Plug Power (PLUG) shares are soaring 6.17% in pre-market trading on Tuesday, building on the momentum from its recently released third-quarter results. The significant uptick comes as investors react positively to the company's financial performance and amid a flurry of analyst updates.

Following the Q3 results, several Wall Street analysts have reaffirmed their confidence in Plug Power. H.C. Wainwright's analyst Amit Dayal maintained a Buy rating on the stock, while TD Cowen's Jeff Osborne reiterated his Buy rating with a price target of $4.50. These positive outlooks are based on Plug Power's strong financial outlook and strategic initiatives in the clean energy sector.

However, not all analysts share the same optimism. J.P. Morgan's Bill Peterson maintained a Hold rating on Plug Power. Meanwhile, Canaccord raised its price target on the stock to $2.50 from $1.25, keeping a Hold rating, citing mixed Q3 results. The divergent views from analysts, coupled with the company's latest financial performance, appear to be fueling investor interest and contributing to the stock's significant pre-market rally.