This might interest you. Not sure it's as applicable to CTIX by itself as it is to the whole stock market, but it is scary imho.
"While the Bank of Japan’s name is nowhere to be found in regulatory filings on major stock investors, the monetary authority’s exchange-traded fund purchases have made it a top 10 shareholder in about 90 percent of the Nikkei 225 stock average, according to estimates compiled by Bloomberg from public data. It’s now a major owner of more Japanese blue-chips than both BlackRock Inc., the world’s largest money manager, and Vanguard Group, which oversees more than $3 trillion."
http://www.japantimes.co.jp/news/2016/04/25/b...5tPUPQ8KnP
"While the Bank of Japan’s name is nowhere to be found in regulatory filings on major stock investors, the monetary authority’s exchange-traded fund purchases have made it a top 10 shareholder in about 90 percent of the Nikkei 225 stock average, according to estimates compiled by Bloomberg from public data. It’s now a major owner of more Japanese blue-chips than both BlackRock Inc., the world’s largest money manager, and Vanguard Group, which oversees more than $3 trillion."
http://www.japantimes.co.jp/news/2016/04/25/b...5tPUPQ8KnP