SBET's dealer is Joseph Lubin, one of the founding partners of ETH. I feel this guy has two purposes: 1. Learn from Micro Strategy, playing with the concept of borrowing money to trade cryptocurrencies, simply leveraging to bet on long-term unilateral rises (how to operate can be seen in @lianyanshe's post). 2. Use this financial technique to pump up the ETH in hand and then sell it off.

SBET peaked at over 44 times, and then lost 70% overnight; this is the negative effect of the stock-coin combination.

Anyway, I have already cleared my ETH around 3600, selling high and always profiting. Waiting for the next bigger opportunity.