Market Overview - On April 3, both Shanghai and Shenzhen stock markets experienced declines with increased trading volume [1] - The aquaculture and logistics sectors saw the highest gains, while the kitchen and bathroom appliances and components sectors faced the largest declines [1] Top Stocks - The top stock by popularity was Hongbaoli (002165), which closed at the daily limit up [1] - Other notable gainers included Zhongyida (600610) and Hangang Co. (600126), while Dawi Technology (600589) was the only stock among the top ten to decline, falling by 0.83% [1] Individual Stock Analysis Hangang Co. (600126) - Hangang Co. saw a significant increase in popularity, with a trading volume reaching 12.45 million, marking one of the highest levels this year [3] - The stock opened lower but experienced a strong rally, nearly hitting the daily limit before a slight pullback, ultimately closing up by 6.36% [3] Kaimete Gas (002549) - Kaimete Gas experienced high volatility, with a trading range exceeding 15% during the day [4] - The stock opened low, surged, and then fell back, ultimately closing unchanged after previously hitting the daily limit for five consecutive trading days [4] - The recent price surge is linked to its involvement in the photolithography gas sector, with products certified by major international companies [4] Weichai Heavy Machinery (000880) - Weichai Heavy Machinery opened lower but rebounded significantly, closing up by 1.94% after a volatile trading session [5] - The stock has shown consistent gains over the past four trading days, reversing a previous downward trend [5] - The increase is attributed to its data center-related products, which have seen substantial sales and revenue growth across various sectors [5]