Passive buying at the end of msci trading refers to that in the late stage of stock market trading, because MSCI (Morgan Stanley Capital International) adjusted its China index, funds passively tracking the index had to adjust their positions accordingly. These passive funds must buy or sell the corresponding stocks to match the adjustment of the index. In this case, msci's passive buying at the end of the trading day means that these passive funds bought at the end of the trading day.
In the case of msci passively buying at the end of the transaction, if a stock is newly included in the MSCI China Index, then at the end of the transaction, the passive fund must buy the stock to coordinate with the adjustment of the index. This may lead to a sudden rise in the stock in the late session, because passive funds must buy enough stocks in the shortest time to match the adjustment of the index.