Block trading returns to vogue in Asia, says ITG

ITG has created a new tool to measure trading activity in Asia-Pacific, a liquidity barometer with a baseline level of activity calculated from August 2008. If that month is '1,000' on the index, then trading activity is almost back to normal. In June the barometer closed at 1,021, although in July it fell back to 970 -- the last month for which ITG has crunched the data. Other data in its analysis suggests this dip is more related to summer holidays than it is to a fall in risk taki…