Conventional wisdom is out the door for some surging stocks as online hordes are bringing back meme stock mania.

Shares in a donut chain, camera company and meat-substitute maker surged Wednesday in a revival of meme stocks. Krispy Kreme, the North Carolina-based chain with about 350 shops, soared as much as 25% on Wednesday. GoPro, famous for its miniature action cameras, jumped 49% while Beyond Meat rose 11%.

Shares of GoPro are continuing their remarkable ascent on Wednesday. The stock is caught in a wave of renewed meme stock enthusiasm among retail investors.