[Rategbee]

Here's the only mainstream news I could find about it:


Moscow’s Micex Index (INDEXCF) slipped 2.6 percent to close at 1,466.34, after the evening session of trading was halted for about four hours for technical reasons.

Russia’s Micex-RTS Exchange resumed trading on its indexes at 9:50 p.m. yesterday in Moscow, according to a statement on the bourse’s website. Trading data from 5:41 p.m. on will be restored, the statement said.
It was the second trading halt since the Micex and RTS exchanges merged in December and the third in the past 12 months, Nikita Bekasov, spokesman for the exchange, said yesterday by phone. False data was reflected in the trading system for an unknown reason and the Micex-RTS is undertaking an investigation, he said.
Micex-RTS ‘Emergency’

“We hope there will be no loss to anyone,” Bekasov said, adding that equities and bonds trading on the Micex’s main market were affected. “We treated the situation as an emergency, making sure no one left work here at the Micex before the system was restored.”
Brazil’s Bovespa Index has delayed the start of trading three times over the past 12 months in Sao Paulo. The last time the exchange used a circuit breaker to halt trading was in October 2008.
“Clients seem frustrated,” Luis Saenz, chief executive officer of the U.S. unit of Moscow brokerage Otkritie Financial Corp., said in a phone interview yesterday. “I hope that it doesn’t resemble how they deal with the future reforms coming up.”
Russia’s Micex-RTS Exchange plans to debut a central securities depositary in July and move away from immediate settlement of transactions, changes that bring the market into line with developed market bourses and will allow conservative investors such as pension funds to buy Russian equities, Micex-RTS President Ruben Aganbegyan said in an interview at Bloomberg’s headquarters in New York on April 16.

http://www.bloomberg.com/news/2012-0...overnight.html