ASEC vs. MBSX

Last updated Jul 8, 2026

ASEC (American Century Securitized Credit ETF) and MBSX (Regan Fixed Rate MBS ETF) are both Mortgage Backed Securities funds. Both are actively managed. At a correlation of -0.08, they often move in opposite directions. ASEC charges 0.29%/yr vs 0.40%/yr for MBSX.

Performance

ASEC vs. MBSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Securitized Credit ETF (ASEC) and Regan Fixed Rate MBS ETF (MBSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

ASEC

• 1D: 0.10%
• 1M: 0.32%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

MBSX

• 1D: 0.47%
• 1M: -1.20%
• 6M: 1.68%
• YTD: 2.26%
• 1Y: 8.01%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ASEC vs. MBSX - Yearly Performance Comparison

	2026 (YTD)
ASEC American Century Securitized Credit ETF	0.10%
MBSX Regan Fixed Rate MBS ETF	2.96%

Correlation

The correlation between ASEC and MBSX is -0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 28, 2026	-0.08

Return for Risk

ASEC vs. MBSX — Risk / Return Rank

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

ASEC

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

MBSX

MBSX Risk / Return Rank: 13
MBSX Sharpe Ratio Rank: 11
MBSX Sortino Ratio Rank: 13
MBSX Omega Ratio Rank: 18
MBSX Calmar Ratio Rank: 12
MBSX Martin Ratio Rank: 13

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.

ASEC vs. MBSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Securitized Credit ETF (ASEC) and Regan Fixed Rate MBS ETF (MBSX). 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.

	ASEC	MBSX	Difference
Sharpe ratio: Return per unit of total volatility	—	0.15	—
Sortino ratio: Return per unit of downside risk	—	0.60	—
Omega ratio: Gain probability vs. loss probability	—	1.11	—
Calmar ratio: Return relative to maximum drawdown	—	0.29	—
Martin ratio: Return relative to average drawdown	—	0.84	—

Drawdowns

ASEC vs. MBSX - Drawdown Comparison

The maximum ASEC drawdown since its inception was -0.46%, smaller than the maximum MBSX drawdown of -27.57%. Use the drawdown chart below to compare losses from any high point for ASEC and MBSX.

Drawdown Indicators

	ASEC	MBSX	Difference
Max Drawdown Largest peak-to-trough decline	-0.46%	-27.57%	+27.11%
Max Drawdown (1Y) Largest decline over 1 year	—	-27.57%	—
Current Drawdown Current decline from peak	0.00%	-23.51%	+23.51%
Average Drawdown Average peak-to-trough decline	-0.19%	-7.27%	+7.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	9.53%	—

Volatility

Volatility by Period

	ASEC	MBSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	11.85%	—
Volatility (6M) Calculated over the trailing 6-month period	—	52.40%	—
Volatility (1Y) Calculated over the trailing 1-year period	1.39%	55.10%	-53.71%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.39%	54.10%	-52.71%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.39%	54.10%	-52.71%

ASEC vs. MBSX - Expense Ratio Comparison

ASEC has a 0.29% expense ratio, which is lower than MBSX's 0.40% expense ratio.

Dividends

ASEC vs. MBSX - Dividend Comparison

ASEC's dividend yield for the trailing twelve months is around 0.45%, less than MBSX's 3.58% yield.

Position	TTM	2025
ASEC American Century Securitized Credit ETF	0.45%	0.00%
MBSX Regan Fixed Rate MBS ETF	3.58%	2.77%

Frequently Asked Questions

Can I hold both ASEC and MBSX in my portfolio?

ASEC and MBSX have a correlation of -0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, ASEC or MBSX?

On fees, ASEC 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, ASEC or MBSX?

ASEC is cheaper with a 0.29% expense ratio, compared with 0.40% for MBSX.

Which ETF pays a higher dividend yield, ASEC or MBSX?

MBSX has the higher dividend yield at 3.58%, compared with 0.45% for ASEC.

What is the main difference between ASEC and MBSX?

They also come from different issuers: American Century and Regan. Their fees differ too: 0.29% for ASEC and 0.40% for MBSX.