GM's stock surges as Softbank plans to invest billions in automaker's self-driving business
https://www.washingtonpost.com/news/the-switch/wp/2018/05/31/gms-stock-surges-as-softbank-plans-to-invest-billions-in-automakers-self-driving-business/
SoftBank will receive a nearly 20 percent equity stake in GM Cruise.