BLOOMBERG Citigroup Inc. joined US rivals in signalling another dismal start to the trading year, spurring a slide in Wall Street bank stocks. First-quarter revenue from fixed-income and equity trading will probably drop 15 percent, Chief Financial Officer John Gerspach said during an investor presentation. That would make 2016 the fourth straight year that the company’s revenues from those operations …

Bloomberg Europe’s biggest banks will need billions of dollars to meet collateral requirements for derivatives starting this year under the latest version of a key rule that seeks to reduce risk. The standards, which will be phased in from September, may require EU buyers and sellers of swaps to set aside between 200 billion euros ($220.5 billion) and 420 billion …

BLOOMBERG Ghana’s Agricultural Development Bank Ltd. extended its initial public offering (IPO) by a month to attract more retail investors and may sell as much as 100 million cedis ($26 million) more of stock than it initially planned. Demand for shares from individual investors surged during the final week of the original proposed sales period, Solomon Adu Atefoe, a spokesman …