【新华500】新华500指数（989001）28日涨0.30%

Group 1 - The Xinhua 500 Index (989001) closed at 5351.17 points on January 28, with an increase of 0.30% [1] - The index experienced fluctuations, reaching a high of 5374.29 points and a low of 5322.21 points during the trading session [1] - The total trading volume of constituent stocks for the day was reported at 11.572 billion yuan [1] Group 2 - Yangjie Technology led the gainers among constituent stocks with an increase of 12.07% [2] - Hebang Biotechnology and Zhongjin Gold also showed significant gains [2] - Jiejia Weichuang experienced the largest decline among constituent stocks, falling by 5.97% [2] - China Eastern Airlines and Maiwei Co., Ltd. were among the stocks with notable declines [2]