A trading frenzy by retail investors on online forums such as Reddit's WallStreetBets in the United States sent some stocks, including GameStop, to meteoric gains earlier this year. That fuelled a copycat trading boom in Europe, raising concerns about so-called "meme stocks" in Russia.
The central bank, which had been widely expected to raise rates to rein in high inflation due to the rouble's weakness, hiked it by a bigger-than-expected 50 basis points to 5%.
"It creates room for the undervalued rouble to rebound as heightened geopolitical risks are pared back in the near-term," said MUFG Bank in a note.
"It will be feasible to introduce limits on the transactions from non-cash form into the digital rouble," Zabotkin said, adding that the central bank will stand ready to compensate for possible liquidity shortages when introducing the digital rouble.
The central bank first floated the idea of the digital rouble in October, citing the need to make payments more convenient.
Annual inflation, which stood at 5.7% in February, was expected to slow down in April, the central bank said, thanks to the base effect and the diminishing impact of the weak rouble on prices.
It was increasingly likely that inflation would be close to the upper end of the bank's 3.7-4.2% forecast range by the end of 2021, the central bank said.
The consensus forecast of 20 analysts and economists polled in late February suggested the central bank would hold its benchmark rate at 4.25% throughout 2021. Forecasts for the year-end ranged from 4.0% to 5.5%.
Analysts forecast inflation would rise to 5.3% in the first quarter of 2021 before gradually slowing below the 4% target to 3.8% by the end of the year.
Monetary policy, which is currently soft with the key rate at a historic low of 4.25%, would become neutral as soon as the economy returns to its potential.
He added that inflationary expectations had not anchored yet. The central bank has said it expects inflation to peak at around 5.5% in February-March, above the 4% target.
This share had stood at 23.3% as of Jan. 1, the central bank's data previously showed, slipping gradually as Russia stepped up its bond offerings to plug budget holes.