Investors continued piling into risk assets while shrugging off worries around the latest in trade developments.

Elon Musk's Tesla has applied to test and eventually deploy its Robotaxi vehicles in Phoenix, Arizona, following in the footsteps of market leader Waymo.

State of play: Waymo began deploying a fleet of cars with a human driver in Philly this week. Yes, but: You can't hail one.

State law currently prevents the cars from operating without a driver behind the wheel. Waymo is pushing to change that.