Groupon (NASDAQ: GRPN) saw its shares plunge 8.18% in Thursday's trading session following the release of its third-quarter earnings report, which revealed a substantial miss on earnings per share (EPS) estimates. The e-commerce marketplace's disappointing results have left investors concerned about the company's financial health and future prospects.

The company reported a staggering loss of $(2.92) per share, falling far short of analysts' expectations of $0.04 per share. This represents a dramatic 984.85% decrease compared to the same period last year when Groupon posted earnings of $0.33 per share. The magnitude of this earnings miss, overshooting estimates by 8442.86%, appears to be the primary driver behind the stock's sharp decline.

Despite the earnings setback, Groupon did manage to slightly outperform on the revenue front. The company reported quarterly sales of $122.825 million, marginally beating the analyst consensus estimate of $121.986 million by 0.69%. This figure also represents a 7.29% increase from the $114.479 million reported in the same quarter last year. Additional financial metrics disclosed include billings of $416.1 million, gross profit of $111.8 million, and adjusted EBITDA of $17.5 million. However, these positive aspects were overshadowed by the significant bottom-line miss, leading to the negative market reaction.