ACGR vs. IUSG

Last updated Jun 3, 2026

ACGR (American Century Large Cap Growth ETF) and IUSG (iShares Core S&P U.S. Growth ETF) are both Large Cap Growth Equities funds - ACGR tracks the Russell 1000 Growth Index while IUSG tracks the Russell 3000 Growth Index. Both are passively managed. Over the past 5 years, ACGR returned 15.34%/yr vs 15.69%/yr for IUSG. Their correlation of 0.83 suggests significant overlap in exposure. ACGR charges 0.39%/yr vs 0.04%/yr for IUSG.

Performance

ACGR vs. IUSG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Large Cap Growth ETF (ACGR) and iShares Core S&P U.S. Growth ETF (IUSG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ACGR achieves a 8.73% return, which is significantly lower than IUSG's 14.08% return.

ACGR

• 1D: -0.45%
• 1M: 7.07%
• YTD: 8.73%
• 6M: 8.10%
• 1Y: 26.66%
• 3Y*: 21.94%
• 5Y*: 15.34%
• 10Y*: —

IUSG

• 1D: -0.89%
• 1M: 7.35%
• YTD: 14.08%
• 6M: 13.91%
• 1Y: 33.89%
• 3Y*: 27.59%
• 5Y*: 15.69%
• 10Y*: 17.88%

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

ACGR vs. IUSG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
ACGR American Century Large Cap Growth ETF	8.73%	14.50%	26.66%	43.24%	-30.13%	39.24%	11.27%
IUSG iShares Core S&P U.S. Growth ETF	14.08%	21.23%	34.70%	29.28%	-28.81%	31.26%	26.99%

Correlation

The correlation between ACGR and IUSG is 0.95 - 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	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (All Time) Calculated using the full available price history since Jan 22, 2020	0.83

The correlation between ACGR and IUSG shifts across timeframes, from 0.83 (all time) to 0.97 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

ACGR vs. IUSG — Risk / Return Rank

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

ACGR

ACGR Risk / Return Rank: 43
ACGR Sharpe Ratio Rank: 50
ACGR Sortino Ratio Rank: 48
ACGR Omega Ratio Rank: 46
ACGR Calmar Ratio Rank: 34
ACGR Martin Ratio Rank: 37

IUSG

IUSG Risk / Return Rank: 59
IUSG Sharpe Ratio Rank: 64
IUSG Sortino Ratio Rank: 61
IUSG Omega Ratio Rank: 60
IUSG Calmar Ratio Rank: 52
IUSG Martin Ratio Rank: 61

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.

ACGR vs. IUSG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Large Cap Growth ETF (ACGR) and iShares Core S&P U.S. Growth ETF (IUSG). 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.

	ACGR	IUSG	Difference
Sharpe ratio Return per unit of total volatility	1.74	2.17	-0.43
Sortino ratio Return per unit of downside risk	2.37	2.93	-0.55
Omega ratio Gain probability vs. loss probability	1.30	1.37	-0.07
Calmar ratio Return relative to maximum drawdown	1.71	2.61	-0.89
Martin ratio Return relative to average drawdown	5.83	11.09	-5.26
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ACGR vs. IUSG - Sharpe Ratio Comparison

The current ACGR Sharpe Ratio is 1.74, which is comparable to the IUSG Sharpe Ratio of 2.17. The chart below compares the historical Sharpe Ratios of ACGR and IUSG, 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

	ACGR	IUSG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.74	2.17	-0.43
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.72	0.76	-0.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.88	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.71	0.38	+0.32

Drawdowns

ACGR vs. IUSG - Drawdown Comparison

The maximum ACGR drawdown since its inception was -34.54%, smaller than the maximum IUSG drawdown of -63.41%. Use the drawdown chart below to compare losses from any high point for ACGR and IUSG.

Drawdown Indicators

	ACGR	IUSG	Difference
Max Drawdown Largest peak-to-trough decline	-34.54%	-63.41%	+28.87%
Max Drawdown (1Y) Largest decline over 1 year	-15.84%	-13.07%	-2.77%
Max Drawdown (3Y) Largest decline over 3 years	-24.58%	-22.28%	-2.30%
Max Drawdown (5Y) Largest decline over 5 years	-34.54%	-32.21%	-2.33%
Max Drawdown (10Y) Largest decline over 10 years	—	-32.35%	—
Current Drawdown Current decline from peak	-0.45%	-0.98%	+0.53%
Average Drawdown Average peak-to-trough decline	-8.50%	-21.44%	+12.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.66%	3.06%	+1.60%

Volatility

ACGR vs. IUSG - Volatility Comparison

The current volatility for American Century Large Cap Growth ETF (ACGR) is 3.35%, while iShares Core S&P U.S. Growth ETF (IUSG) has a volatility of 4.23%. This indicates that ACGR experiences smaller price fluctuations and is considered to be less risky than IUSG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACGR	IUSG	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.35%	4.23%	-0.88%
Volatility (6M) Calculated over the trailing 6-month period	11.88%	12.23%	-0.35%
Volatility (1Y) Calculated over the trailing 1-year period	15.43%	15.72%	-0.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.50%	20.87%	+0.63%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.42%	20.40%	+1.02%

ACGR vs. IUSG - Expense Ratio Comparison

ACGR has a 0.39% expense ratio, which is higher than IUSG's 0.04% expense ratio.

Dividends

ACGR vs. IUSG - Dividend Comparison

ACGR's dividend yield for the trailing twelve months is around 0.09%, less than IUSG's 0.47% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ACGR American Century Large Cap Growth ETF	0.09%	0.11%	0.23%	0.37%	0.48%	0.58%	1.44%	0.00%	0.00%	0.00%	0.00%	0.00%
IUSG iShares Core S&P U.S. Growth ETF	0.47%	0.53%	0.59%	1.12%	1.07%	0.59%	0.93%	1.64%	1.32%	1.28%	1.48%	1.29%

Frequently Asked Questions

Can I hold both ACGR and IUSG in my portfolio?

With a correlation of 0.95, ACGR and IUSG 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, ACGR or IUSG?

IUSG has higher volatility (4.23%) compared to ACGR (3.35%). In terms of maximum drawdown, ACGR dropped -34.54% vs IUSG's -63.41%.

Which ETF is better, ACGR or IUSG?

On 5-year performance, IUSG leads with 15.69% vs 15.34% for ACGR. On fees, IUSG is cheaper at 0.04% per year. On volatility, ACGR has been the lower-risk option at 3.35%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ACGR or IUSG?

Over the 5-year period, IUSG has performed better with a 15.69% return vs 15.34%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ACGR or IUSG?

IUSG is cheaper with a 0.04% expense ratio, compared with 0.39% for ACGR.

Which ETF pays a higher dividend yield, ACGR or IUSG?

IUSG has the higher dividend yield at 0.47%, compared with 0.09% for ACGR.

What is the main difference between ACGR and IUSG?

ACGR tracks Russell 1000 Growth Index, while IUSG tracks Russell 3000 Growth Index. They also come from different issuers: American Century and iShares. Their fees differ too: 0.39% for ACGR and 0.04% for IUSG.

Which has better risk-adjusted returns?

IUSG currently has the higher Sharpe Ratio (2.17 vs 1.74), 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.