ACSG vs. TAXF

Last updated Jun 6, 2026

ACSG (American Century Small Cap Growth Insights ETF) and TAXF (American Century Diversified Municipal Bond ETF) are both exchange-traded funds - ACSG is a Small Cap Growth Equities fund actively managed by American Century, while TAXF is a Municipal Bonds fund actively managed by American Century. Both are actively managed. At a 0.35 correlation, their price movements are largely independent. ACSG charges 0.49%/yr vs 0.29%/yr for TAXF.

Performance

ACSG vs. TAXF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Small Cap Growth Insights ETF (ACSG) and American Century Diversified Municipal Bond ETF (TAXF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ACSG achieves a 11.29% return, which is significantly higher than TAXF's 1.96% return.

ACSG

• 1D: -3.92%
• 1M: -2.71%
• YTD: 11.29%
• 6M: 9.65%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

TAXF

• 1D: -0.07%
• 1M: 0.55%
• YTD: 1.96%
• 6M: 2.25%
• 1Y: 7.91%
• 3Y*: 4.08%
• 5Y*: 1.07%
• 10Y*: —

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

ACSG vs. TAXF - Yearly Performance Comparison

	2026 (YTD)	2025
ACSG American Century Small Cap Growth Insights ETF	11.29%	1.17%
TAXF American Century Diversified Municipal Bond ETF	1.96%	0.60%

Correlation

The correlation between ACSG and TAXF is 0.35, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 17, 2025	0.35

Return for Risk

ACSG vs. TAXF — Risk / Return Rank

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

TAXF

TAXF Risk / Return Rank: 76
TAXF Sharpe Ratio Rank: 84
TAXF Sortino Ratio Rank: 87
TAXF Omega Ratio Rank: 91
TAXF Calmar Ratio Rank: 58
TAXF Martin Ratio Rank: 58

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.

ACSG vs. TAXF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Small Cap Growth Insights ETF (ACSG) and American Century Diversified Municipal Bond ETF (TAXF). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	ACSG	TAXF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	2.61	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.26	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.92	0.62	+0.30

Drawdowns

ACSG vs. TAXF - Drawdown Comparison

The maximum ACSG drawdown since its inception was -13.28%, roughly equal to the maximum TAXF drawdown of -13.93%. Use the drawdown chart below to compare losses from any high point for ACSG and TAXF.

Drawdown Indicators

	ACSG	TAXF	Difference
Max Drawdown Largest peak-to-trough decline	-13.28%	-13.93%	+0.65%
Max Drawdown (1Y) Largest decline over 1 year	—	-2.93%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-5.53%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-13.93%	—
Current Drawdown Current decline from peak	-4.12%	-0.48%	-3.64%
Average Drawdown Average peak-to-trough decline	-3.01%	-3.14%	+0.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.81%	—

Volatility

Volatility by Period

	ACSG	TAXF	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.99%	—
Volatility (6M) Calculated over the trailing 6-month period	—	2.24%	—
Volatility (1Y) Calculated over the trailing 1-year period	22.55%	3.05%	+19.50%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.55%	4.20%	+18.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.55%	4.65%	+17.90%

ACSG vs. TAXF - Expense Ratio Comparison

ACSG has a 0.49% expense ratio, which is higher than TAXF's 0.29% expense ratio.

Dividends

ACSG vs. TAXF - Dividend Comparison

ACSG has not paid dividends to shareholders, while TAXF's dividend yield for the trailing twelve months is around 3.77%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
ACSG American Century Small Cap Growth Insights ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
TAXF American Century Diversified Municipal Bond ETF	3.77%	3.68%	3.38%	2.93%	2.05%	1.58%	2.13%	2.64%	0.69%

Frequently Asked Questions

Can I hold both ACSG and TAXF in my portfolio?

ACSG and TAXF have a correlation of 0.35, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, ACSG or TAXF?

On fees, TAXF is cheaper at 0.29% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, ACSG or TAXF?

TAXF is cheaper with a 0.29% expense ratio, compared with 0.49% for ACSG.

Which ETF pays a higher dividend yield, ACSG or TAXF?

TAXF has the higher dividend yield at 3.77%, compared with 0.00% for ACSG.

What is the main difference between ACSG and TAXF?

ACSG is categorized as Small Cap Growth Equities, while TAXF is Municipal Bonds. Their fees differ too: 0.49% for ACSG and 0.29% for TAXF.