JPMorgan shares tumble despite strong earnings

NEW YORK, April 12 (Xinhua) -- U.S. top-ranking bank JPMorgan Chase & Co. reported robust first-quarter earnings on Friday, surpassing expectations.

However, a decline in one of its crucial profit metrics compared to the previous quarter led to a drop of over 6 percent in the company's shares, which has raised questions about the banking sector's impacts on overall performance of the broader S&P 500 Index.