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Stock Code   IPO News IPO Timetable
IPO Detail
03625 傅里葉
FOURSEMI
Listing Date2026/03/31    Listed Today
Listing Price40.000
Grey Market Performance
Last updated: 30/03/2026 21:00
  • Bright Smart
    up 84.500 +44.500 (+111.250%)
    High
    85.300
     
    Low
    65.000
    Volume
    50,600
    One Lot Profit
    +4,450.00
  • Phillip
    up 84.600 +44.600 (+111.500%)
    High
    89.000
     
    Low
    75.150
    Volume
    841,000
    One Lot Profit
    +4,460.00
  • Futu
    up 83.500 +43.500 (+108.750%)
    High
    85.500
     
    Low
    40.000
    Volume
    1,563,200
    One Lot Profit
    +4,350.00
 
Quote
Subscription Result
  • Subscription Rate
    3,118.43x
  • Guarantee One Lot Size
    800 lot
  • One Lot Success Rate
    5%
COMPANY PROFILE

Shanghai FourSemi Semiconductor Co. is a provider of power amplifier audio chips and haptic drivers in China. The Group specializes in the design of low-power audio chips, mid/high-power audio chips and haptic drivers under a fabless model to offer a wide array of solutions for emerging application scenarios, and its portfolio of products empowers various industries, including consumer electronics and intelligent vehicles.

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Power amplifier chips have extensive applications in consumer electronics and smart home devices including smartphones, tablets, smart wearables, smart displays, and smart speakers, and in automotive systems such as automotive audio systems and displays. Its products are capable of processing in-cabin acoustic data including voice commands, infotainment system output, AVAS warning sounds, and T-BOX audio system communications but do not receive voice command inputs.

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According to the report, by revenue in 2024, the Group ranked fourth among power amplifier audio chip providers globally, third among power amplifier audio chip providers in China, and fifth among haptic driver providers in China.

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In 2024, the Group delivered more than 400 million units of power amplifier audio chips in China, and more than 450 million units of power amplifier audio chips globally. Its customers include distributors and direct sales customers, including manufacturers for mobile phones, tablets, wearables, televisions, automotive electronics and vehicles.

BASIC INFORMATION
MarketHong Kong (Main Board)
Business NatureSemiconductors
Major Business AreaChina
Board Lot100
GLOBAL OFFERING
No. of Offer Shares12.00M H shares
No. of International Offer Shares9.60M H shares
No. of HK Offer Shares2.40M H shares
Offer Price$40.00 - $50.00
Stock Code3625
Sponsor(s)Guotai Junan Capital Limited, Orient Capital (Hong Kong) Limited
Underwriter(s)Guotai Junan Securities (Hong Kong) Limited, Orient Securities (Hong Kong) Limited, CCB International Capital Limited, ABCI Securities Company Limited, Futu Securities International (Hong Kong) Limited, Yellow River Securities Limited, Shenwan Hongyuan Securities (H.K.) Limited, Livermore Holdings Limited, Huafu International Securities Limited, Yuen Meta (International) Securities Limited, Zheshang International Financial Holdings Co., Limited
TIME TABLE
Application PeriodMar 23 (Mon) - noon, Mar 26 (Thu)
Price Determination DateMar 27 (Fri)
Result Announcement DateOn or before Mar 30 (Mon)
Result Announcement DateOn or before Mar 30 (Mon)
Result Announcement DateOn or before Mar 31 (Tue)
Dealings in Shares commence onMar 31, 2026. (Tue)
Reallocation of Shares Offered
Sales Statistics (HKD)
Offer Price$40.00 - $50.00
Capitalization4.48B - 5.60B
NAV / share ($)$5.46 - $6.49 (Unaudited pro forma adj NAV / share)
Use Of Proceeds
Assuming the offer price being at HKD 45.0, the net proceeds raised would be HKD 480.30M, of which
46.8% : Establishing a new research and development center to enhance R&D capabilities and technological competitiveness for power amplifier audio chips
17.8% : Procurement of automatic testing equipment and for construction of an in-house automatic testing verification line
17.3% : Pursue strategic acquisitions and partnerships
8.1% : Marketing and sales of products
10% : W Working capital
IPO NEWS
31/03/2026 09:20
{New Stock}FOURSEMI(03625) opens up 112.62% at HK$85.05
30/03/2026 18:35
{New Stock}FOURSEMI ends up 111.5% at HK$84.6 on grey market
30/03/2026 16:20
{New Stock}FOURSEMI up 100.38% at HK$80.15 on grey market
Related Document
Prospectus Prospectus  Chinese VersionProspectus  English Version
Remark： The above information is referenced from the prospectus.
  All data is calculated from the non- exercise rights(if applicable).
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