The Istanbul Stock Exchange has decided to implement a one-day uptick rule on short selling in the BIST 50 index. Following the sharp price movements in the market on Friday, the Istanbul Stock Exchange management reintroduced the uptick rule on short selling. According to the announcement from the Istanbul Stock Exchange, it was decided that the uptick rule would be applied in short selling transactions for a one-day period in shares included in the BIST 50 index as of the session on February 24. In shares where short selling transactions can be conducted, the short selling transaction will be executed at a price higher than the last transaction price of the relevant capital market instrument. If the last transaction price is higher than the previous one, then the short selling transaction can also be carried out at the last price level. The Capital Markets Board had announced that all institutions’ transactions were under scrutiny following the price movements experienced last week. The Istanbul Prosecutor’s Office had also initiated an investigation ex officio into those who disseminated purposeful and misleading news causing unusual price and volume fluctuations.