One of this year's early winners is Vipshop Holdings (NYSE: VIPS). The Chinese online discounter of brand-name apparel has risen 29% this month, picking up steam this week with at least three analysts boosting their price targets. One of those Wall Street pros has now jacked up his target in back-to-back weeks. The market's been rallying around Vipshop since Tencent Holdings (NASDAQOTH: TCEHY) and JD.com (NASDAQ: JD) agreed to invest a combined $863 million in the deep discounter last month.