According to Amberdata, some traders bought a large number of Ethereum September expiration call options at a strike price of $4,000 on cryptocurrency exchange Deribit. Greg Magadini, director of derivatives at Amberdata, said: "Looking at the block flow this week, we are seeing a lot of buying activity for September $4,000 calls. If ETH rises above $4,000". We may test and break new all-time highs. "