The stock's decline effectively erased as much as $300 million from Chipotle's market capitalization ($11.7 billion with its $401.05 closing price on Wednesday to $11.4 billion with its $390.78 closing price on Thursday), kind of like that time when Tesla CEO Elon Musk's tweet shaved more than half a billion dollars off Samsung's market capitalization. CNBC went so far as dubbing Van Lustbader's tweet as the "Bourne Indigestion." Slow clap.
As for the food-borne illness allegation itself, Chipotle spokesperson Chris Arnold told Eater the company hasn't received any reports of illness connected to its restaurants in NYC:
"We are aware of the post made on Twitter, however there have been no reports of illnesses at any of our New York restaurants," he said. "Moreover, we have excellent health department scores throughout the city, and we continue to have the highest standards of food safety in our restaurants."