Why Did MercadoLibre Stock Pop -- Then Drop?

MercadoLibre (NASDAQ: MELI) stock, the "Latin Amazon.com," jumped nearly 5% in early trading Thursday before turning tail and giving back almost all its gains. (As of 11:30 a.m. ET, MercadoLibre is up only about 0.5%.) It's no secret why MercadoLibre popped -- Wall Street analyst Marcelo Santos at JPMorgan Chase upgraded the stock to "overweight" this morning. The question is: Why did MercadoLibre stock then drop again? Where to invest $1,000 right now? Our analyst team just revealed what they believe are ...