MGXIX vs. FGRTX

Last updated Jun 24, 2026

MGXIX (MainStay Equity Allocation Fund) and FGRTX (Fidelity Mega Cap Stock Fund) are both mutual funds - MGXIX is a Diversified Portfolio fund managed by New York Life, while FGRTX is a Large Cap Blend Equities fund actively managed by Fidelity. Over the past 10 years, MGXIX returned 10.62%/yr vs 16.84%/yr for FGRTX. Their correlation of 0.94 suggests significant overlap in exposure. MGXIX charges 0.12%/yr vs 0.58%/yr for FGRTX.

Performance

MGXIX vs. FGRTX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MainStay Equity Allocation Fund (MGXIX) 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, MGXIX achieves a 12.16% return, which is significantly higher than FGRTX's 9.28% return. Over the past 10 years, MGXIX has underperformed FGRTX with an annualized return of 10.62%, while FGRTX has yielded a comparatively higher 16.84% annualized return.

MGXIX

• 1D: -0.10%
• 1M: 2.07%
• YTD: 12.16%
• 6M: 11.18%
• 1Y: 24.85%
• 3Y*: 16.40%
• 5Y*: 8.30%
• 10Y*: 10.62%

FGRTX

• 1D: -0.76%
• 1M: -0.12%
• YTD: 9.28%
• 6M: 8.76%
• 1Y: 28.06%
• 3Y*: 25.10%
• 5Y*: 16.41%
• 10Y*: 16.84%

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

MGXIX vs. FGRTX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MGXIX MainStay Equity Allocation Fund	12.16%	14.31%	11.47%	17.67%	-17.08%	20.76%	15.71%	24.59%	-13.47%	18.74%
FGRTX Fidelity Mega Cap Stock Fund	9.28%	26.92%	25.98%	26.51%	-8.98%	26.29%	12.96%	31.07%	-7.44%	16.98%

Correlation

The correlation between MGXIX and FGRTX is 0.87, 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	0.87
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.92
Correlation (10Y) Calculated over the trailing 10-year period	0.91
Correlation (All Time) Calculated using the full available price history since Apr 6, 2005	0.94

The correlation between MGXIX and FGRTX has been stable across timeframes, ranging from 0.87 to 0.94 - a consistent structural relationship.

Return for Risk

MGXIX vs. FGRTX — Risk / Return Rank

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

MGXIX

MGXIX Risk / Return Rank: 58
MGXIX Sharpe Ratio Rank: 58
MGXIX Sortino Ratio Rank: 54
MGXIX Omega Ratio Rank: 55
MGXIX Calmar Ratio Rank: 58
MGXIX Martin Ratio Rank: 67

FGRTX

FGRTX Risk / Return Rank: 75
FGRTX Sharpe Ratio Rank: 76
FGRTX Sortino Ratio Rank: 71
FGRTX Omega Ratio Rank: 68
FGRTX Calmar Ratio Rank: 76
FGRTX Martin Ratio Rank: 83

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.

MGXIX vs. FGRTX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MainStay Equity Allocation Fund (MGXIX) 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.

	MGXIX	FGRTX	Difference
Sharpe ratio: Return per unit of total volatility	2.07	2.33	-0.25
Sortino ratio: Return per unit of downside risk	2.84	3.19	-0.35
Omega ratio: Gain probability vs. loss probability	1.38	1.42	-0.04
Calmar ratio: Return relative to maximum drawdown	2.80	3.24	-0.45
Martin ratio: Return relative to average drawdown	12.27	14.42	-2.14

MGXIX vs. FGRTX - Sharpe Ratio Comparison

The current MGXIX Sharpe Ratio is 2.07, which is comparable to the FGRTX Sharpe Ratio of 2.33. The chart below compares the historical Sharpe Ratios of MGXIX 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

MGXIX vs. FGRTX - Drawdown Comparison

The maximum MGXIX drawdown since its inception was -53.45%, roughly equal to the maximum FGRTX drawdown of -56.17%. Use the drawdown chart below to compare losses from any high point for MGXIX and FGRTX.

Drawdown Indicators

	MGXIX	FGRTX	Difference
Max Drawdown Largest peak-to-trough decline	-53.45%	-56.17%	+2.72%
Max Drawdown (1Y) Largest decline over 1 year	-9.33%	-8.99%	-0.34%
Max Drawdown (3Y) Largest decline over 3 years	-18.23%	-18.51%	+0.28%
Max Drawdown (5Y) Largest decline over 5 years	-25.63%	-23.35%	-2.28%
Max Drawdown (10Y) Largest decline over 10 years	-34.63%	-35.18%	+0.55%
Current Drawdown Current decline from peak	-0.30%	-1.41%	+1.11%
Average Drawdown Average peak-to-trough decline	-8.40%	-8.71%	+0.31%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.12%	2.02%	+0.10%

Volatility

MGXIX vs. FGRTX - Volatility Comparison

MainStay Equity Allocation Fund (MGXIX) has a higher volatility of 4.64% compared to Fidelity Mega Cap Stock Fund (FGRTX) at 4.34%. This indicates that MGXIX'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

	MGXIX	FGRTX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.64%	4.34%	+0.30%
Volatility (6M) Calculated over the trailing 6-month period	10.27%	9.69%	+0.58%
Volatility (1Y) Calculated over the trailing 1-year period	12.62%	12.56%	+0.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.80%	16.76%	-0.96%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.15%	18.15%	-1.00%

MGXIX vs. FGRTX - Expense Ratio Comparison

MGXIX has a 0.12% expense ratio, which is lower than FGRTX's 0.58% expense ratio.

Dividends

MGXIX vs. FGRTX - Dividend Comparison

MGXIX's dividend yield for the trailing twelve months is around 5.45%, more than FGRTX's 3.56% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FGRTX Fidelity Mega Cap Stock Fund	3.56%	3.89%	2.68%	2.06%	4.38%	4.79%	7.96%	12.98%	21.72%	15.57%	1.97%	4.16%
MGXIX MainStay Equity Allocation Fund	5.45%	6.12%	6.68%	0.00%	11.02%	12.58%	4.97%	5.52%	12.44%	3.42%	2.90%	5.94%

Frequently Asked Questions

Can I hold both MGXIX and FGRTX in my portfolio?

MGXIX and FGRTX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MGXIX or FGRTX?

MGXIX has higher volatility (4.64%) compared to FGRTX (4.34%). In terms of maximum drawdown, MGXIX dropped -53.45% vs FGRTX's -56.17%.

Which has better risk-adjusted returns?

FGRTX currently has the higher Sharpe Ratio (2.33 vs 2.07), 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.