Financial markets once again have been seized by meme-stock mania. In mid-July, a frenzied rally erupted around a cohort of beaten-down companies, including Opendoor Technologies Inc., Kohl’s Corp.

Julian Lin: One could quibble about the specific definition of a meme stock, as many of the high flyers as of late do not appear to have the same loyalty of past names like GameStop ( GME) or AMC ...

Shares of apparel retailer Kohl's soared on Tuesday as retail investors piled into the heavily shorted stock in a replay of ...