[contentcards url=”https://www.wsj.com/articles/softbank-loses-nearly-6-billion-in-quarter-as-investments-suffer-11675752219?mod=hp_lead_pos10″] By Megumi Fujikawa TOKYO—SoftBank Group Corp. 9984 -1.01%decrease; red down pointing triangle was the world’s biggest investor in startups in 2021. Now it is barely investing at all.…