After-hours trading can be intriguing during breaking news, but it may also involve more risk.Camping tents erected in parking lots. Dangerous stampedes. Fistfights over Beanie Babies. Before e-commerce, Black Friday could be intimidating. And if there was a Christmas toy that every kid had to have that year, the competition was fierce. These days, retailers usually still make their highest profits around Black Friday, but the overwhelming line the day after Thanksgiving is not as impressive in person as it used to be. Between the extension of Black Friday deals over the weekend and the rise of online shopping, there are now more convenient options for consumers than the predawn crowds at retail stores. Although after-hours trading...See more