Shares in Chipotle Mexican Grill Inc. (Ticker: CMG) opened higher on Thursday morning, rising more than 6.0% to $589.00, after the restaurant operator reported better than expected first-quarter sales ahead of the opening bell. But, the stock began to falter just before lunchtime on concerns the burrito-maker will increase menu prices for the first time in three years. The price of Chipotle’s shares have since fallen into negative territory and currently trade down 3.5% on the session at $532.89 as of 1:50 p.m. ET.
Chart – Shares in Chipotle cool by lunchtime