Stamp duty from shares trading is estimated to exceed $10 billion by the end of the current financial year, more than double last year's $5.1 billion. According to figures from the Stock Exchange, turnover volume from April to December was $3,192 billion due to the volatile market. Monthly turnover volume increased from $200 billion to peak at $637 billion, before falling off to $172.4 billion. Duty collected based on the rate of 0.3 per cent was $9.5 billion. The Finance Bureau estimated in October that Hong Kong's financial reserves would exceed $400 billion by the end of next month.