STFGX vs. AGTHX

Last updated Jun 23, 2026

STFGX (State Farm Growth Fund) and AGTHX (American Funds The Growth Fund of America Class A) are both mutual funds - STFGX is a Large Cap Blend Equities fund managed by State Farm, while AGTHX is a Large Cap Growth Equities fund actively managed by Capital Group. Over the past 10 years, STFGX returned 14.02%/yr vs 16.02%/yr for AGTHX. Their correlation of 0.86 suggests significant overlap in exposure. STFGX charges 0.12%/yr vs 0.59%/yr for AGTHX.

Performance

STFGX vs. AGTHX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Farm Growth Fund (STFGX) 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, STFGX achieves a 12.03% return, which is significantly higher than AGTHX's 9.30% return. Over the past 10 years, STFGX has underperformed AGTHX with an annualized return of 14.02%, while AGTHX has yielded a comparatively higher 16.02% annualized return.

STFGX

• 1D: 0.93%
• 1M: 0.71%
• YTD: 12.03%
• 6M: 11.74%
• 1Y: 32.55%
• 3Y*: 20.00%
• 5Y*: 13.94%
• 10Y*: 14.02%

AGTHX

• 1D: 1.78%
• 1M: 2.49%
• YTD: 9.30%
• 6M: 8.68%
• 1Y: 24.65%
• 3Y*: 23.64%
• 5Y*: 11.98%
• 10Y*: 16.02%

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

STFGX vs. AGTHX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
STFGX State Farm Growth Fund	12.03%	19.19%	20.85%	17.49%	-11.27%	25.90%	15.65%	28.02%	-5.35%	16.60%
AGTHX American Funds The Growth Fund of America Class A	9.30%	19.73%	28.02%	37.22%	-30.75%	19.32%	37.83%	28.16%	-3.15%	26.14%

Correlation

The correlation between STFGX and AGTHX is 0.84, 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	0.84
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (10Y) Calculated over the trailing 10-year period	0.84
Correlation (All Time) Calculated using the full available price history since Jan 2, 1990	0.86

The correlation between STFGX and AGTHX has been stable across timeframes, ranging from 0.84 to 0.87 - a consistent structural relationship.

Return for Risk

STFGX vs. AGTHX — Risk / Return Rank

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

STFGX

STFGX Risk / Return Rank: 88
STFGX Sharpe Ratio Rank: 91
STFGX Sortino Ratio Rank: 87
STFGX Omega Ratio Rank: 84
STFGX Calmar Ratio Rank: 85
STFGX Martin Ratio Rank: 91

AGTHX

AGTHX Risk / Return Rank: 30
AGTHX Sharpe Ratio Rank: 31
AGTHX Sortino Ratio Rank: 28
AGTHX Omega Ratio Rank: 31
AGTHX Calmar Ratio Rank: 26
AGTHX Martin Ratio Rank: 31

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.

STFGX vs. AGTHX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Farm Growth Fund (STFGX) 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.

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.

	STFGX	AGTHX	Difference
Sharpe ratio: Return per unit of total volatility	2.79	1.49	+1.29
Sortino ratio: Return per unit of downside risk	3.87	2.06	+1.80
Omega ratio: Gain probability vs. loss probability	1.52	1.27	+0.24
Calmar ratio: Return relative to maximum drawdown	3.84	1.77	+2.08
Martin ratio: Return relative to average drawdown	16.97	6.75	+10.22

STFGX vs. AGTHX - Sharpe Ratio Comparison

The current STFGX Sharpe Ratio is 2.79, which is higher than the AGTHX Sharpe Ratio of 1.49. The chart below compares the historical Sharpe Ratios of STFGX 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.

Drawdowns

STFGX vs. AGTHX - Drawdown Comparison

The maximum STFGX drawdown since its inception was -48.88%, smaller than the maximum AGTHX drawdown of -51.91%. Use the drawdown chart below to compare losses from any high point for STFGX and AGTHX.

Drawdown Indicators

	STFGX	AGTHX	Difference
Max Drawdown Largest peak-to-trough decline	-48.88%	-51.91%	+3.03%
Max Drawdown (1Y) Largest decline over 1 year	-8.51%	-13.76%	+5.25%
Max Drawdown (3Y) Largest decline over 3 years	-21.65%	-21.57%	-0.08%
Max Drawdown (5Y) Largest decline over 5 years	-21.65%	-36.38%	+14.73%
Max Drawdown (10Y) Largest decline over 10 years	-31.46%	-36.38%	+4.92%
Current Drawdown Current decline from peak	-0.65%	-1.05%	+0.40%
Average Drawdown Average peak-to-trough decline	-7.82%	-9.19%	+1.37%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.92%	3.59%	-1.67%

Volatility

STFGX vs. AGTHX - Volatility Comparison

The current volatility for State Farm Growth Fund (STFGX) is 3.85%, while American Funds The Growth Fund of America Class A (AGTHX) has a volatility of 6.90%. This indicates that STFGX experiences smaller price fluctuations and is considered to be less risky than AGTHX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	STFGX	AGTHX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.85%	6.90%	-3.05%
Volatility (6M) Calculated over the trailing 6-month period	9.42%	13.13%	-3.71%
Volatility (1Y) Calculated over the trailing 1-year period	11.73%	16.27%	-4.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.04%	20.43%	-4.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.80%	19.78%	-2.98%

STFGX vs. AGTHX - Expense Ratio Comparison

STFGX has a 0.12% expense ratio, which is lower than AGTHX's 0.59% expense ratio.

Dividends

STFGX vs. AGTHX - Dividend Comparison

STFGX's dividend yield for the trailing twelve months is around 5.77%, less than AGTHX's 9.78% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AGTHX American Funds The Growth Fund of America Class A	9.78%	10.69%	8.99%	7.40%	4.05%	8.18%	4.30%	7.15%	11.99%	7.03%	6.61%	8.87%
STFGX State Farm Growth Fund	5.77%	6.42%	8.96%	6.39%	0.96%	15.49%	2.81%	3.33%	4.11%	3.40%	3.39%	13.76%

Frequently Asked Questions

Can I hold both STFGX and AGTHX in my portfolio?

STFGX and AGTHX have a correlation of 0.84, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, STFGX or AGTHX?

AGTHX has higher volatility (6.90%) compared to STFGX (3.85%). In terms of maximum drawdown, STFGX dropped -48.88% vs AGTHX's -51.91%.

Which has better risk-adjusted returns?

STFGX currently has the higher Sharpe Ratio (2.79 vs 1.49), 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.