FGLGX vs. FGRTX
FGLGX (Fidelity Series Large Cap Stock Fund) and FGRTX (Fidelity Mega Cap Stock Fund) are both Large Cap Blend Equities funds from Fidelity. Over the past 10 years, FGLGX returned 16.67%/yr vs 16.61%/yr for FGRTX. With a 0.99 correlation, they move nearly in lockstep. FGLGX charges 0.00%/yr vs 0.58%/yr for FGRTX.
Performance
FGLGX vs. FGRTX - Performance Comparison
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Returns By Period
The year-to-date returns for both stocks are quite close, with FGLGX having a 10.45% return and FGRTX slightly lower at 10.11%. Both investments have delivered pretty close results over the past 10 years, with FGLGX having a 16.67% annualized return and FGRTX not far behind at 16.61%.
FGLGX
- 1D
- 0.99%
- 1M
- 1.38%
- YTD
- 10.45%
- 6M
- 10.41%
- 1Y
- 31.68%
- 3Y*
- 25.81%
- 5Y*
- 17.87%
- 10Y*
- 16.67%
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%
FGLGX vs. FGRTX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FGLGX Fidelity Series Large Cap Stock Fund | 10.45% | 28.57% | 27.45% | 24.80% | -7.23% | 26.53% | 10.01% | 32.37% | -8.95% | 16.64% |
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 FGLGX and FGRTX is 0.99 - 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 | 0.99 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.99 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.99 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.99 |
Correlation (All Time) Calculated using the full available price history since Dec 11, 2012 | 0.99 |
The correlation between FGLGX and FGRTX has been stable across timeframes, ranging from 0.99 to 0.99 - a consistent structural relationship.
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Return for Risk
FGLGX vs. FGRTX — Risk / Return Rank
FGLGX
FGRTX
FGLGX vs. FGRTX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Series Large Cap Stock Fund (FGLGX) 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.
| FGLGX | FGRTX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.09 | ||
| Sortino ratioReturn per unit of downside risk | +0.13 | ||
| Omega ratioGain probability vs. loss probability | 1.45 | 1.43 | +0.01 |
| Calmar ratioReturn relative to maximum drawdown | 3.36 | 3.33 | +0.04 |
| Martin ratioReturn relative to average drawdown | 15.20 | 14.80 | +0.40 |
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Drawdowns
FGLGX vs. FGRTX - Drawdown Comparison
The maximum FGLGX drawdown since its inception was -36.42%, smaller than the maximum FGRTX drawdown of -56.17%. Use the drawdown chart below to compare losses from any high point for FGLGX and FGRTX.
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Drawdown Indicators
| FGLGX | FGRTX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -36.42% | -56.17% | +19.75% |
Max Drawdown (1Y)Largest decline over 1 year | -9.43% | -8.99% | -0.44% |
Max Drawdown (3Y)Largest decline over 3 years | -18.75% | -18.51% | -0.24% |
Max Drawdown (5Y)Largest decline over 5 years | -21.21% | -23.35% | +2.14% |
Max Drawdown (10Y)Largest decline over 10 years | -36.42% | -35.18% | -1.24% |
Current DrawdownCurrent decline from peak | -0.24% | -0.66% | +0.42% |
Average DrawdownAverage peak-to-trough decline | -3.77% | -8.71% | +4.94% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.08% | 2.02% | +0.06% |
Volatility
FGLGX vs. FGRTX - Volatility Comparison
Fidelity Series Large Cap Stock Fund (FGLGX) and Fidelity Mega Cap Stock Fund (FGRTX) have volatilities of 4.38% and 4.35%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FGLGX | FGRTX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.38% | 4.35% | +0.03% |
Volatility (6M)Calculated over the trailing 6-month period | 9.99% | 9.75% | +0.24% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.78% | 12.50% | +0.28% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.95% | 16.77% | +0.18% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.40% | 18.15% | +0.25% |
FGLGX vs. FGRTX - Expense Ratio Comparison
FGLGX has a 0.00% expense ratio, which is lower than FGRTX's 0.58% expense ratio.
Dividends
FGLGX vs. FGRTX - Dividend Comparison
FGLGX's dividend yield for the trailing twelve months is around 8.91%, more than FGRTX's 3.53% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FGLGX Fidelity Series Large Cap Stock Fund | 8.91% | 9.84% | 7.99% | 5.29% | 6.55% | 9.22% | 5.36% | 7.25% | 12.29% | 4.61% | 1.69% | 5.94% |
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% |
Frequently Asked Questions
With a correlation of 0.99, FGLGX 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.
FGLGX has higher volatility (4.38%) compared to FGRTX (4.35%). In terms of maximum drawdown, FGLGX dropped -36.42% vs FGRTX's -56.17%.
FGLGX currently has the higher Sharpe Ratio (2.48 vs 2.39), 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.
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