With a gain just shy of 3%, today's rally was an equal opportunity advance, as all ten S&P 500 sectors rose by at least 1%. Since the onset of the credit crisis in February 2007 (when HSBC was one of the first to disclose losses from bad real estate loans), today's advance is the tenth occurrence where every sector gained more than 1%. Below we highlight each occurrence along with the S&P 500's performance during the following day and week. On the following day, the S&P 500 has declined five