Smoke halts trading on Philly ExchangeReutersNEW YORK, Dec 29 (Reuters) - Trading on the Philadelphia Stock Exchange was halted on Tuesday because of smoke on the trading floor but was expected to resume later in the day, said Nasdaq OMX (NDAQ.O), which owns the exchange. "PHLX will communicate a ...Smoke forces halt of trading at Nasdaq's options trading floor in PhiladelphiaLos Angeles TimesTrading Resumes At Philadelphia Stock ExchangeFOXBusinessSmoke Halts Trading at Nasdaq's Philadelphia ExchangeBusinessWeekKDKA -Cherry Hill Courier Post -FOXNewsall 91 news articles »