The worst-performing stocks have been consumer-electronics names, which have lost, on average, 9.1% in the post-Thanksgiving period. The best are clothing retailers, which have lost a mere 1.4%. Going back to 1996, the picture looks a little better. Clothing retailers, general merchandisers and home-improvement stocks have shown positive returns in the Thanksgiving-to-New Year’s period, with gains of 1.75%, 2.74% and 6.31%, respectively, beating the S&P 500’s 0.82% return during that time. But consumer-electronics stores, department stores and specialty retailers have all posted negative returns. Electronics retailers have done the worst, with average losses of 4.39%.