SD HEAD(SZ:002810) Shanxi Securities·2025-12-08 05:10Group 1: Bond Information - The A+ - rated ShangSheng Convertible Bond (127088.SZ) has a bond balance of 468 million yuan, accounting for 89.99% of the total issuance, and a remaining term of 3.59 years. As of December 3rd, its closing price was 128.86 yuan, with a conversion premium rate of 36.11% and a YTM of -3.04% [1] Group 2: Underlying Stock Information - The underlying stock, ShangSheng Electronics (002810.SZ), is the largest automotive acoustic product supplier in China. Its in - vehicle speakers had a 15.24% global market share in 2024, and both domestic and global market shares have increased for three consecutive years. From 1Q to 3Q in 2025, its revenue was 2.135 billion yuan (yoy +7.06%), and the net profit attributable to the parent was 135 million yuan (yoy -28.83%). Its latest total market value is 4.488 billion yuan [3] Group 3: Key Highlights of ShangSheng Convertible Bond - The company has achieved full - stack self - research in the in - vehicle acoustic system and built a three - dimensional technology system of "self - developed chips + intelligent algorithms + vehicle - grade verification". In 2025, it launched the industry's first intelligent seat pure digital link panoramic sound field solution, and earlier achieved mass production of AVAS products [4] - The proportion of high - margin products is continuously increasing, and the profit structure is optimized. The product structure has shifted from single speakers to "speakers + amplifiers + AVAS", and the supporting value per vehicle is expected to continue to rise. In H1 2025, the gross profit margins of in - vehicle amplifiers and AVAS were 21.50% and 27.85% respectively, higher than the 19.39% of in - vehicle speakers [4] - The company has a well - developed global production capacity layout and its customers cover mainstream domestic and foreign automakers. It has production bases in China, Europe, and the Americas, and its overseas revenue in 2024 was 959 million yuan, accounting for 34.56% of the total revenue [5] - The performance and valuation of the underlying stock are at a low level, and the convertible bond's indicators are also attractive. The Hefei factory is in the early stage of operation, and the low capacity utilization rate has dragged down the company's performance. It is expected that the company's profit will recover quarter by quarter as capacity is released. The expected PE in 2025 is 20.6x, which is at a historically low level and lower than the average of the auto parts industry. The market price of ShangSheng Convertible Bond is lower than the market median, and the conversion premium rate is within a reasonable range [5] Group 4: Reasonable Valuation of ShangSheng Convertible Bond - Based on the Shanxi Securities convertible bond valuation model, if the stock price remains unchanged and without considering forced redemptions and downward revisions, the reasonable valuation of ShangSheng Convertible Bond is between 129 and 135 yuan [6]