Plug Power is attempting to build a profitable business around hydrogen power, but has a long way to go.

Plug Power ( PLUG 11.24% ) is a story stock. Shares of this hydrogen energy producer reached a price of $1,497.50 in the early 2000s. That, however, has to be taken with a grain of salt, because it reflects a 1-for-10 reverse stock split, meaning that the high price at the time was around $150 per share.

The current price of a share of Plug Power is roughly $2, which adjusted for the 1-for-10 reverse split, would put the price at just $0.20 compared to the $150 price just noted. Is it worth buying Plug Power after such a massive fall from grace? Let's find out.

What does Plug Power do?

Plug Power describes its business as "building an end-to-end green hydrogen ecosystem , f

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