FNIAX vs. AGTHX

Last updated Jun 4, 2026

FNIAX (Fidelity Advisor New Insights Fund Class A) and AGTHX (American Funds The Growth Fund of America Class A) are both Large Cap Growth Equities funds. Over the past 10 years, FNIAX returned 16.25%/yr vs 15.97%/yr for AGTHX. Their correlation of 0.94 suggests significant overlap in exposure. FNIAX charges 0.93%/yr vs 0.59%/yr for AGTHX.

Performance

FNIAX vs. AGTHX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor New Insights Fund Class A (FNIAX) and American Funds The Growth Fund of America Class A (AGTHX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FNIAX achieves a 9.43% return, which is significantly lower than AGTHX's 10.09% return. Both investments have delivered pretty close results over the past 10 years, with FNIAX having a 16.25% annualized return and AGTHX not far behind at 15.97%.

FNIAX

• 1D: 0.04%
• 1M: 3.51%
• YTD: 9.43%
• 6M: 12.58%
• 1Y: 27.79%
• 3Y*: 27.04%
• 5Y*: 15.23%
• 10Y*: 16.25%

AGTHX

• 1D: -0.33%
• 1M: 6.81%
• YTD: 10.09%
• 6M: 9.70%
• 1Y: 26.21%
• 3Y*: 25.16%
• 5Y*: 12.51%
• 10Y*: 15.97%

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

FNIAX vs. AGTHX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FNIAX Fidelity Advisor New Insights Fund Class A	9.43%	21.17%	34.94%	35.97%	-26.57%	24.40%	23.62%	29.17%	-4.67%	28.07%
AGTHX American Funds The Growth Fund of America Class A	10.09%	19.73%	28.02%	37.22%	-30.75%	19.32%	37.83%	28.16%	-3.15%	26.14%

Correlation

The correlation between FNIAX and AGTHX is 0.91, 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	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.93
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since Jan 9, 2003	0.94

The correlation between FNIAX and AGTHX has been stable across timeframes, ranging from 0.91 to 0.96 - a consistent structural relationship.

Return for Risk

FNIAX vs. AGTHX — Risk / Return Rank

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

FNIAX

FNIAX Risk / Return Rank: 49
FNIAX Sharpe Ratio Rank: 46
FNIAX Sortino Ratio Rank: 43
FNIAX Omega Ratio Rank: 44
FNIAX Calmar Ratio Rank: 51
FNIAX Martin Ratio Rank: 61

AGTHX

AGTHX Risk / Return Rank: 34
AGTHX Sharpe Ratio Rank: 38
AGTHX Sortino Ratio Rank: 34
AGTHX Omega Ratio Rank: 37
AGTHX Calmar Ratio Rank: 27
AGTHX Martin Ratio Rank: 33

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.

FNIAX vs. AGTHX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor New Insights Fund Class A (FNIAX) and American Funds The Growth Fund of America Class A (AGTHX). 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.

	FNIAX	AGTHX	Difference
Sharpe ratio: Return per unit of total volatility	2.00	1.77	+0.23
Sortino ratio: Return per unit of downside risk	2.75	2.43	+0.32
Omega ratio: Gain probability vs. loss probability	1.36	1.32	+0.04
Calmar ratio: Return relative to maximum drawdown	2.73	1.95	+0.78
Martin ratio: Return relative to average drawdown	12.10	7.61	+4.50
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FNIAX vs. AGTHX - Sharpe Ratio Comparison

The current FNIAX Sharpe Ratio is 2.00, which is comparable to the AGTHX Sharpe Ratio of 1.77. The chart below compares the historical Sharpe Ratios of FNIAX and AGTHX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FNIAX	AGTHX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.00	1.77	+0.23
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.80	0.62	+0.18
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.85	0.81	+0.03
Sharpe Ratio (All Time) Calculated using the full available price history	0.64	0.71	-0.07

Drawdowns

FNIAX vs. AGTHX - Drawdown Comparison

The maximum FNIAX drawdown since its inception was -49.69%, roughly equal to the maximum AGTHX drawdown of -51.91%. Use the drawdown chart below to compare losses from any high point for FNIAX and AGTHX.

Drawdown Indicators

	FNIAX	AGTHX	Difference
Max Drawdown Largest peak-to-trough decline	-49.69%	-51.91%	+2.22%
Max Drawdown (1Y) Largest decline over 1 year	-10.41%	-13.76%	+3.35%
Max Drawdown (3Y) Largest decline over 3 years	-20.61%	-21.57%	+0.96%
Max Drawdown (5Y) Largest decline over 5 years	-31.98%	-36.38%	+4.40%
Max Drawdown (10Y) Largest decline over 10 years	-31.98%	-36.38%	+4.40%
Current Drawdown Current decline from peak	-0.38%	-0.33%	-0.05%
Average Drawdown Average peak-to-trough decline	-7.23%	-9.20%	+1.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.34%	3.52%	-1.18%

Volatility

FNIAX vs. AGTHX - Volatility Comparison

Fidelity Advisor New Insights Fund Class A (FNIAX) and American Funds The Growth Fund of America Class A (AGTHX) have volatilities of 3.53% and 3.67%, 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.

Volatility by Period

	FNIAX	AGTHX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.53%	3.67%	-0.14%
Volatility (6M) Calculated over the trailing 6-month period	10.80%	11.65%	-0.85%
Volatility (1Y) Calculated over the trailing 1-year period	14.19%	15.15%	-0.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.05%	20.25%	-1.20%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.29%	19.69%	-0.40%

FNIAX vs. AGTHX - Expense Ratio Comparison

FNIAX has a 0.93% expense ratio, which is higher than AGTHX's 0.59% expense ratio.

Dividends

FNIAX vs. AGTHX - Dividend Comparison

FNIAX's dividend yield for the trailing twelve months is around 8.54%, less than AGTHX's 9.71% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AGTHX American Funds The Growth Fund of America Class A	9.71%	10.69%	8.99%	7.40%	4.05%	8.18%	4.30%	7.15%	11.99%	7.03%	6.61%	8.87%
FNIAX Fidelity Advisor New Insights Fund Class A	8.54%	8.96%	5.85%	6.18%	17.12%	12.66%	8.14%	6.48%	13.78%	7.61%	4.99%	4.40%

Frequently Asked Questions

Can I hold both FNIAX and AGTHX in my portfolio?

With a correlation of 0.91, FNIAX and AGTHX 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, FNIAX or AGTHX?

AGTHX has higher volatility (3.67%) compared to FNIAX (3.53%). In terms of maximum drawdown, FNIAX dropped -49.69% vs AGTHX's -51.91%.

Which has better risk-adjusted returns?

FNIAX currently has the higher Sharpe Ratio (2.00 vs 1.77), 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.