The drop in Walmart's (WMT) share price has wiped $83 billion off the company's valuation this year, with the stock down roughly 30 percent in the last 12 months. Investors have been running for the exit after the company lowered its outlook and profit forecast for the next three years. So who are the retailers getting it right? Amazon (AMZN) stock has been enjoying a resurgence, up almost 76 percent this year. Despite Walmart's hefty investment in its online presence Amazon continues to soak up e-commerce market share. The online retailer has focused on aggressive pricing and quick, reliable delivery, racking up a higher revenue per employee than Walmart. J.C. Penney (JCP) took a hit to it's stock price following Walmart's disappointing results, but saw same store sales for the quarter grow 4.1 % with positive sales numbers in its home, jewelry and menswear departments. Walmart can also learn some lessons from electronic retailer Best Buy (BBY). The company has made around $1 billion worth of savings from its 'renew blue' restructuring plan launched back in 2012. Best Buy's second quarter earnings this year beat estimates and the company also saw its same stores sales rise a better than expected 2.7 percent.