ASEC vs. MTBA

Last updated Jul 18, 2026

ASEC (American Century Securitized Credit ETF) and MTBA (Simplify MBS ETF) are both Mortgage Backed Securities funds. Both are actively managed. At a 0.17 correlation, their price movements are largely independent. ASEC charges 0.29%/yr vs 0.15%/yr for MTBA.

Performance

ASEC vs. MTBA - Performance Comparison

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

Returns By Period

ASEC

• 1D: 0.02%
• 1M: 0.27%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

MTBA

• 1D: 0.02%
• 1M: 0.12%
• 6M: -0.32%
• YTD: 0.04%
• 1Y: 4.38%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ASEC vs. MTBA - Yearly Performance Comparison

	2026 (YTD)
ASEC American Century Securitized Credit ETF	0.11%
MTBA Simplify MBS ETF	0.39%

Correlation

The correlation between ASEC and MTBA is 0.17, 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 May 28, 2026	0.17

Return for Risk

ASEC vs. MTBA — 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.

MTBA

MTBA Risk / Return Rank: 46
MTBA Sharpe Ratio Rank: 51
MTBA Sortino Ratio Rank: 49
MTBA Omega Ratio Rank: 54
MTBA Calmar Ratio Rank: 37
MTBA Martin Ratio Rank: 37

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. MTBA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Securitized Credit ETF (ASEC) and Simplify MBS ETF (MTBA). 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	MTBA	Difference
Sharpe ratio: Return per unit of total volatility	—	1.41	—
Sortino ratio: Return per unit of downside risk	—	1.97	—
Omega ratio: Gain probability vs. loss probability	—	1.27	—
Calmar ratio: Return relative to maximum drawdown	—	1.56	—
Martin ratio: Return relative to average drawdown	—	4.64	—

Drawdowns

ASEC vs. MTBA - Drawdown Comparison

The maximum ASEC drawdown since its inception was -0.46%, smaller than the maximum MTBA drawdown of -3.48%. Use the drawdown chart below to compare losses from any high point for ASEC and MTBA.

Drawdown Indicators

	ASEC	MTBA	Difference
Max Drawdown Largest peak-to-trough decline	-0.46%	-3.48%	+3.02%
Max Drawdown (1Y) Largest decline over 1 year	—	-2.82%	—
Current Drawdown Current decline from peak	0.00%	-1.34%	+1.34%
Average Drawdown Average peak-to-trough decline	-0.18%	-0.82%	+0.64%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.94%	—

Volatility

Volatility by Period

	ASEC	MTBA	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.99%	—
Volatility (6M) Calculated over the trailing 6-month period	—	2.67%	—
Volatility (1Y) Calculated over the trailing 1-year period	1.46%	3.12%	-1.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.46%	3.93%	-2.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.46%	3.93%	-2.47%

ASEC vs. MTBA - Expense Ratio Comparison

ASEC has a 0.29% expense ratio, which is higher than MTBA's 0.15% expense ratio.

Dividends

ASEC vs. MTBA - Dividend Comparison

ASEC's dividend yield for the trailing twelve months is around 0.45%, less than MTBA's 6.06% yield.

Position	TTM	2025	2024	2023
ASEC American Century Securitized Credit ETF	0.45%	0.00%	0.00%	0.00%
MTBA Simplify MBS ETF	6.06%	5.98%	6.03%	0.48%

Frequently Asked Questions

Can I hold both ASEC and MTBA in my portfolio?

ASEC and MTBA have a correlation of 0.17, 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 MTBA?

On fees, MTBA is cheaper at 0.15% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, ASEC or MTBA?

MTBA is cheaper with a 0.15% expense ratio, compared with 0.29% for ASEC.

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

MTBA has the higher dividend yield at 6.06%, compared with 0.45% for ASEC.

What is the main difference between ASEC and MTBA?

They also come from different issuers: American Century and Simplify. Their fees differ too: 0.29% for ASEC and 0.15% for MTBA.