Shares of language learning platform Duolingo Inc (NASDAQ:DUOL) were last seen down 4.7% at $360.67, looking to extend their recent slide. The security marked its eighth-straight weekly loss this past Friday, moving sharply away from its May 14 record high of $544.93, though its still sporting an 11% year-to-date lead. For those looking to buy in on the dip, DUOL is currently flashing a historically bullish signal. Per Schaeffer's Senior Quantitative Analyst Rocky White, the recent pullback has Duolingo sto ...