SLGFX vs. AGTHX

Last updated Jun 4, 2026

SLGFX (SEI Institutional Managed Trust Large Cap Index Fund) and AGTHX (American Funds The Growth Fund of America Class A) are both mutual funds - SLGFX is a Large Cap Blend Equities fund managed by BlackRock, while AGTHX is a Large Cap Growth Equities fund actively managed by Capital Group. Over the past 5 years, SLGFX returned 13.79%/yr vs 12.51%/yr for AGTHX. Their correlation of 0.94 suggests significant overlap in exposure. SLGFX charges 0.25%/yr vs 0.59%/yr for AGTHX.

Performance

SLGFX vs. AGTHX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SEI Institutional Managed Trust Large Cap Index Fund (SLGFX) 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, SLGFX achieves a 11.26% return, which is significantly higher than AGTHX's 10.09% return.

SLGFX

• 1D: 0.16%
• 1M: 5.70%
• YTD: 11.26%
• 6M: 11.14%
• 1Y: 27.75%
• 3Y*: 22.08%
• 5Y*: 13.79%
• 10Y*: —

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)

SLGFX vs. AGTHX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
SLGFX SEI Institutional Managed Trust Large Cap Index Fund	11.26%	16.96%	24.07%	26.27%	-17.23%	26.17%	20.70%	31.07%	-7.23%
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%	-8.05%

Correlation

The correlation between SLGFX and AGTHX is 0.93, 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	0.93
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (All Time) Calculated using the full available price history since Feb 20, 2018	0.94

The correlation between SLGFX and AGTHX has been stable across timeframes, ranging from 0.93 to 0.95 - a consistent structural relationship.

Return for Risk

SLGFX vs. AGTHX — Risk / Return Rank

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

SLGFX

SLGFX Risk / Return Rank: 67
SLGFX Sharpe Ratio Rank: 67
SLGFX Sortino Ratio Rank: 60
SLGFX Omega Ratio Rank: 61
SLGFX Calmar Ratio Rank: 69
SLGFX Martin Ratio Rank: 79

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.

SLGFX vs. AGTHX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SEI Institutional Managed Trust Large Cap Index Fund (SLGFX) 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.

	SLGFX	AGTHX	Difference
Sharpe ratio: Return per unit of total volatility	2.40	1.77	+0.63
Sortino ratio: Return per unit of downside risk	3.27	2.43	+0.84
Omega ratio: Gain probability vs. loss probability	1.43	1.32	+0.12
Calmar ratio: Return relative to maximum drawdown	3.22	1.95	+1.27
Martin ratio: Return relative to average drawdown	14.89	7.61	+7.29
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SLGFX vs. AGTHX - Sharpe Ratio Comparison

The current SLGFX Sharpe Ratio is 2.40, which is higher than the AGTHX Sharpe Ratio of 1.77. The chart below compares the historical Sharpe Ratios of SLGFX 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

	SLGFX	AGTHX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.40	1.77	+0.63
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	—	0.81	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.75	0.71	+0.04

Drawdowns

SLGFX vs. AGTHX - Drawdown Comparison

The maximum SLGFX drawdown since its inception was -34.56%, smaller than the maximum AGTHX drawdown of -51.91%. Use the drawdown chart below to compare losses from any high point for SLGFX and AGTHX.

Drawdown Indicators

	SLGFX	AGTHX	Difference
Max Drawdown Largest peak-to-trough decline	-34.56%	-51.91%	+17.35%
Max Drawdown (1Y) Largest decline over 1 year	-8.90%	-13.76%	+4.86%
Max Drawdown (3Y) Largest decline over 3 years	-19.18%	-21.57%	+2.39%
Max Drawdown (5Y) Largest decline over 5 years	-23.24%	-36.38%	+13.14%
Max Drawdown (10Y) Largest decline over 10 years	—	-36.38%	—
Current Drawdown Current decline from peak	0.00%	-0.33%	+0.33%
Average Drawdown Average peak-to-trough decline	-4.74%	-9.20%	+4.46%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.92%	3.52%	-1.60%

Volatility

SLGFX vs. AGTHX - Volatility Comparison

The current volatility for SEI Institutional Managed Trust Large Cap Index Fund (SLGFX) is 2.85%, while American Funds The Growth Fund of America Class A (AGTHX) has a volatility of 3.67%. This indicates that SLGFX 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

	SLGFX	AGTHX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.85%	3.67%	-0.82%
Volatility (6M) Calculated over the trailing 6-month period	8.99%	11.65%	-2.66%
Volatility (1Y) Calculated over the trailing 1-year period	11.93%	15.15%	-3.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.25%	20.25%	-3.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.64%	19.69%	-0.05%

SLGFX vs. AGTHX - Expense Ratio Comparison

SLGFX has a 0.25% expense ratio, which is lower than AGTHX's 0.59% expense ratio.

Dividends

SLGFX vs. AGTHX - Dividend Comparison

SLGFX's dividend yield for the trailing twelve months is around 4.95%, 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%
SLGFX SEI Institutional Managed Trust Large Cap Index Fund	4.95%	5.48%	4.81%	1.26%	4.49%	1.28%	1.21%	1.59%	2.03%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SLGFX and AGTHX in my portfolio?

With a correlation of 0.93, SLGFX 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, SLGFX or AGTHX?

AGTHX has higher volatility (3.67%) compared to SLGFX (2.85%). In terms of maximum drawdown, SLGFX dropped -34.56% vs AGTHX's -51.91%.

Which has better risk-adjusted returns?

SLGFX currently has the higher Sharpe Ratio (2.40 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.