Shares of Digital River, Inc. (NASDAQ: DRIV) soared approximately 50 percent in the pre-market Wednesday following an SEC 8-K filing which disclosed an extended agreement with Microsoft Corporation (NASDAQ: MSFT).

According to the filing, the two firms “entered into the Seventh Omnibus Amendment to the Microsoft Operations Digital Distribution Agreement” which extended the term of the agreement to March 31, 2017.

Digital River, Inc. traded at $24.50 after the open, up 45.31 percent.

Microsoft Corporation recently traded at $45.20, up 0.09 percent.