CWB — SPDR® Bloomberg Barclays Convertible Securities ETF
Data updated: 2026-09-11
CWB — SPDR® Bloomberg Barclays Convertible Securities ETF. Short Preferred / Convertible Bond · $6.20B AUM. Holdings, fees, performance and SEC filings.
CWB Fund Overview
CWB — SPDR® Bloomberg Barclays Convertible Securities ETF is a US ETF managed by SPDR Series Trust, categorised as Short Preferred / Convertible Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: SPDR Series Trust
- Category: Short Preferred / Convertible Bond
- Assets under management: $6.20B
- 1-year return: 32.4%
- Ticker: CWB
- SEC CIK: 0001064642
- SEC series ID: S000022925
- Share class ID: C000066456
CWB Holdings
Top 10 holdings of SPDR® Bloomberg Barclays Convertible Securities ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Western Digital Corp. | 5.54% |
| State Street Global Advisors | 3.58% |
| Boeing Co/the | 1.87% |
| Lumentum Holdings, Inc. | 1.44% |
| Alibaba Group Holding | 1.42% |
| Lumentum Holdings, Inc. | 1.38% |
| Bloom Energy Corp. | 1.12% |
| Wells Fargo & Company | 1.10% |
| Oracle Corp. | 1.10% |
| Nebius Group NV | 1.08% |
CWB Portfolio Allocation
Asset-class allocation of SPDR® Bloomberg Barclays Convertible Securities ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 85.6% |
| Equity | 13.9% |
| Cash & Equivalents | 3.6% |
CWB Performance
Total returns for CWB (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 21.6% |
| 1 year | 32.4% |
| 3 years (annualised) | 17.7% |
| 5 years (annualised) | 6.5% |
CWB Risk Information
Risk metrics for CWB, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 13.7%
CWB Costs and Fees
CWB costs about $40 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.40%
- Gross expense ratio: 0.40%
- Portfolio turnover: 33%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
CWB Cashflows
Over the 12 months to 2026-06, SPDR® Bloomberg Barclays Convertible Securities ETF had net inflows of $1.04B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$20.25M |
| 2026-05 | $139.93M |
| 2026-04 | $760.01M |
| 2026-03 | −$532.21M |
| 2026-02 | $56.07M |
| 2026-01 | $281.97M |
CWB Debt Constituents
Largest debt holdings of SPDR® Bloomberg Barclays Convertible Securities ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Western Digital Corp. | 5.54% |
| Lumentum Holdings, Inc. | 1.44% |
| Alibaba Group Holding | 1.42% |
| Lumentum Holdings, Inc. | 1.38% |
| Bloom Energy Corp. | 1.12% |
| Nebius Group NV | 1.08% |
| Coreweave, Inc. | 1.08% |
| Mks, Inc. | 1.01% |
| Nebius Group NV | 0.84% |
| Nebius Group NV | 0.82% |
CWB Prospectus and SEC Filings
Official SPDR® Bloomberg Barclays Convertible Securities ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2025-10-24
- Prospectus (485BPOS) — filed 2024-10-24
- Prospectus (485BPOS) — filed 2023-10-26
- Portfolio holdings (N-PORT) — filed 2026-08-28
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-26
- Annual census (N-CEN) — filed 2026-09-11
- Annual census (N-CEN) — filed 2025-09-12
Related Funds
Other Short Preferred / Convertible 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.