InterDigital rises after Q3 results beat, upbeat profit forecast

** Shares of wireless tech research and patent licensing co InterDigital IDCC.O hit near seven-week high, last up 8.1% at $346.55

** Co forecasts Q4 adj EPS of $1.72 to $1.98, above analysts' estimates of $1.71, according to data compiled by LSEG

** Reports Q3 adj EPS of $3.11, above expectations of $1.34

** Reports Q3 revenue of $193.4 mln, also surpassing expectations of $156.6 mln

** All five brokerages covering the stock rate it "buy" or higher, with a median PT of $463.46

** Up to last close, stock had risen 0.7% YTD, compared with a 14.2% increase in the Nasdaq Composite index .IXIC