Shares of Grab Holdings tumbled last week after it reported a wider loss than analysts had estimated. The firm says its net loss for the second quarter was about $547 million, contracting almost 30% from a year earlier. But, according to data compiled by Bloomberg, that's was more than the $335 million loss analysts had projected. On Money in the Market, Olivia Poh, Reporter at Bloomberg News tells us more about Grab shares and its competition.