Shares of government and retail surplus seller Liquidity Services fell nearly 9% Wednesday on concerns about slowing profit margin growth, but CEO Bill Angrick says the company is focusing on long-term goals. Liquidity (LQDT) shares fell 8.8% Wednesday to 52.28, a nearly two-month closing low, after falling as much as 15.8% earlier. The drop followed comments by Jim Rallo, Liquidity's chief financial officer, at an investor