Todd Edgar, like most macro hedge-fund managers, couldn’t make money this year. Department of Agriculture reported record harvests and expanding global inventories. Edgar, whose $650 million firm was backed with $150 million from Goldman Sachs Group Inc.’s asset management arm in 2012, rallied 8.6 percent for the month and 9 percent for the year. Rising volatility, concern over the global economy and Bill Gross’s abrupt exit from Pacific Investment Management Co. rattled the stock, bond, currency and commodity markets in which macro firms invest.