CWB ETF Explained: Returns, Expense Ratio, Holdings, and Alternative ETFs
The SPDR Bloomberg Convertible Securities ETF (CWB) provides diversified exposure to U.S. convertible bonds and convertible preferred stocks, combining bond-like income with the potential for equity upside. With its dual characteristics and dividend appeal, it stands out as a flagship product in the convertible securities category for investors seeking a balance between income and equity participation.
What Is the SPDR Bloomberg Convertible Securities ETF?
It tracks an index composed of convertible bonds and convertible preferred stocks, offering diversified exposure to a hybrid asset class where the value of the conversion option rises with the issuer's share price, while the instrument retains its bond-like interest and principal structure even when equities underperform.
It is well suited for moderate-risk investors who want to participate in equity upside while keeping volatility lower than that of pure equities.
The ETF is passively managed (index-tracking) by State Street.
How Does the SPDR Bloomberg Convertible Securities ETF Work?
| Item | Details |
|---|---|
| Index Tracked | Bloomberg U.S. Convertible Securities Index |
| Management Style | Passive (index-tracking) |
| Rebalancing Frequency | Monthly |
| Dividend Frequency | Monthly |
| Total Expense Ratio | 0.40% |
Issuers spanning sectors such as IT, healthcare, and industrials are weighted by market capitalization, creating a portfolio with characteristics that sit between equities and fixed income. Rebalancing is carried out each month in line with the index methodology.
- A flagship ETF dedicated to the single asset class of convertible securities
- Broad diversification reduces issuer-specific default risk
SPDR Bloomberg Convertible Securities ETF: Size and Cost (AUM & Expense Ratio)
Assets under management (AUM) stand at $5.6B, with a total expense ratio of 0.40% per year.
Convertible securities ETFs sit in the middle ground between pure equity funds and pure bond funds, and the category itself tends to be relatively narrow.
<2>SPDR Bloomberg Convertible Securities ETF: Performance and Flows2>Because the fund is influenced by both underlying equity trends and the interest rate environment, it tends to exhibit higher volatility than pure bond products but a smoother trajectory than pure equity products, with the balance between these two characteristics shifting depending on the market regime.
Investor interest in convertibles tends to rise and fall with rate cycles, and inflows often increase during equity bull markets on expectations of rising conversion option value.
SPDR Bloomberg Convertible Securities ETF: Strengths and Weaknesses
The key strength lies in the ability to pursue equity upside and bond-like income simultaneously, while the drawbacks include higher volatility than pure bonds and limited liquidity within the narrow category.
💪 Key Strengths
⚠️ Points to Watch
SPDR Bloomberg Convertible Securities ETF: Alternative ETFs and Related Products
The iShares ICVT ETF shown in the table is a direct substitute within the same convertible securities category, offering a lower fee. The FCVT, CVRT, and ACVT funds take an active management approach and follow a different investment philosophy than CWB. The smaller, newer MCVT ETF has a much smaller asset base, resulting in notable liquidity differences. Investors seeking pure high-yield bond exposure instead of convertibles may also consider HYG, while those looking for preferred stock exposure can review PFF.
SPDR Bloomberg Convertible Securities ETF: Investor Checklist
Here are the key points to review before investing in CWB. Given the hybrid nature of the asset, both interest rates and equity trends need to be considered together, requiring a different perspective from that used for pure bond or pure equity funds.
| Checkpoint | What to Verify | Current Status |
|---|---|---|
| 💵 Expense Ratio | Check the cumulative impact of holding costs over the long term | Annual fee applied |
| 📈 Interest Rate Sensitivity | Review price behavior during rate-hiking cycles | Varies with market conditions |
| 🔄 Underlying Equity Trends | Monitor the share price performance of constituent issuers | Diversified across multiple issuers |
| 💧 Category Liquidity | Compare trading volume against peer ETFs | Large-cap flagship in the category |
When rising rates coincide with weakness in the underlying equities, convertible securities prices can be pressured simultaneously, leading to higher volatility than pure bond products. During sharp equity sell-offs, the decline in conversion option value can magnify losses.
It is a representative choice for investors seeking a middle-ground profile between equities and bonds. For those prioritizing a lower fee, ICVT is worth comparing, while investors preferring active management can also evaluate FCVT, CVRT, and ACVT.
