The Tokyo Stock Exchange’s Nikkei 225 Index on Friday punched through the 19,000 mark for the first time in 15 years. The 1.4% gain put the index ahead 10.4% so far this year, and up 32.4% from mid-October, when Prime Minister Shinzo Abe began pushing the country’s massive Government Pension Investment Fund to raise its allocations for domestic stocks. The yen has meanwhile been in a steep dive vs.