Opendoor and Krispy Kreme Are This Year’s Meme Stocks. How They’re Trading Today.

Shares in Krispy Kreme have swung wildly in recent days. (Scott Olson/Getty Images)

The market’s new meme stocks were moving again Thursday as the latest bout of retail-investing mania showed no sign of slowing down. American Eagle Outfitters is the latest company to arouse interest.

Shares in real estate tech company Opendoor Technologies rose 16% in early trading. Doughnut maker Krispy Kreme dropped 2.9%, and the camera manufacturer GoPro slid 2.3%. Kohl’s , the department-store chain, was up 3.3%.

There’s no singular factor that defines a meme stock, but they tend to draw significant interest from retail investors who frequent social-media forums like Reddit’s WallStreetBets. Shares often move in a manner that is detached from the company’s underlying fundamentals.

Opendoor, Kohl’s, Krispy Kreme and GoPro all rank among the most discussed stocks on WallStreetBets over the past 24 hours, according to alternative data provider Altindex.

American Eagle may also be benefiting from the frenzy. Shares in the clothing retailer were up 9.5% after it said Hollywood A-lister Sydney Sweeney would head up its fall campaign. The announcement was trending on WallStreetBets, as well as the investing forum Stocktwits.

“[The meme-stock] surge is powered by advances in trading technology, wider use of leverage, and the rapid expansion of the options market. Confidence among retail traders is notably higher, fueled in part by recent gains in crypto markets,” wrote Mark Hackett, chief market strategist at Nationwide.

Write to George Glover at george.glover@dowjones.com