Sources: Saudi Arabia PIF and Mubadala, the biggest outside investors in SoftBank's Vision Fund, have complained about high valuations paid for tech companies (Wall Street Journal)

Wall Street Journal:
Sources: Saudi Arabia PIF and Mubadala, the biggest outside investors in SoftBank's Vision Fund, have complained about high valuations paid for tech companies  —  High valuations of Vision Fund investments—and the decision-making role of SoftBank chief Masayoshi Son—have led to concerns

from Techmeme http://bit.ly/2TQBfqN