Key Takeaways:
- Sweetgreen stock fell 2.6% to $6.55, erasing year-to-date gains
- No cyclosporiasis cases have been linked to Sweetgreen or any producers
- Over 1,645 confirmed cases across 34 states with no identified source
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Sweetgreen stock drops 2.6% as outbreak fears erase 2026 gains
Sweetgreen stock fell 2.6% to $6.55 on Thursday, erasing its year-to-date gains as a cyclosporiasis outbreak spooked investors despite no confirmed link to the salad chain.
"Restaurant stocks have historically rebounded from food-safety scares within about a week, but the uncertainty around this outbreak's source makes the recovery path less predictable," said Medora Lee, a markets reporter at USA TODAY who analyzed the sector's response to past incidents. McDonald's shares recovered in roughly seven days after a 2018 Cyclospora outbreak linked to its salads, according to data compiled by USA TODAY.
The selloff extended across the fast-casual sector. Yum! Brands, which owns Taco Bell, fell 0.48% to $151.84 after the chain voluntarily removed lettuce, pico de gallo, guacamole and cilantro from select restaurants as a precaution. Chipotle Mexican Grill slipped 0.07% to $34.60, even as the company said it does not believe its ingredients are affected. Sweetgreen has not issued a public statement.
The Centers for Disease Control and Prevention has confirmed 1,645 cases of cyclosporiasis across 34 states, with more than 5,100 additional infections under investigation. Michigan has reported the most cases, tracking over 3,700 infections as of July 15. Health officials have not identified the contaminated source, though Michigan authorities said lettuce could be a possible vector. The parasite, Cyclospora cayetanensis, causes watery diarrhea, nausea, cramping and fatigue, with symptoms appearing two days to two weeks after exposure.
The outbreak's diffuse geographic spread and unidentified source raise the risk of prolonged disruption for restaurant chains that rely on fresh produce. Taco Bell's precautionary ingredient removal and Chipotle's public denial of contamination highlight the sector's vulnerability to consumer fear even absent confirmed links. Sweetgreen, which built its brand around fresh salads and bowls, faces particular exposure if the outbreak persists into the key summer dining season. Heating food to 158 degrees Fahrenheit kills the parasite, according to health officials, but the uncooked nature of salad ingredients leaves limited mitigation options for chains like Sweetgreen.
This article is for informational purposes only and does not constitute investment advice.
[1] Why Sweetgreen Stock Just Wiped Out This Year's Gains[2] Why Sweetgreen Stock Just Wiped Out This Year’s Gains[3] How to eat safely amid outbreak of diarrhea-causing cyclosporiasis[4] Cyclosporiasis live updates: Diarrhea outbreak could linger, experts say[5] At least 80 cases of diarrhea parasite in N.J. Don’t blame local produce.
