B. Riley & Co. suggests InterDigital run too aggressive

• Subsequent yesterday's sharp upward move (shares now +7.8% for the week overall) on a patent license arrangement with Apple and favorable earnings revision, analyst Eric Wold retains InterDigital (IDCC -1.7%) at Hold "given the one-time nature of the Q4 revenue upside and adverse impact to forward revenues."
• Retains shares at $80 target (current price $89.40).