** Shares of chipmaker Qualcomm QCOM.O fall 4.81% to $141.32 in after market trading

** Co expects Q3 revenue between $9.9 billion and $10.7 billion, the midpoint of which is below analysts' average estimates of $10.35 billion, according to data compiled by LSEG

** Sees Q3 adj profit per share to be between $2.60 and $2.80, compared to estimates of $2.67 per share

** Co reports Q2 profit of $2.85 per share vs estimates of $2.82

** Shares down ~3% YTD

(Reporting by Sriparna Roy in Bengaluru)

((Sriparna.Roy@thomsonreuters.com;))