Wayfair's stock fell 8.02% in pre-market trading following the release of its fourth-quarter financial results.

The online furniture retailer reported a net loss of $116 million for the quarter, with earnings per share of -$0.89. While the company's adjusted EBITDA of $224 million exceeded analyst estimates of $198.7 million and operating cash flow was positive at $145 million, investors focused on the bottom-line losses.

Wayfair's earnings release highlighted "further share capture and strong profitability," but the reported net loss and negative EPS likely drove the pre-market sell-off.