可转债周报：转债市场小幅回暖，关注供给下行风险-20250604

Report Industry Investment Rating - No industry investment rating information is provided in the report. Core Viewpoints of the Report - During the week from May 26th to May 31st, 2025, the A-share market continued to fluctuate and consolidate, with deepening industry rotation. The pharmaceutical and biological, environmental protection sectors led the gains, while the household appliances, power equipment, and comprehensive sectors saw significant adjustments. The convertible bond market showed a slight recovery, with intensified valuation differentiation. The low-price zone compressed, and the medium and high-price zones had repair elasticity. The short-term market structure switched frequently, and the capital style shifted from high elasticity to stability and low-level repair. The primary market supply was stable, but clause games were active, with an increase in the number of early redemption and downward revision bonds. Attention should be paid to the risk of supply decline. It is recommended to focus on medium and high-price convertible bonds with low valuations and strong fundamentals, and also consider the allocation value of high-grade blue-chip convertible bonds, while flexibly participating in theme rotation opportunities [2][5]. Summary by Relevant Catalogs Market Weekly Review A-share Market - The A-share market continued to fluctuate and consolidate, with the Shanghai Composite Index down 0.03% week-on-week, the Shenzhen Component Index down 0.91%, and the ChiNext Index down 1.40%. The small and medium-cap stocks were more resilient, with the CSI 500 and CSI 2000 rising against the trend. The trading volume decreased slightly to 1.07 trillion yuan, and the average daily net outflow of main funds was 13.7 billion yuan, indicating a cautious attitude. In terms of industries, sectors with strong fundamentals or recovery expectations such as media and pharmaceuticals strengthened, while sectors such as automobiles and household appliances adjusted. Overall, the market risk appetite remained low, and the trading focus shifted towards low-valuation repair and strong fundamentals [9]. Convertible Bond Market - The convertible bond market showed a slight recovery, with the CSI Convertible Bond Index rising 0.2% week-on-week, and the average daily trading volume increasing to 5.578 billion yuan. The market activity recovered moderately. Structurally, large-cap convertible bonds were relatively stable, indicating that investors were seeking high-certainty allocations. The valuation in the parity range was significantly differentiated, with the valuation of low-parity convertible bonds generally compressed and the medium and high-parity ranges slightly repaired, showing a cautious game attitude among investors. The implied volatility increased slightly, and the median price rose slightly to 112.33 yuan, indicating a moderate recovery in market risk appetite. In terms of industries, convertible bonds in the media, beauty care, and national defense and military industries led the gains, while those in the communication, household appliances, and other high-elasticity sectors faced greater correction pressure. At the individual bond level, the top-performing bonds mostly had strong underlying stock drivers, and trading opportunities were concentrated in bonds with low valuations and strong fundamentals. Overall, the convertible bond market continued to fluctuate and consolidate, and the allocation focus shifted towards high certainty and defensive attributes [9]. Convertible Bond Allocation Suggestions - The convertible bond market showed a moderate recovery this week, with a slight repair in risk appetite and active short-term rotation trading. In terms of allocation, it is recommended to adhere to the idea of "stable allocation + theme elasticity": on the one hand, focus on large-cap blue-chip convertible bonds with high ratings, low premiums, and good liquidity for defensive purposes; on the other hand, moderately seize opportunities in medium and high-price growth convertible bonds with underlying stock drivers and strong fundamentals, focusing on high-quality varieties in advanced manufacturing, pharmaceuticals, and other sectors to balance defense and offense [7]. Market Theme Weekly Review Equity Theme Weekly Review - During the week from May 26th to May 31st, 2025, the theme trading style was significantly differentiated, and short-term game enthusiasm increased significantly. The limit-up trading style continued to lead, with the consecutive limit-up index, the first limit-up non-ST index, and the limit-up index rising 17.1%, 12.7%, and 12.5% week-on-week respectively, indicating that short-term trading funds dominated the market. Some high-growth sectors such as the innovative drug index, the pharmaceutical centralized procurement index, the financial technology index, and the nuclear power index rebounded, with week-on-week gains of over 4%, showing investors' willingness to make structural replenishments in high-quality themes. At the same time, the TMT and pan-AI sectors were under pressure, with the AI computing power index, the east-west computing power index, etc. falling by over 2%, and previously strong sectors such as cloud computing and IDC leading the decline. The automobile and humanoid robot sectors adjusted significantly, with related theme indices such as the charging station index, the automobile golden stock index, and the humanoid robot index all falling by over 3%, reflecting the market's revaluation pressure on high-valuation sectors. Overall, the market was still