KeyBanc upgrades Duolingo saying engagement concerns are overstated

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(NASDAQ: DUOL) Delayed: 144.10 +9.47 (7.03%)
Previous Close $134.63    52 Week High
Open $136.50    52 Week Low
Day High $146.85    P/E N/A 
Day Low $135.00    EPS
Volume 1,641,914