Over the past year since the company went public, Shake Shack's stock has done nothing but surprise experts in the market, as the fast casual chain grows exponentially, having already gone a long way from being a food cart in Madison Square Park 15 years ago to the fastest-growing chain in the country.

The most recent Shake Shack stock numbers place the chain above Chipotle, the staple fast casual restaurant chain, and now the company's worth approximately as much as major chains such as Papa John's or Wendy's, while experts wait to see what's the next jump for this New York City burger.

According to Fortune, Shake Shack stock bounced even higher than it already was last Monday, when it reported a 12.9 percent jump in same-store sales, considerably better than the 8.6 percent market analysts were expecting, which meant total revenue going up 75 percent at $48.5 million, which means 9 cents per share instead of 3.

In all, Shake Shack stocks keep impressing the market less than a year after the company reached Wall Street.

CNBC reports that Shake Shack's stock has risen to incredible amounts, namely 230 percent since it went public last January, trumping all expectations by far and wide while fast food chains, particularly industry giant McDonald's, has been consistently reporting some of the lowest numbers in its trading history.

According to Business Insider, the after-hour stock prices of Shake Shack mean that the fast casual company's now capitalizing at around $2.8 billion, while Wendy's is at $2.85 billion and Papa John's is at $2.81 - in all, the recently IPO'd chain is already killing some of the more traditional ones.

As Slate reports, this has also meant that the company's currently getting more than another fast casual Wall Street favorite, Chipotle.

While Shake Shack's stock keeps positioning itself, the company is currently planning 12 new locations domestically in 2015 as well as five international ones.