Ascendiant analyst Edward Woo lowered the firm's price target on Groupon to $1.75 from $3.25 and keeps a Buy rating on the shares. The company reported a "huge" Q4 miss and "very weak" outlook, Woo tells investors in a post-earnings research note. The analyst, while acknowledging that Groupon may continue to trade in a "weak and volatile range," believes the valuations currently present a favorable risk/reward based on Groupon's growth potential. However, poor execution and results over the past several years will increase investor's skepticism on the company's near and long term profitability, says Woo.