Shares of Hallador (HNRG) experienced a significant drop on Tuesday, plummeting 9.96% in intraday trading. The sharp decline comes on the heels of a notable downgrade from B. Riley, a major financial services firm.

Earlier in the day, B. Riley announced its decision to downgrade Hallador Energy from a "Buy" rating to "Neutral." This change in stance was accompanied by a price target of $17 for the stock. The downgrade suggests a shift in B. Riley's outlook on Hallador's future performance and growth prospects.

The market's reaction to this news was swift and decisive, with investors rapidly adjusting their positions in response to the altered analyst perspective. The substantial sell-off underscores the weight that analyst opinions carry in influencing investor sentiment and stock valuations, particularly for smaller cap companies like Hallador.