in the theme rotation stage, with short-term trading driven by events and sentiment, and structural differentiation and high-low switching remaining the main themes in the future [14]. Convertible Bond Weekly Review - The convertible bond market showed a slight recovery during the week from May 26th to May 31st, 2025, with overall trading activity moderately recovering, and investors preferring large-cap convertible bonds with high certainty. The CSI Convertible Bond Index rose 0.23% week-on-week, the large-cap index also rose 0.23%, while the medium and small-cap convertible bond indices fluctuated slightly. The market as a whole continued to recover moderately, with the large-cap index showing relatively strong upward momentum, indicating certain defensive characteristics. In terms of trends, the convertible bond market showed some independence compared to the equity market, reflecting the "offensive and defensive" characteristics of convertible bonds. In terms of style, the large-cap index was more active, indicating that investors were seeking certainty while also maintaining a certain degree of risk aversion. In terms of capital, the trading activity of the convertible bond market increased slightly, with the average daily trading volume rising to 5.578 billion yuan, a week-on-week increase of 64 million yuan, indicating a slight recovery in investor sentiment. Currently, the convertible bond market lacks clear trend catalysts, and investors still focus on large-cap convertible bonds with high certainty. The valuation in the parity range showed a differentiated trend. In the parity range below 80 yuan, the conversion premium rate compressed by 0.62%; in the 80-90 yuan range, the compression was even greater, reaching 1.49%. In the 100-yuan parity range, the conversion premium rate in the 90-100 yuan range slightly expanded by 0.33%, while that in the 100-110 yuan range compressed by 1.89%. In the medium and high-parity ranges, the conversion premium rates in the 110-120 yuan and 120-130 yuan ranges expanded by 1.09% and 0.04% respectively; while in the range above 130 yuan, it slightly compressed by 0.89%. Overall, the market valuation in the parity range was still in a box-shaped shock stage, reflecting investors' cautious game attitude. By market price range, the convertible bond valuation generally compressed. Convertible bonds below 90 yuan compressed by 1.07%, those in the 90-100 yuan range compressed by 12.61%, and those in the 100-110 yuan range compressed by 0.10%. In the 110-120 yuan range, it compressed by 3.31%, in the 120-130 yuan range by 3.21%, and above 130 yuan by 0.74%. Overall, the convertible bond market valuation by market price range showed obvious compression. The market was still cautious about the pressure to realize high positions, but the game sentiment among investors at low positions recovered. Currently, the market risk appetite continued to decline, and it is recommended to pay attention to the repair opportunities of bonds that have adjusted deeply and with fully compressed valuations, as well as medium and high-price bonds with strong fundamentals. The weighted implied volatility of the convertible bond market increased slightly this week. The weighted implied volatility of the entire market's convertible bonds narrowed from 18.8% on Monday to 19.1% on Friday, indicating that the overall market risk appetite was still relatively cautious. Investors preferred convertible bond assets with strong defensive attributes when market volatility increased. The elasticity of convertible bonds provided certain repair opportunities, but the implied volatility remained at a low level, and the market's expectation of significant future volatility was still moderate, reflecting that investors preferred stable allocations. In terms of strategy, it is necessary to defend while attacking, and accumulate safety margins through bond floor protection and clause games. The median convertible bond price increased slightly this week. The median convertible bond price rose slightly from 112.29 yuan last Friday to 112.33 yuan, showing a fluctuating pattern during the week. Currently, the convertible bond market continued to fluctuate and consolidate, and the moderate recovery of the price median reflected that the risk appetite had not significantly recovered, and the convertible bond market had no clear trend catalyst [17]. Weekly Market Outlook - Looking ahead, the A-share market is expected to continue its structural rotation pattern, with the market style becoming more balanced, and the trading focus shifting from high-elasticity themes to low-valuation and stable-growth sectors. In the short term, attention should be paid to the correction risk of high-position sectors, and sectors with strong fundamentals and recovery expectations such as consumption and pharmaceuticals are expected to continue to attract incremental funds. In the convertible bond market, while waiting for clear trend catalysts, trading activity may moderately decline following the equity market. The allocation value of medium and high-price convertible bonds with low premiums and strong underlying stock drivers is prominent. At the same time, attention should be paid to sectors with certain certainty such as basic chemicals and transportation, given the increasing scarcity of large-scale bank convertible bonds. In terms of strategy, it is recommended to pay attention to low-level repair opportunities, and focus on bonds with fully adjusted valuations, "bond floor + underlying stock catalysts", while controlling the risk of crowded trading [19].