Crypto derivatives volume had a record month in May – and volatility contributes to fueling that growth.
Source: https://www.coindesk.com/market-wrap-bitcoin-closing-in-on-9900-as-crypto-market-volatility-persists
Market Wrap: Bitcoin Closing in on $9,900 as Crypto Market Volatility Persists
June 4, 2020
CoinDesk
