北证50指数调整，日内跌超3%。

Core Viewpoint - The North Stock Exchange 50 Index experienced a significant decline, dropping over 3% within the trading day [1] Group 1 - The adjustment of the North Stock Exchange 50 Index has led to a notable market reaction, indicating potential volatility in the sector [1] - Investors are closely monitoring the implications of this index adjustment on market sentiment and future performance [1] - The decline in the index may reflect broader economic concerns or sector-specific challenges that need to be addressed [1]