A Russian trader studies markets at a private international investment banking firm in Moscow on October 9, 2008. Russia’s main stock markets rebounded more than 12 percent, recouping sharp losses suffered the day before as regulators moved to curb volatility by periodically halting trade.The dollar-denominated RTS exchange was up 12.34 percent at 855.61 points when the Federal Service for Financial Markets froze trading at 1005 GMT, the bourse’s web site said. The ruble-based MICEX was up 12.53 percent to 717.81 points at 1045 GMT. Earlier, the regulator had halted and then restarted trade. AFP PHOTO / ALEXEY SAZONOV