Bloomberg US stock index futures slumped on Monday following a weekend of mounting sanctions on Russia, kicking off another potentially tumultuous week for equity investors. March contracts on the S&P 500 Index slid as much as 2.9% before trimming losses to 1.5% in New York. Futures on the Nasdaq 100 and the Dow were each down 1.3%. The poor …

Bloomberg Shares in European airlines slid after most of Europe closed its airspace to carriers from Russia, which reciprocated with its own bans. A Bloomberg gauge of European airlines dropped as much as 4.8%. In the broader market, the biggest decliners included British Airways-parent IAG SA, Deutsche Lufthansa AG and Air France-KLM. Smaller peer Finnair Oyj, which faces a wipeout …

  Bloomberg Russian markets were paralysed and traders struggled to price the ruble as international sanctions shook the country’s financial system. The Russian currency lost a third of its value in offshore trading at one point and hit an all-time low of 109.185 per dollar in Moscow. Quotes were infrequent and volatile at the start of the session, and traders …