#nyse

Fiat Chrysler Automobiles chief Sergio Marchionne rang the opening bell Wednesday for Ferrari’s first day of trading on the New York Stock Exchange and shares of the supercar maker soared.

The stock, which was up as high as $60 per share, leveled off around $57 in mid-day trading.

“This is not really a car, it’s a unique expression of art and technology,” Marchionne told Bloomberg.

Speaking to reporters in Toronto on Friday, Fiat Chrysler Automobile chief Sergio Marchionne said the official filing to spin off Ferrari could happen within the next few days.

“We are days away from filing the prospectus,” Marchionne said, according to the Detroit News.

The future standalone supercar maker will make available 10 percent of the company through its initial public offering, which is widely expected in October. The remainder of the company will be held by Fiat investors and Enzo Ferrari’s son, Piero Lardi Ferrari, who is vice chairman of the company.

Speaking at an unrelated Fiat 500 reveal last week, Fiat-Chrysler chief Sergio Marchionne said Ferrari is worth about $11 billion and he expects the prancing horse’s IPO to garner about $1.1 billion went it goes up for sale in October.

“There are clear expectations from ourselves as Ferrari brand is unique,” Marchionne said, according to Bloomberg News. “There is also a scarcity value as we are just selling a 10 percent stake.”

Marchionne’s estimate is roughly double what brokers said the Maranello-based manufacturer could be worth almost a year ago.