Shake Shack shares are going nuts.
Shares of the hamburger chain climbed by more than 9% in afternoon trading on Tuesday to as high as $US58.79 per share.
That’s an all-time high for the company, which went public in January.
There was no immediate news on the company.
The stock is now nearly 17% higher since its IPO, and has rallied 9% this week.
It jumped by over 120% on its first day of trading.
Here’s a chart showing the price movements over the last 5 days:
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