Bank stocks have fallen for the second consecutive day. This decline follows a report by Citi that downgraded OCBC to a "sell" rating. The downgrade was based on expectations that the bank's third-quarter earnings will be flat compared to the same period last year.

Further details about the decline and the Citi report are available. The report's expectations for OCBC's earnings appear to have contributed to the decrease in bank stocks.

More information can be found in the CNA Explains series, which provides an examination of the situation.