上交所公吿！上證50、科創50等指數重磅調整，12月13日收市後生效
今日，上交所公吿，根據指數規則，經指數專家委員會審議，上海證券交易所與中證指數有限公司決定調整上證50、上證180、上證380、科創50等指數樣本，於2024年12月13日收市後生效。
其中，上證50指數調入5只證券，上證180指數調入18只證券，科創50指數樣本無變化，科創100指數調入4只證券。
具體來看，上證50指數更換5只樣本，賽力斯、中國中車、京滬高鐵、洛陽鉬業、寒武紀調入，特變電工、上汽集團、片仔癀、中國電建、兆易創新調出。
上證50指數調樣後，業績增速改善，表徵性明顯提升，指數質量和行業分佈得到進一步優化。
今年前三季度，上證50指數成分股的歸母淨利潤同比增速從6.8%提升至8.2%，顯示出滬市龍頭公司較強的經營韌性。
指數總市值20.1萬億元，市值覆蓋率達到38.8%，小幅提升0.8個百分點。
工業、信息技術行業權重分別上升1.3%、0.3%，金融行業權重下降0.6%。
上證180指數更換18只樣本，華能水電、川投能源、賽力斯、潞安環能、合盛硅業等調入，愛旭股份、通策醫療、水井坊、四川長虹、赤峯黃金、口子窖、斯達半導等調出。
上證380指數更換38只樣本，海信視像、申能股份、赤峯黃金、上海電影、玲瓏輪胎、南京證券、長白山等調入，四川路橋、寶信軟件、南京銀行、寧波港、中煤能源等調出。
科創50指數樣本無變動，連續多個季度未達到10%的調整數量比例上限，顯示出科創板市值結構穩定性逐步提升。
目前，科創50指數備選名單包括特寶生物、艾力斯、鐵建重工、信科移動、思特威。
上證180指數有所修訂
此外，本次調整上證180指數編制方案修訂一併實施，“新經濟”權重大幅提升，收益表現優化，將更好地反映資本市場結構變化和產業轉型升級趨勢。
上證180指數本次修訂新設置個股、前五大樣本權重上限，新增行業均衡規則。
一是指數總市值31.7萬億元，市值覆蓋率達到61%，提升2.4個百分點。二是信息技術、醫藥衞生、工業、通信服務行業合計權重提升9.9%，樣本權重行業分佈基本與滬市整體行業特徵保持一致。三是120餘家成份股公司為國企央企，合計權重約七成，在境內主要規模指數中居首，是滬市上市公司的基本盤和壓艙石。四是指數收益率、穩定性進一步提升，近十年年化收益率提升約1個百分點，年化波動率降低0.1個百分點，近三年樣本週轉率下降至約8%。
修訂後，上證180作為上證寬基指數體系的“中樞”指數，將與上證50、上證380等指數更好地共同表徵滬市上市公司的整體表現。
上交所表示，未來還將持續進行研究評估，傾聽市場意見，推動指數編制方法與時俱進，更具科學性與合理性。
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