Foreign investors have had just about enough of "Abenomics."

After pumping record amounts of cash into Japanese shares last year, they've hardly added to holdings in 2014.

Inflows are down 94 percent this year to ¥898 billion, on pace for the smallest annual amount since the 2008 global financial crisis. The month of April 2013 alone registered almost three times as much foreign investment in the stock market as all of 2014.