Sydney Sweeney has done it again - and Wall Street is loving every second of it. The blonde bombshell sent shares of American Eagle soaring Wednesday after dropping a sizzling new ad campaign that's already turning heads - and ringing tills. The teen retailer's stock jumped a punchy 9 percent, closing above $19, as it unveiled its latest denim push fronted by the Euphoria star. The cheeky campaign, dubbed 'Syd for Short,' sees Sweeney flaunting an array of skimpy cutoffs in a sun-drenched, beachside blitz. In the 15-second clip, the actress teases viewers with a coy question: 'What brand am...