FILE - A Bitcoin logo is displayed on an ATM in Hong Kong, Thursday, Dec. 21, 2017. More workers may soon be able to stake some of their 401(k) retirement savings to bitcoin, as cryptocurrencies crack even deeper into the mainstream. Retirement giant Fidelity said Tuesday, April 26, 2022, that it’s launched a way for workers to put some of their 401(k) savings and contributions directly in bitcoin, potentially up to 20%, all from the account’s main menu of investment options. Fidelity said it’s the first in the industry to allow such investments without having to go through a separate brokerage window, and it's already signed up one employer that will add the offering to its plan later this year. (AP Photo/Kin Cheung, File)