SMBS — Schwab Mortgage-Backed Securities ETF
Data updated: 2026-07-24
SMBS — Schwab Mortgage-Backed Securities ETF data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Securitized (MBS/ABS/CMBS) Bond · $6.42B AUM · 0.03% expense ratio · 6.8% 1-yr return. From SEC regulatory filings.
SMBS Fund Overview
SMBS — Schwab Mortgage-Backed Securities ETF is a US ETF managed by Schwab Strategic Trust, categorised as Long Securitized (MBS/ABS/CMBS) Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: Schwab Strategic Trust
- Category: Long Securitized (MBS/ABS/CMBS) Bond
- Assets under management: $6.42B
- 1-year return: 6.8%
- Ticker: SMBS
- SEC CIK: 0001454889
- SEC series ID: S000088676
- Share class ID: C000255020
SMBS Holdings
Top 10 holdings of Schwab Mortgage-Backed Securities ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| State Street Institutional US Government Money Market Fund | 1.67% |
| Government National Mortgage Association | 0.47% |
| Freddie Mac | 0.35% |
| Freddie Mac | 0.29% |
| Fannie Mae | 0.28% |
| Freddie Mac | 0.27% |
| Freddie Mac | 0.26% |
| Freddie Mac | 0.25% |
| Freddie Mac | 0.25% |
| Government National Mortgage Association | 0.24% |
SMBS Portfolio Allocation
Asset-class allocation of Schwab Mortgage-Backed Securities ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Securitized | 98.0% |
| Cash & Equivalents | 1.7% |
SMBS Performance
Total returns for SMBS (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.9% |
| 1 year | 6.8% |
SMBS Risk Information
Risk metrics for SMBS, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.1%
SMBS Costs and Fees
SMBS costs about $3 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.03%
- Gross expense ratio: 0.03%
- Portfolio turnover: 20%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
SMBS Cashflows
Over the 12 months to 2026-02, Schwab Mortgage-Backed Securities ETF had net inflows of $5.96B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-02 | $134.52M |
| 2026-01 | $159.74M |
| 2025-12 | $146.43M |
| 2025-11 | $79.58M |
| 2025-10 | $116.26M |
| 2025-09 | $48.82M |
SMBS Debt Constituents
No individual debt constituents are reported in Schwab Mortgage-Backed Securities ETF's latest SEC N-PORT filing.
SMBS Prospectus and SEC Filings
Official Schwab Mortgage-Backed Securities ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Securitized (MBS/ABS/CMBS) Bond 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.