Los Angeles-based bio pharmaceutical company Puma Biotechnology Inc. was this week’s biggest mover, gaining 26 percent to end at $$42.52. Commerce-based Differential Brands Group was also among the week’s movers. The branded consumer platform gained 19 percent to end at $3.55. Manhattan Beach’s performance footwear company Skechers Inc. was the week’s biggest loser, dropping 23 percent to end at $24.99.