MTBA — Simplify MBS ETF
Data updated: 2026-09-11
MTBA — Simplify MBS ETF. Alternative · $1.55B AUM · 0.15% expense ratio · 4.2% 1-yr return. Holdings, fees, performance and SEC filings.
MTBA Fund Overview
MTBA — Simplify MBS ETF is a US ETF managed by Simplify Exchange Traded Funds, categorised as Alternative. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: Simplify Exchange Traded Funds
- Category: Alternative
- Assets under management: $1.55B
- 1-year return: 4.2%
- Ticker: MTBA
- SEC CIK: 0001810747
- SEC series ID: S000082966
- Share class ID: C000246389
MTBA Holdings
Top 10 holdings of Simplify MBS ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Simplify Exchange Traded Funds | 94.59% |
| Federal National Mortgage Association | 27.22% |
| Federal National Mortgage Association | 24.06% |
| Federal National Mortgage Association | 18.74% |
| Federal National Mortgage Association | 13.60% |
| Federal National Mortgage Association | 8.22% |
| Federal National Mortgage Association | 5.65% |
| Federal National Mortgage Association | 3.05% |
| United States Of America - Bureau Of The Public Debt | 2.86% |
| United States Of America - Bureau Of The Public Debt | 1.41% |
MTBA Portfolio Allocation
Asset-class allocation of Simplify MBS ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Securitized | 101.3% |
| Equity | 94.6% |
| Fixed Income | 5.2% |
MTBA Performance
Total returns for MTBA (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.3% |
| 1 year | 4.2% |
| 3 years (annualised) | 5.2% |
MTBA Risk Information
Risk metrics for MTBA, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 2.7%
MTBA Costs and Fees
MTBA costs about $15 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.15%
- Gross expense ratio: 0.25%
- Portfolio turnover: 1376%
- Brokerage commissions: 0.01 bps of average net assets (SEC N-CEN)
MTBA Cashflows
Over the 12 months to 2026-06, Simplify MBS ETF had net inflows of $206.51M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$19.64M |
| 2026-05 | −$98.18M |
| 2026-04 | −$26.05M |
| 2026-03 | $22.56M |
| 2026-02 | $7.59M |
| 2026-01 | $18.94M |
MTBA Debt Constituents
Largest debt holdings of Simplify MBS ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Of America - Bureau Of The Public Debt | 2.86% |
| United States Of America - Bureau Of The Public Debt | 1.41% |
| United States Of America - Bureau Of The Public Debt | 0.97% |
MTBA Prospectus and SEC Filings
Official Simplify MBS ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2025-10-28
- Prospectus (485BPOS) — filed 2024-10-28
- Prospectus supplement (497) — filed 2025-10-31
- Portfolio holdings (N-PORT) — filed 2026-08-24
- Portfolio holdings (N-PORT) — filed 2026-05-27
- Portfolio holdings (N-PORT) — filed 2026-02-23
- Annual census (N-CEN) — filed 2026-09-11
- Annual census (N-CEN) — filed 2025-09-08
Related Funds
Other Alternative funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.