On July 27, the Asahi Shimbun reported that the Bank of Japan had overestimated the value of mutual funds being held by individuals by about 30 percent. Every three months the BOJ publishes statistics called shikin junkan tōkei that cover the financial assets of households and businesses, and as of December 2017 the value of mutual funds held by households was estimated to be ¥109 trillion. However, in the report that came out in June, this number had dropped to ¥76 trillion, a difference of ¥33 trillion. That's a pretty big discrepancy.