SPDR Bloomberg Convertible Securities ETF: Strengths and Weaknesses
The key strength lies in the ability to pursue equity upside and bond-like income simultaneously, while the drawbacks include higher volatility than pure bonds and limited liquidity within the narrow category.
💪 Key Strengths
⚠️ Points to Watch
SPDR Bloomberg Convertible Securities ETF: Alternative ETFs and Related Products
The iShares ICVT ETF shown in the table is a direct substitute within the same convertible securities category, offering a lower fee. The FCVT, CVRT, and ACVT funds take an active management approach and follow a different investment philosophy than CWB. The smaller, newer MCVT ETF has a much smaller asset base, resulting in notable liquidity differences. Investors seeking pure high-yield bond exposure instead of convertibles may also consider HYG, while those looking for preferred stock exposure can review PFF.
| Ticker | Name | Price | Change | AUM | Total Expense Ratio | Dividend Yield | 1Y |
|---|---|---|---|---|---|---|---|
| iShares Convertible Bond ETF | $114.16 | +0.2% | $7.8B | 0.20% | 1.4% | +17.2% | |
| First Trust SSI Strategic Convertible Securities ETF | $49.48 | +0.6% | $103.4M | 0.95% | 1.12% | +18.4% | |
| Advent Convertible Bond ETF | $28.42 | +0.3% | $43.3M | 0.65% | 1.43% | +5.7% | |
| Calamos Convertible Equity Alternative ETF | $47.15 | +0.6% | $42.2M | 0.69% | 1.52% | +32.9% | |
| Miller Convertible Total Return ETF | $27.64 | +0.1% | $17.9M | 0.85% | 0.03% | - |
| Ticker | Name | Weight | Price | Change | Market Cap | P/E | Dividend Yield |
|---|---|---|---|---|---|---|---|
| Dropbox Inc | - | $35.55 | +1.4% | $7.7B | 19.7 | - | |
| WDC | Western Digital Corp | 0.03% | $447.18 | -3.0% | $161.2B | 18.5 | 0.13% |
| WDC | Western Digital Corp | 0.03% | $447.18 | -3.0% | $161.2B | 18.5 | 0.13% |
| State Street My2031 Municipal Bond ETF | 0.03% | $24.49 | +0.1% | $0.0M | - | 2.51% | |
| State Street My2031 Municipal Bond ETF | 0.03% | $24.49 | +0.1% | $0.0M | - | 2.51% | |
| BABA | Alibaba Group Holding Ltd ADR | 0.02% | $109.30 | +0.7% | $271.7B | 25.7 | 1.02% |
| BA | Boeing Co | 0.02% | $210.45 | +2.8% | $166.3B | 95.8 | 0.02% |
| LITE | Lumentum Holdings Inc | 0.01% | $926.62 | -1.0% | $83.1B | - | - |
| LITE | Lumentum Holdings Inc | 0.01% | $926.62 | -1.0% | $83.1B | - | - |
| LITE | Lumentum Holdings Inc | 0.01% | $926.62 | -1.0% | $83.1B | - | - |
SPDR Bloomberg Convertible Securities ETF: Investor Checklist
Here are the key points to review before investing in CWB. Given the hybrid nature of the asset, both interest rates and equity trends need to be considered together, requiring a different perspective from that used for pure bond or pure equity funds.
| Checkpoint | What to Verify | Current Status |
|---|---|---|
| 💵 Expense Ratio | Check the cumulative impact of holding costs over the long term | Annual fee applied |
| 📈 Interest Rate Sensitivity | Review price behavior during rate-hiking cycles | Varies with market conditions |
| 🔄 Underlying Equity Trends | Monitor the share price performance of constituent issuers | Diversified across multiple issuers |
| 💧 Category Liquidity | Compare trading volume against peer ETFs | Large-cap flagship in the category |
When rising rates coincide with weakness in the underlying equities, convertible securities prices can be pressured simultaneously, leading to higher volatility than pure bond products. During sharp equity sell-offs, the decline in conversion option value can magnify losses.
It is a representative choice for investors seeking a middle-ground profile between equities and bonds. For those prioritizing a lower fee, ICVT is worth comparing, while investors preferring active management can also evaluate FCVT, CVRT, and ACVT.
Disclaimer: This content is for informational purposes only and does not constitute investment advice. All investment responsibility lies with the investor.
This article reflects information as of July 1, 2026.