1. Report Industry Investment Rating No industry investment rating information is provided in the content. 2. Core View of the Report - During the week from September 8 to September 13, 2025, construction convertible bonds remained in a relatively stable stage with median valuation and high market prices. The fundamentals of the underlying stocks are expected to gradually recover with policy support. The sector has the advantages of large scale and relatively low valuation, so construction convertible bonds may present allocation opportunities [2][6]. - The A - share market oscillated upward, with the CSI 500 and Sci - tech Innovation styles relatively dominant. The technology growth and manufacturing mainlines remained active, with concentrated trading in electronics and power equipment. Valuations in some highly - crowded sectors were high, and volatility risks needed to be guarded against [2][6]. - The convertible bond market recovered as a whole, with small - cap rebounds stronger than large - cap ones. The valuation structure was differentiated, with the valuation of high - parity bonds rising and the implied volatility slightly increasing, showing signs of style rotation. The primary market supply was stable, and clause games were frequent. Event - driven opportunities needed continuous attention [2][6]. 3. Summary by Relevant Catalogs 3.1. Macro and Construction Sector Analysis - The construction sector may stabilize. Infrastructure construction investment has maintained low - level year - on - year growth, and real estate investment has maintained negative year - on - year growth. The early issuance of local government bonds may boost the demand of the construction sector [10][17]. - This year, the equity side of the construction sector has been boosted by the "Yajiang" concept. The convertible bond side has shown internal differentiation, with building materials slightly outperforming the CSI Convertible Bond Index and building decoration under some pressure. The overall valuation is slightly equity - biased but still at a median level, and the market price is in a historically high area, with individual bond prices concentrated between 110 - 130 yuan [10][17][18]. - Financially, the construction sector is still at the bottom of the cycle. The accounts receivable days of building materials and building decoration have been on the rise since 2021 and are currently at a high level since 2015. The ratio of net operating cash flow to operating income is at a low level since 2015, indicating pressure on corporate cash collection [20]. - In terms of market price, the construction sector is currently at a historically high level. In terms of valuation, it is still in the median range, slightly leaning towards equity characteristics [24][25]. - The individual bonds in the construction sector have a large overall scale, and the market price distribution is concentrated. The ROE of the underlying stocks corresponding to the convertible bonds in Q2 2025 is generally less than 10%, and the PB historical quantiles are evenly distributed [27]. 3.2. Market Theme Weekly Review 3.2.1. Equity Theme Weekly Review - During the week, the trading themes in the equity market remained active, with the manufacturing mainline leading the gains. Solid - state battery - related indexes such as the power battery index, lithium - ion electrolyte index, and energy storage index led the rise, and the photovoltaic sector in power equipment also strengthened. The energy metals such as lithium ore and cobalt ore performed strongly. The pharmaceutical chain improved marginally, while the military sector was relatively weak. High - valuation and high - crowding sectors should be guarded against for valuation convergence risks [34]. 3.2.2. Market Weekly Tracking - **Main Indexes**: The main A - share indexes oscillated upward, with the Shenzhen Component Index performing strongly. The Sci - tech Innovation 50 and CSI 500 had stronger gains than the CSI 300 and CSI 2000. The outflow of main funds converged, and there were signs of inflow in the latter part of the week [36]. - **Sector Performance**: Technology - related sectors such as electronics, communication, non - ferrous metals, and power equipment rebounded. Funds were mainly concentrated in electronics, power equipment, and machinery, indicating a focus on technology growth and manufacturing sectors. Some sectors had high crowding and high valuations, and risks needed to be guarded against [40]. 3.2.3. Convertible Bond Market - The convertible bond market oscillated and recovered, with small - cap varieties rebounding more prominently and large - cap ones under some pressure. The overall trading activity declined. Valuations were differentiated, with the valuation of high - parity individual bonds rising and that of low - parity ones under pressure. The median market price oscillated upward, and the implied volatility increased slightly, indicating market divergence [10][47]. - Technology and cyclical sectors performed strongly. The non - ferrous metals sector led the gains, and the computer, electronics, and communication sectors also performed well. Trading was mainly concentrated in power equipment, electronics, and basic chemicals [55]. - Individual bonds generally strengthened, with cyclical and manufacturing sectors performing well. Among them, 427 convertible bonds had a week - on - week increase of 0 or more, accounting for 92.2% of the total number of convertible bonds in the market. Some of the top - performing and bottom - performing individual bonds had short - duration characteristics [61]. 3.3. Issuance and Clause Tracking - **New Bond Listings**: Three convertible bonds were listed during the week, namely Jinwei Convertible Bond, Shenglan Convertible Bond 02, and Kaizhong Convertible Bond [63]. - **Pre - issuance Updates**: A total of 15 listed companies updated their convertible bond issuance plans, including 3 at the approved - for - registration stage, 4 at the passed - by - the - listing - committee stage, 5 at the passed - by - the - shareholders' - meeting stage, and 3 at the board - proposal stage. The total scale of projects at and after the exchange - acceptance stage was 52.36 billion yuan [64][65]. - **Clause - related Announcements**: - **Expected Trigger of Downward Revision**: Five convertible bonds announced an expected trigger of downward revision, with a market - value - weighted average PB of the underlying stocks of 2.5 [71][74]. - **No Downward Revision**: Five convertible bonds announced no downward revision, with a market - value - weighted average PB of the underlying stocks of 5.9 [73][74]. - **Expected Trigger of Redemption**: Seven convertible bonds announced an expected trigger of redemption [76][79]. - **No Early Redemption**: Two convertible bonds announced no early redemption [77][79]. - **Early Redemption**: Four convertible bonds announced early redemption [78][79].