--- title: "Convertible Arbitrage Strategy Guide" description: "Convertible arbitrage buys a convertible bond and shorts the issuer's stock in the ratio given by the bond's delta, so the position is hedged against moves..." canonical: https://www.getswoopr.com/strategies/convertible-arbitrage/ source: "Swoopr Investment: https://www.getswoopr.com" --- ## Direct Answer > Convertible arbitrage buys a convertible bond and shorts the issuer's stock in the ratio given by the bond's delta, so the position is hedged against moves in the stock and earns the bond's coupon, the short rebate and the gains from rebalancing the hedge as the stock moves, which is a way to buy the embedded option cheaply. It tends to work when convertibles are issued cheaply, as in 2020, and in volatile markets where rebalancing the hedge harvests gamma, for funds with access to borrow and financing. Leverage, borrow and financing risk, and the liquidity of convertibles in a crisis; the strategy's losses are rare but severe. # Convertible Arbitrage ## How Does Convertible Arbitrage Work? Convertible arbitrage buys a convertible bond and shorts the issuer's stock in the ratio given by the bond's delta, so the position is hedged against moves in the stock and earns the bond's coupon, the short rebate and the gains from rebalancing the hedge as the stock moves, which is a way to buy the embedded option cheaply. **The rules:** 1. Value the convertible's embedded option and buy bonds where the implied volatility is below the stock's realized or expected volatility 2. Short the stock in proportion to the bond's delta and rebalance as the delta changes 3. Earn the coupon and the interest on short-sale proceeds while waiting 4. Watch credit: the bond's floor depends on the issuer's ability to pay **Worked example.** Holding 100 convertible bonds each convertible into 20 shares, with a delta of 0.6, is hedged by shorting 1,200 shares; as the stock rises the delta climbs and more shares are sold. The inputs are illustrative numbers, not market data. **When it tends to work.** It tends to work when convertibles are issued cheaply, as in 2020, and in volatile markets where rebalancing the hedge harvests gamma, for funds with access to borrow and financing. **When it fails.** It fails in deleveraging episodes such as 2008, when convertible prices collapsed below theoretical value as funds were forced to sell, and when a short-selling ban removes the hedge. **Main risk.** Leverage, borrow and financing risk, and the liquidity of convertibles in a crisis; the strategy's losses are rare but severe. ## What is the Convertible Arbitrage strategy? Convertible arbitrage buys a convertible bond and shorts the issuer's stock in the ratio given by the bond's delta, so the position is hedged against moves in the stock and earns the bond's coupon, the short rebate and the gains from rebalancing the hedge as the stock moves, which is a way to buy the embedded option cheaply. ## Strategy snapshot | Attribute | Value | | --- | --- | | Family | Arbitrage & Relative Value | | Subcategory | Convertible | | Investor level | Professional | | Primary objective | Relative Value / Market Neutral | | Typical time horizon | Months to Years | | Active or passive | Active / Discretionary or Rules-Based | | Complexity (1-5) | 5 | | Risk level | High | | Capital requirement | Moderate | | Leverage | Optional / Common | | Derivatives required | No | | Income-focused | No | | Hedging-focused | No | ## How Convertible Arbitrage works Value the convertible's embedded option and buy bonds where the implied volatility is below the stock's realized or expected volatility. Short the stock in proportion to the bond's delta and rebalance as the delta changes. Earn the coupon and the interest on short-sale proceeds while waiting. Watch credit: the bond's floor depends on the issuer's ability to pay. ## Who uses Convertible Arbitrage? This strategy is typically used by professional investors with a months to years time horizon who are targeting relative value / market neutral. Suitability depends on individual risk tolerance, capital availability, knowledge, and existing portfolio composition. This page is educational only and does not constitute personalized investment advice. ## Strengths - Provides a defined framework for investment decisions, reducing ad hoc behavior. - Can be evaluated systematically against historical data and benchmarks. - Clear objective and time horizon allows alignment with investor goals. ## Weaknesses and limitations - Past performance in any market regime does not guarantee future results. - Execution, cost, and tax efficiency vary by implementation and account type. - Strategy assumptions may break down in unusual market environments. - Complexity level of 5/5 means execution risk increases for less experienced investors. ## Risk considerations The risk level for Convertible Arbitrage is broadly High. Investors should understand the source of returns, the leverage employed (Optional / Common), and how the strategy behaves in bear markets, high-volatility regimes, and liquidity events before deploying capital. Related concepts: convertible arbitrage strategy, how convertible arbitrage works, convertible arbitrage risks, convertible arbitrage example. ## Editorial note Strategy descriptions here reflect general educational characterizations, not trading recommendations or guarantees of performance. Verify current details, costs, and applicable regulations before implementing any investment strategy. ## Frequently Asked Questions What is the Convertible Arbitrage strategy? Convertible arbitrage buys a convertible bond and shorts the issuer's stock in the ratio given by the bond's delta, so the position is hedged against moves in the stock and earns the bond's coupon, the short rebate and the gains from rebalancing the hedge as the stock moves, which is a way to buy the embedded option cheaply. It tends to work when convertibles are issued cheaply, as in 2020, and in volatile markets where rebalancing the hedge harvests gamma, for funds with access to borrow and financing. Leverage, borrow and financing risk, and the liquidity of convertibles in a crisis; the strategy's losses are rare but severe. What is the risk level of Convertible Arbitrage? The risk level of Convertible Arbitrage is broadly High. Leverage, borrow and financing risk, and the liquidity of convertibles in a crisis; the strategy's losses are rare but severe. It fails in deleveraging episodes such as 2008, when convertible prices collapsed below theoretical value as funds were forced to sell, and when a short-selling ban removes the hedge. What type of investor uses Convertible Arbitrage? Suitability depends on individual objectives, risk tolerance, capital, and knowledge level. Convertible Arbitrage may suit investors who have evaluated it against their specific goals and constraints. This page is educational only and does not constitute personalized investment advice. How complex is Convertible Arbitrage? Complexity for Convertible Arbitrage is 5/5. More complex strategies require deeper understanding of underlying instruments, risk factors, and execution mechanics. Complexity increases implementation risk for less experienced investors. Can Convertible Arbitrage be backtested? Any systematic strategy can be backtested, but results are subject to overfitting, survivorship bias, look-ahead bias, and unrealistic execution assumptions. Historical performance does not guarantee future results. Robust backtesting requires out-of-sample validation and regime analysis. S Swoopr Editorial Team The Swoopr Editorial Team produces independent investment education, research, and tools for understanding markets, evaluating opportunities, and managing risk. All content is educational only and does not constitute personalized investment advice. See our [editorial policy](https://www.getswoopr.com/legal/editorial-policy/) and [corrections policy](https://www.getswoopr.com/legal/corrections-policy/).