The latest crop of meme stocks was seeing mixed performance on Friday. Notably, shares of Opendoor Technologies Inc. and Rocket Cos. were up sharply. Rocket was trading at $16.80, up $2.03, or 13.7%, ...

Krispy Kreme, Opendoor, Rocket and Kohl’s are merely the public face of a summer boom in bets by private traders.

Krispy Kreme’s ($DNUT) stock has been on a sweet run, surging over 30% in the past month—including a remarkable 25% jump just ...