Beyond Meat's stock plummeted Monday after company executives struggled to explain the company's weaker-than-expected third quarter sales and answer questions about whether it will make plant-based burgers for McDonald's.
On top of that, McDonald's raised questions earlier in the day about its relationship with Beyond Meat.
McDonald's tested a Beyond Meat burger in Canada earlier this year, and Beyond Meat President and CEO Ethan Brown insisted that his company continues to work with McDonald's on the McPlant.
Brown said U.S. retail sales of Beyond Meat slowed in the July-September period despite increased availability in stores.
At the same time, Beyond Meat said sales to restaurants and other venues continue to struggle.