According to the WSJ today...."ForUsAll inc. a 401K provider, announced earlier this month a deal with Coinbase that will allow workers in plans it administers to invest up to 5% of their 401K contributions to bitcoin, Ethereum,litecoin, and others...

Of course this doesn't mean it will be an avalanche of money being put into them. To me it's interesting to see how things are transpiring(coming together??) with cryptos.