BKSE vs. ACSG

Last updated Aug 4, 2026

BKSE (BNY Mellon US Small Cap Core Equity ETF) and ACSG (American Century Small Cap Growth Insights ETF) are both Small Cap Growth Equities funds. BKSE is passively managed, while ACSG is actively managed. Their correlation of 0.89 means they have usually moved in the same direction. BKSE charges 0.04%/yr vs 0.49%/yr for ACSG.

Performance

BKSE vs. ACSG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BNY Mellon US Small Cap Core Equity ETF (BKSE) and American Century Small Cap Growth Insights ETF (ACSG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BKSE achieves a 20.27% return, which is significantly higher than ACSG's 16.78% return.

BKSE

• 1D: 1.78%
• 1M: 1.08%
• 6M: 13.72%
• YTD: 20.27%
• 1Y: 37.25%
• 3Y*: 16.98%
• 5Y*: 9.11%
• 10Y*: —
• ALL TIME*: 16.75%

ACSG

• 1D: -0.66%
• 1M: -3.40%
• 6M: 14.08%
• YTD: 16.78%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
ACSG American Century Small Cap Growth Insights ETF	$149.77K	$163.97K	$222.53K
BKSE BNY Mellon US Small Cap Core Equity ETF	$343.03K	$235.90K	$242.30K

BKSE vs. ACSG - Yearly Performance Comparison

	2026 (YTD)	2025
BKSE BNY Mellon US Small Cap Core Equity ETF	20.27%	0.84%
ACSG American Century Small Cap Growth Insights ETF	16.78%	-0.86%

Correlation

The correlation between BKSE and ACSG is 0.89, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 16, 2025	0.89

BKSE vs. ACSG - Sectors Allocation Comparison

Sectors	BKSE	ACSG
Financial Services	16.4%	7.8%
Technology	16.0%	23.4%
Industrials	14.9%	18.4%
Healthcare	14.2%	26.6%
Consumer Cyclical	13.5%	7.2%
Real Estate	7.2%	2.2%
Energy	5.9%	4.4%
Basic Materials	4.3%	4.7%
Utilities	3.1%	1.3%
Consumer Defensive	2.6%	2.0%
Communication Services	2.0%	1.9%

Return for Risk

BKSE vs. ACSG — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

BKSE

BKSE Risk / Return Rank: 87
BKSE Sharpe Ratio Rank: 86
BKSE Sortino Ratio Rank: 88
BKSE Omega Ratio Rank: 82
BKSE Calmar Ratio Rank: 90
BKSE Martin Ratio Rank: 89

ACSG

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

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

BKSE vs. ACSG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon US Small Cap Core Equity ETF (BKSE) and American Century Small Cap Growth Insights ETF (ACSG). 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.

	BKSE	ACSG	Difference
Sharpe ratio: Return per unit of total volatility	2.16	—	—
Sortino ratio: Return per unit of downside risk	3.11	—	—
Omega ratio: Gain probability vs. loss probability	1.37	—	—
Calmar ratio: Return relative to maximum drawdown	3.98	—	—
Martin ratio: Return relative to average drawdown	14.29	—	—

Drawdowns

BKSE vs. ACSG - Drawdown Comparison

The maximum BKSE drawdown since its inception was -29.08%, which is greater than ACSG's maximum drawdown of -13.28%. Use the drawdown chart below to compare losses from any high point for BKSE and ACSG.

Drawdown Indicators

	BKSE	ACSG	Difference
Max Drawdown Largest peak-to-trough decline	-29.08%	-13.28%	-15.80%
Max Drawdown (1Y) Largest decline over 1 year	-9.40%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-26.76%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-29.08%	—	—
Current Drawdown Current decline from peak	0.00%	-5.00%	+5.00%
Average Drawdown Average peak-to-trough decline	-8.85%	-2.87%	-5.98%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.61%	—	—

Volatility

Volatility by Period

	BKSE	ACSG	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.80%	—	—
Volatility (6M) Calculated over the trailing 6-month period	11.99%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	17.39%	22.34%	-4.95%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.36%	22.34%	-0.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.13%	22.34%	-0.21%

BKSE vs. ACSG - Expense Ratio Comparison

BKSE has a 0.04% expense ratio, which is lower than ACSG's 0.49% expense ratio.

Dividends

BKSE vs. ACSG - Dividend Comparison

BKSE's dividend yield for the trailing twelve months is around 1.19%, while ACSG has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020
ACSG American Century Small Cap Growth Insights ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
BKSE BNY Mellon US Small Cap Core Equity ETF	1.19%	1.26%	1.55%	1.38%	1.50%	1.17%	0.82%

Frequently Asked Questions

Can I hold both BKSE and ACSG in my portfolio?

BKSE and ACSG have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, BKSE or ACSG?

On fees, BKSE is cheaper at 0.04% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, BKSE or ACSG?

BKSE is cheaper with a 0.04% expense ratio, compared with 0.49% for ACSG.

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

BKSE has the higher dividend yield at 1.19%, compared with 0.00% for ACSG.

What is the main difference between BKSE and ACSG?

They also come from different issuers: BNY Mellon and American Century. Their fees differ too: 0.04% for BKSE and 0.49% for ACSG.