Russia on track to let rouble float freely - central bank chief
It has since relaxed its intervention rules to widen the rouble's trading "corridor" of rates against a basket of currencies and reduce the amount it spends before shifting the boundaries of the corridor.
Nabiullina reiterated that the central bank will let the rouble float freely from Jan. 1, scrapping the trading corridor as part of a long-term policy shift, although it will still intervene if risks to financial stability emerge.
"A floating exchange rate allows (the economy) to bear external shocks, to restrain fluctuations in interest rates," Nabiullina said.
"We will constantly monitor the situation - which now is under control - and if necessary, will intervene. But to spend the gold and foreign currency reserves over a short period of time, that will not be constructive."
Nabiullina said that even when the rouble starts floating next year the central bank will keep intervening in the currency market if risks to financial stability emerge.
"For now (the rouble) is not freely floating, but it is influenced by market factors, including oil prices," Nabiullina said. "Having said that, in our opinion fixing the exchange rate is a counterproductive decision, since this will contradict market factors which we can't control."
The central bank's stated goal is to shift away from a policy of supporting the rouble to place greater emphasis on bringing down stubbornly high inflation.