These innovative companies have the tools to rebound. Pfizer (PFE -0.81%) and Moderna (MRNA -3.42%) were rockstars on the stock market a few years ago. Both companies developed successful coronavirus vaccines, efforts for which they were being handsomely rewarded, financially and on the stock market. However, as the pandemic has subsided, both companies have lost their appeal in the eyes of many investors. Their shares have significantly lagged the market over the past couple of years. Is there any hope tha ...