Three leading news groups say they didn't transmit information about the Federal Reserve's decision not to taper before a designated embargo.
A few people in Chicago appear to have had access to the Fed's decision before anyone else in the Windy City.
European shares closed down on Friday, ending the week with a slight loss, after a choppy trading session which saw Rolls Royce and Daimler drag European bourses lower following analyst downgrades.
CBOE won a long-running court battle to prevent rival International Securities Exchange from listing options on two key stock market indexes.
India's BSE Ltd, the former Bombay Stock Exchange which has lost market share to rivals, has chosen 14 banks for a share offering planned for the first half of 2013.
LONDON/ NEW YORK, Nov 6- Investor confidence in U.S. equity markets is at an all-time low due to worries over the global economy and greater market complexity, NYSE Euronext's chief executive said on Tuesday after the company reported a 42 percent drop in quarterly profit.
NYSE said on Tuesday it was ahead of schedule in a $250 million cost-cutting plan launched earlier this year, although savings had yet to show through on the bottom line as revenue fell faster than costs.
*NYSE Euronext costs fall $82 mln year-to-date. NYSE Euronext said on Tuesday it smashed its 2012 cost cut target of $63 million by taking out $82 million of expenses, a third of the $250 million the exchange has pledged to cut by 2014..
*NYSE net quarterly revenue off 21 pct to $559 mln. LONDON, Nov 6- NYSE Euronext, the world's largest stock exchange operator, reported net revenue down 21 percent to $559 million for the third quarter, citing weaker trading in the United States and Europe.
*Group of 11 countries agree to impose transactions levy* Move to impose tax criticised by industry* Regulator warns of Europe's diverse regulation By John O'Donnell.
*Regulator warns of Europe's diverse regulation. BRUSSELS, Oct 10- A plan by a group of euro zone countries to introduce a tax on financial transactions threatens to drive more trading to London from centres such as Frankfurt, exacerbating divisions in Europe as it struggles to overcome an economic crisis.
FRANKFURT, Oct 9- The DAX top-30 index looked set to open 0.3 percent higher on Tuesday, according to premarket data from brokerage Lang& Schwarz at 0619 GMT. Related news DEUTSCHE BANK, COMMERZBANK Deutsche Bank indicated 0.3 percent higher Commerzbank indicated unchanged.
VIENNA, Oct 9- Vienna's stock exchange said on Tuesday it feared losing even more trade as a result of a tax on financial transactions set to be introduced in Austria and some other euro zone countries.
FRANKFURT, Oct 8- Deutsche BÃ¶ rse:. *Says buys back corporate bonds totalling 309 million EUR. bond concluded on October 5.
*Britain to adopt similar moves sooner. BRUSSELS, Oct 8- The European Commission may draw up rules for rescuing and closing down failing clearing houses and insurers, as regulators across the world seek to prevent collapsed businesses from wreaking havoc in financial markets.
LONDON, Oct 5- Traders found guilty of rigging Libor and other financial market benchmarks would face jail from next year under a cross-party deal to be voted through next Tuesday in the European Parliament.
LONDON, Oct 4- Russian bond trading is set to become easier for the world's top investment banks under a deal cut by the Russian stock market and one of Europe's top share settlement firms.
BRUSSELS, Oct 3- European Union lawmakers should rethink their decision to bolster "monopolies" in processing vast swathes of derivatives transactions from next year, Britain said on Wednesday.
LONDON, Oct 2- European shares were set to retreat in early trading on Tuesday after strong gains in the previous session, with uncertainty over the timing of a likely aid request by Spain seen prompting investors to cut their exposure to riskier assets.
Separately, Canadian automotive group Magna International Inc may lose the contract with BMW to build the next generation of Mini cars at its Austrian plant as BMW looks to concentrate Mini production in Britain and the Netherlands. Related news BASF Indicated 0.6 percent lower.