Bloomberg Bulls wondering if a rally would ever hold again got an answer on February 23, as a rousing advance in the S&P 500 salvaged the week and nearly erased losses from the worst day of the February selloff. Following three days in which every gain proved ephemeral, the 1.6 percent surge left the benchmark gauge for US equities up …

Bloomberg Austria’s finance ministry is looking at the trading rules for gold and derivatives as inspiration for drawing up regulations on cryptocurrencies for the nation and for the European Union (EU). The goal is to prevent Bitcoin and similar virtual currencies from facilitating money laundering—a crime that’s no stranger to the precious metals business— and to bring trading platforms under …

Bloomberg Pratt & Whitney succeeded in tamping down the latest crisis to threaten its $10 billion next-generation jet-engine program, with a temporary fix that will keep Airbus SE planes flying until a permanent solution is found. Pratt, a unit of United Technologies Corp., scrapped a newly introduced seal that caused engine vibrations and took almost a dozen Airbus A320neos out …