Bitcoin will make its debut on a major exchange Sunday, a landmark for the cryptocurrency that has generated enthusiasm among some investors and more than a little anxiety from others.

The Cboe Futures Exchange in Chicago will open trading in bitcoin futures at 2300 GMT on Sunday, a move that is expected to be followed a week later by a rival listing on Chicago Mercantile Exchange.

"Bitcoin bonanza takes hold of world markets," proclaimed the front page of the Times of London on Friday, reporting on the latest record price of the digital currency. 

Among those cheering the launch are the Winklevoss twins, who have been called the first bitcoin billionaires. Critics include financial commentator Jim Cramer, who warns that prices could tumble once the new trading venues open the door to "short sellers," who bet on downward moves in assets.