It is a very terrible time to be bullish.
Peterffy is reacting to news from CME Group CEO Terry Duffy, who earlier this month announced bitcoin futures would debut on the CME by the end of the year.
Peterffy called this move "suicidal."
"Bitcoin has risen by 1,000 percent over the last year. It went from 700 to 7,000 -- there is nothing to say it wouldn't go to 70,0000," Peterffy said.
He argued that even 20 percent limit up or down on bitcoin, as Duffy has suggested, wouldn't protect against bitcoin's volatility.
"It could bring down the entire economy," he said.
Read the whole article https://www.cnbc.com/2017/11/15/thomas-peterffy-keep-bitcoin-away-from-the-real-economy.html