Can this hated hydrogen stock heat up again over the next few years? Plug Power (PLUG -4.93%), a developer of hydrogen fuel cell systems, went public near the peak of the dot- com bubble in October 1999. Its stock hit an all-time high of $1,498 per share on March 10, 2000, representing a near-tenfold gain from its reverse split-adjusted initial public offering (IPO) price of$150, but it now trades at about $3. Plug Power's stock crashed as the dot-com bubble burst, its growth slowed, and it racked up more ...