If the SEC chair's more open attitude towards self - custody of crypto assets is implemented, it could increase investors' control over their assets. This might attract more retail and institutional investors to the market, potentially driving up the demand for mainstream cryptocurrencies like Bitcoin. The increased confidence could lead to price appreciation in the short - term. However, if concerns about security risks associated with self - custody (such as private key loss or hacking) are not properly addressed, it could also cause some investors to be cautious, leading to short - term price drops.