Perhaps the most high-profile loser, GE suffered from slashed earnings outlooks and a rare halving of its dividend under new leadership. Envision Healthcare (EVHC) : -45%

Once a high-growth favorite, the retailer faced fierce competition and repeatedly slashed its sales forecasts as consumer preferences shifted. : -46%

Even the blue-chip Dow had its share of laggards. According to CNBC : : -7% Exxon Mobil : -7% Merck : -4% Verizon : -0.8%

The utility company’s stock collapsed after it abandoned a massive nuclear power project in South Carolina, leading to state and federal investigations. : -45%

The toymaker reeled from the bankruptcy of major retailer Toys 'R' Us and declining sales for core brands like Barbie and Hot Wheels. : -44%

Plummeting natural gas prices and disappointing production results in key regions like Louisiana severely impacted this energy player. : -50%