CERES the Japanese crypto cartel CERES TSE3696 has been acquiring stocks like crazy over the past 3 years, they are invested in most major exchanges in Japan. Such as 'BitFlyer' and 'Coincheck' since 2015.
The fact they invested in them when it wasn't bubbly shows how smart the people working there are, later on after the infamous bitcoin bubble and hack.
They didn't quit at all but acquired more company stocks like 'bitbank'(as of Oct 2018 it has the biggest trading volume in XRP according to coinmarketcap) and tried to create their own crypto exchange 'Mercury' as follow through.
Crypto business is highly profitable is they can manage security properly, otherwise 'coincheck' which got hacked for 500 Million would NOT survive.
And certainly, they've all learned a lot from their mistakes in 2017, further increases the probability of their success in the future.
