The dollar exchange rate may go up 5 kopecks during today's special session due to a sharp decrease in ruble credit rates. One-day ruble credit rates began dropping on the interbank market at about 12:00 p.m. yesterday. In addition, experts stressed that ruble credit rates had experienced a significant slump yesterday. That is why, the trading session closed at the 4-5% level. According to experts, one-day ruble credit rate reached 5-6% this morning. This probably means that the balance of correspondent accounts at Russian commercial banks went up today. As a result, today's dollar trading opened at the 29.54-ruble level, which is 5 kopecks more compared to the official dollar exchange rate.