 Charles Schwab Corp. SCHW, -6.87 stock advanced by 3.3 in premarket trading Monday after the broker said it posted its strongest quarterly performance in company history as it topped Wall Street expectations for profit and revenue. The brokerage firm said its third-quarter net income jumped 32 to 2.02 billion, to a record of 99 cents a share, from 1.53 billion, or 74 cents a share, in the year-ago quarter. 