Rumors abound that Chipotle is losing its spice after below expectation revenue reports. The popular burrito fast-casual chain was lauded as bringing the end to the era of McDonalds (its progenitor).

However, a recent report in Barron’s claims that Chipotle could see as much as a 20 percent plunge in stock value. The decrease would mean that the price per share would drop below $500, a far cry from its $727.17 price per share in January. On Thursday, the stock closed at $609.56, a 16 percent decline.

Many factors contributed to the chain’s lackluster performance in the past few months. The removal of pork from over a third of its restaurants is said to have hurt sales.

In addition, Chipotle has seen a number of rising costs including healthcare and high-quality, GMO-free food.

Chipotle has not yet released a comment on its state of affairs.