KEY POINTS
  • Chipotle Mexican Grill is again trading at a stock market valuation that the fast-casual restaurant chain achieved pre-2016.
  • Its same-store sales continue to improve, but they are not back at the level from the earlier "teens" and with food costs rising, especially avocados, investors have reason to worry about a new all-time high stock price that CMG stock hit after earnings on Tuesday.

Chipotle Mexican Grill was back even before its big Tuesday earnings beat, but its stock has been on such a hot streak it may be entering high-priced menu territory.

The fast-casual restaurant company, laid low for years after a series of foodborne illness issues, is up more than 71% in 2019. It set a new all-time high in extended trading on Tuesday night, above $760, the latest move in a huge rebound for a company that watched its shares sink to as low as $250 as recently as 2018.