The most comprehensive analysis came from Credit Suisse's Johnathan Chaplin who put Clearwire's valuation at $15/share. At that price, Sprint's stake is worth about $8B. Will Clearwire get bought out for that? Who knows, but given the scarcity of spectrum, especially the kind that 4G was designed for (ie. upper-bands), $5/share for Clearwire is a joke.