what do you base that statement on ?
I don't know for him, but maybe it is because of Byzantium hard fork planned for October 17?
Yes Byzantium is great news for ETH. To bad alot of people are just mentioning the Chinese ICO ban. I believe the price of ETH will rise in the upcoming days to Byzantium but 0.5BTC is to much. Although I would be very happy if it did.