SBI Holdings has been investing into BTC, BSV and BCH blockchain. So when Japanese fund like this is invested into BCH, don't panic and sell unless they do. Relax with your BCH investment and be assured that holding won't going to hurt you. Pantera has written a very good article on this topic which you should read :) https://read.cash/@Pantera/sbi-crypto-the-new-leader-in-bitcoin-cash-mining-f0592eca