Ackman Must Think Chipotle Can Break the Laws of Mathematics or Economics: Analyst

Pershing Square might be bad news for Chipotle, Stifel says.

Why Bill Ackman Bought a Stake in Chipotle

Stifel, Nicolaus & Co. Analyst Paul Westra is doubling down on his bearish call on Chipotle Mexican Grill, Inc. following Bill Ackman's revelation after the close on Monday that Pershing Square Holdings Ltd. had amassed a 9.9 percent stake in the stock.

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