A little-known biotechnology company just delivered the kind of explosive gains that make day traders salivate and seasoned investors extremely nervous, as shares rocketed over 600% in pre-market trading with absolutely no apparent catalyst. Galecto Inc., trading under the ticker GLTO, stunned Wall Street by surging 632% during pre-market hours on Tuesday, putting the stock […] The post GLTO stock explodes 632% but investors smell trouble appeared first on Rolling Out.