.

MGC vs. FGRTX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Mega Cap ETF (MGC) and Fidelity Mega Cap Stock Fund (FGRTX). 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.

	MGC	FGRTX	Difference
Sharpe ratio: Return per unit of total volatility	2.13	2.39	-0.26
Sortino ratio: Return per unit of downside risk	2.88	3.27	-0.40
Omega ratio: Gain probability vs. loss probability	1.38	1.43	-0.05
Calmar ratio: Return relative to maximum drawdown	2.81	3.33	-0.52
Martin ratio: Return relative to average drawdown	12.20	14.80	-2.60

MGC vs. FGRTX - Sharpe Ratio Comparison

The current MGC Sharpe Ratio is 2.13, which is comparable to the FGRTX Sharpe Ratio of 2.39. The chart below compares the historical Sharpe Ratios of MGC and FGRTX, 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

MGC vs. FGRTX - Drawdown Comparison

The maximum MGC drawdown since its inception was -52.26%, smaller than the maximum FGRTX drawdown of -56.17%. Use the drawdown chart below to compare losses from any high point for MGC and FGRTX.

Drawdown Indicators

	MGC	FGRTX	Difference
Max Drawdown Largest peak-to-trough decline	-52.26%	-56.17%	+3.91%
Max Drawdown (1Y) Largest decline over 1 year	-9.85%	-8.99%	-0.86%
Max Drawdown (3Y) Largest decline over 3 years	-19.28%	-18.51%	-0.77%
Max Drawdown (5Y) Largest decline over 5 years	-25.74%	-23.35%	-2.39%
Max Drawdown (10Y) Largest decline over 10 years	-33.07%	-35.18%	+2.11%
Current Drawdown Current decline from peak	-2.36%	-0.66%	-1.70%
Average Drawdown Average peak-to-trough decline	-7.17%	-8.71%	+1.54%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.27%	2.02%	+0.25%

Volatility

MGC vs. FGRTX - Volatility Comparison

Vanguard Mega Cap ETF (MGC) has a higher volatility of 5.00% compared to Fidelity Mega Cap Stock Fund (FGRTX) at 4.35%. This indicates that MGC's price experiences larger fluctuations and is considered to be riskier than FGRTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MGC	FGRTX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.00%	4.35%	+0.65%
Volatility (6M) Calculated over the trailing 6-month period	10.23%	9.75%	+0.48%
Volatility (1Y) Calculated over the trailing 1-year period	13.01%	12.50%	+0.51%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.37%	16.77%	+0.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.27%	18.15%	+0.12%

MGC vs. FGRTX - Expense Ratio Comparison

MGC has a 0.05% expense ratio, which is lower than FGRTX's 0.58% expense ratio.

Dividends

MGC vs. FGRTX - Dividend Comparison

MGC's dividend yield for the trailing twelve months is around 0.88%, less than FGRTX's 3.53% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FGRTX Fidelity Mega Cap Stock Fund	3.53%	3.89%	2.68%	2.06%	4.38%	4.79%	7.96%	12.98%	21.72%	15.57%	1.97%	4.16%
MGC Vanguard Mega Cap ETF	0.88%	0.93%	1.15%	1.35%	1.65%	1.17%	1.45%	1.81%	2.10%	1.83%	2.14%	2.11%

Frequently Asked Questions

Can I hold both MGC and FGRTX in my portfolio?

With a correlation of 0.94, MGC and FGRTX 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, MGC or FGRTX?

MGC has higher volatility (5.00%) compared to FGRTX (4.35%). In terms of maximum drawdown, MGC dropped -52.26% vs FGRTX's -56.17%.

Which has better risk-adjusted returns?

FGRTX currently has the higher Sharpe Ratio (2.39 vs 2.13), 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.