RBC Capital analyst Stephen Walker raised his price target on Freeport McMoRan (FCX) to $22, modeling an improvement to the company's balance sheet and potential for capital return if the progressing negotiations toward the selldown of Grasberg assets to Rio Tinto (RIO) for $5.1B proceeds. Walker adds that the capital could also be used toward Freeport McMoRan commencing the Lone Star brown fields expansion and El Abra pre-development work. The analyst keeps his Sector Perform rating, saying his NAV and financial estimates for Freeport McMoRan have improved.