Roku acquisition by Fox Corp

Fox Corp's debt-to-equity ratio will increase by 0.15-0.25x within 120 days of the acquisition announcement as the company finances the Roku purchase, impacting its credit rating outlook.

Roku (ROKU) shareholders will experience negative abnormal returns of 8-12% within 30 days post-acquisition announcement as market reprices the deal value and factors in integration risks.

Fox Corp (FOX) stock will outperform the S&P 500 by at least 5% in the 90 days following the Roku acquisition announcement due to positive market perception of the deal's strategic value and synergies.