CME trading halt disrupts global markets
Chicago-based exchange hit by fault at data centre, stopping futures trading in equities, bonds and commodities
Chicago-based exchange hit by fault at data centre, stopping futures trading in equities, bonds and commodities

Tech shares extend recent declines as rising debt piles in many major economies concern investors

Doubts over December interest rate cut from Federal Reserve exacerbate jitters about high valuations

Corporates try to take advantage of market rebounds rather than risk further turbulence or US midterm elections

Buyers stayed away during the crucial annual buying period amid pessimism over geopolitical tensions and the global economy

The statistical blind spot could affect everything from interest rate cuts to investment decisions

The real challenges are not fragmentation along national lines or competition between different types of trading