The S&P 500 logged its fourth successive month of gains to close out August. Even after the late last-week retreat, stocks managed to post gains for August. The S&P 500 advanced 1.5% during the month, while the Dow Jones rose 3.2%, marking the fourth successive monthly increase for both indexes, as quoted on Yahoo Finance. The S&P 500 hit a record high in August.The Nasdaq capped the month with a 1.6% gain, notching its fifth consecutive monthly rise and its longest winning streak in nearly a year and a hal ...