Shares of Brookings-based Daktronics plummeted Wednesday after the company filed paperwork with the Securities and Exchange Commission that cast doubt on its future viability.

The scoreboard manufacturer, one of South Dakota’s biggest international success stories, saw its stock price decline 39 percent after filing paperwork to delay the release of its earnings report “in order to address the determination that there is a substantial doubt about the company’s ability to continue as a going concern.”

NEWS: Construction company: TIF-backed housing project on track despite cash flow challenges