Plug Power's Stock Takes a Hit Amidst Investor Investigation and Downgrades.

Shares of Plug Power, a fuel cell specialist, are down 3.2% after an analyst at KeyBanc Capital Markets downgraded the stock to market perform from outperform. This comes after another analyst at Piper Sandler slashed the price target on Plug Power's stock to $12 from $17. Investors are realizing that Plug Power's growth may not be as certain as previously thought, but there are other stocks to consider for those bullish on the hydrogen economy.