Investment company Freedom Finance sold about 15 million shares of the trading floor during the pre-IPO of St. Petersburg Exchange, earning $155.7 million in net income. Consequently, the sale of shares took place at a price of $13.4, or about ₽1 thousand per paper, and the entire exchange is valued at more than $1.5 billion. SPB Exchange plans to announce an IPO on its own site this week, and the offering itself will take place after November 18, Kommersant sources said.