In the following video, Fool.com contributor John Reeves gives investors his weekly wrap-up, and tells us the three biggest winners on the market this week. He tells us why MAKO Surgical (MAKO.DL) is closing the week up 10% after its earnings release. He also gives us the story behind Herbalife (HLF 1.68%) naming two of Carl Icahn's designees to its board, which shot the stock up 13%, and discusses Fusion-io (FIO.DL), up about 8.5% for the week after receiving a buy rating and a $22 price target.