Selling intensified in mid October. On October 24 ("Black Thursday"), the market lost 11 percent of its value at the opening bell on very heavy trading. The huge volume meant that the report of prices on the ticker tape in brokerage offices around the nation was hours late, so investors had no idea what most stocks were actually trading for at that moment, increasing panic. Several leading Wall Street bankers met to find a solution to the panic and chaos on the trading floor. The meeting included Thomas W. Lamont, acting head of Morgan Bank; Albert Wiggin, head of the Chase National Bank; and Charles E. Mitchell, president of the National City Bank of New York. They chose Richard Whitney, vice president of the Exchange, to act on their behalf.