ABC News' Dan Arnall (@abcmoneyguy) reports: The market reacted very favorably to the emergence of a compromise deficit reduction plan in the U.S. Senate and President Obama’s tacit endorsement of it. Read more about the ‘Gang of Six’ plan. At around 1:15 – when the White House said the President would be making a statement at the daily briefing – the market began to rally. (see the Dow’s daily minute-by-minute chart below). The Dow finished up more than 1.6 percent.