Why Guzman y Gomez shares are a buy after crashing on earnings results

Guzman Y Gomez (ASX: GYG) shares have been in sharp decline since 20 February.

Shares in the S&P/ASX 200 Index (ASX: XJO) Mexican fast food restaurant chain, which listed on the ASX 200 on 20 June, remain well up from the initial public offering (IPO) price of…