In the Margins

NYSE Arca trading glitch reveals vulnerabilities

March 22, 2017

By The Wall Street Journal

A mismanaged software update that interrupted the closing of more than 340 securities on Monday has renewed worries about fragility in U.S. markets. The glitch on NYSE Arca, the largest listing marketplace for exchange-traded funds, reportedly affected popular ETFs from State Street Global Advisors, iShares and Vanguard. Read the original story from The Wall Street Journal.