By Bret Kenwell Robinhood stock has rallied hard this week. Is it a temporary pop or a sustainable move to the upside? It’s been one strong run for Robinhood (HOOD) – Get Robinhood Markets, Inc. Class A Report stock over the past few days. From Monday’s low to this week’s high, shares climbed more than 34%. While GameStop (GME) – Get GameStop Corp. Class A Report and AMC Entertainment (AMC) – Get AMC Entertainment Holdings, Inc. Class A Report have been the two leaders lately, growth stocks, meme stocks and other beaten down names have been on the mend. The question becomes, just how sustainab…