Struggling plant-based protein producer Beyond Meat announced Tuesday an increased availability of its products at Walmart Inc.’s stores that helped push the stock higher. Photo by Tiffany Hagler-Geard / Bloomberg

Beyond Meat Inc. shares doubled in premarket trading Wednesday, boosting its four-day rally to almost 1,300 per cent, in an echo of the meme-stock frenzies that periodically roil the market.

Shares in the struggling maker of plant-based burgers and sausages surged 100 per cent to US$7.33 at 6:38 a.m. in New York. The stock, which closed at 52 U.S. cents on Thursday, is still down about 97 per cent from its record high in 2019.

The stock began rallying Friday, and the advance picked up steam Monday, when Business Insider reported on a trader named Demitri Semenikhin who’

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