可转债研究：转债估值上升，挖掘结构性机会

1. Report Industry Investment Rating No information provided regarding the industry investment rating in the report. 2. Core Viewpoints of the Report - In July, the equity market rose significantly, but convertible bonds underperformed underlying stocks. The CSI Convertible Bond Index rose 3.83% from July 1 - 30, while the CSI All - Share Index rose 5.8%. Year - to - date, the CSI Convertible Bond Index and the CSI All - Share Index increased by 11.11% and 10.33% respectively [4]. - The healthcare sector was strong, and convertible bonds followed the upward trend but still underperformed underlying stocks. The healthcare and information technology convertible bond indices had the best performance in July, with increases of 7.82% and 7.13% respectively. The financial convertible bond index only rose 0.47% this month, while the underlying stocks rose 3.69% [5]. - Due to the significant rise of underlying stocks, the double - low strategy significantly underperformed the high - price and low - premium strategy in July. The double - low strategy index only rose 2.36% in July and 9.12% year - to - date, while the high - price and low - premium strategy rose 7.29% in July and 13.75% year - to - date [41]. 3. Summary by Relevant Catalogs 3.1 Convertible Bond Monthly Market Tracking - Overall Market Performance: In July, the convertible bond market underperformed underlying stocks. The CSI Convertible Bond Index rose 3.83%, and the CSI All - Share Index rose 5.8%. The convertible bond market lagged behind the CSI 500 Index by 2.92 percentage points [4]. - By Price Classification: In July, the Wande high - price convertible bond index rose 5.84%, significantly outperforming the low - price (+4.27%) and medium - price (+2.72%) indices. Year - to - date, the low - price (+11.78%) and high - price (+11.76%) convertible bonds had similar cumulative increases, both higher than the medium - price convertible bonds (+9.07%) [4]. - By Convertible Bond Stock Volume: In July, the Wande small - cap (+4.47%) and mid - cap (+4.02%) convertible bond indices were strong, outperforming the large - cap convertible bond index (+3.11%). Year - to - date, the small - cap index (+15.97%) led the large - cap (+9.02%) and mid - cap (+9.81%) indices [23]. - By Credit Rating: In July, the AA+ (+5.13%) and AA (+5.44%) convertible bond indices had relatively large increases. The AA - and below convertible bond index rose 4.54%, while the AAA high - rating convertible bonds still underperformed. Year - to - date, low - rating convertible bonds significantly outperformed high - rating ones, with the AA - and below convertible bonds rising 17.53%, and AA and AA+ rising 11.62% and 10.36% respectively [26]. - By Industry: In July, the healthcare and information technology convertible bond indices performed best, with increases of 7.82% and 7.13% respectively. The financial convertible bond index only rose 0.47%, while the underlying stocks rose 3.69%. The performance of the public utilities convertible bond index was also better than that of the underlying stocks [5]. 3.2 Convertible Bond Monthly Investment Recommendations 3.2.1 Strategy Recommendation: The Double - Low Strategy Should Focus on the Valuation Elasticity of Underlying Stocks - July Double - Low Portfolio Performance: The double - low portfolio constructed in July consisted of 22 bonds ranked in the bottom 5% by the double - low value. From July 1 - 30, the portfolio's return was 1.78% (equal - weighted allocation, without active screening), underperforming the CSI Convertible Bond Index by 2 percentage points [44]. - August Double - Low Portfolio Recommendation: After screening out bonds with high delisting/redemption risks and weak underlying stock performance and valuation expectations, 15 bonds were selected. The industries with the most bonds were light manufacturing (3), machinery and equipment (2), and non - ferrous metals (2). The average convertible bond price, conversion value, and conversion premium rate of the portfolio were 124 yuan, 117 yuan, and 7% respectively [6][48]. 3.2.2 Allocation Recommendation: Focus on the More Growth - Oriented AI and Robotics Sectors As the market risk appetite has significantly recovered, high - price and low - premium convertible bonds can be used to replace underlying stocks to better capture the upside potential of underlying stocks. It is recommended to focus on the technology sector, especially AI and robotics, which have both thematic concepts and rapid performance growth [52].