Tesla Launches Robotaxi in Miami, Waymo’s July 4th Stumble, Momenta IPOs in Hong Kong

This week on Autonomy Signals, Grayson Brulte and Rob Grant discuss Tesla’s Unsupervised Robotaxi launch in Miami, Waymo’s July 4th stumble in San Francisco, and Momenta’s oversubscribed IPO on the Hong Kong Stock Exchange.

On July 5, 2026, Tesla launched Unsupervised Robotaxi service in Miami, its first unsupervised market outside of Texas, with retrofitted Model Ys operating through heavy rain and flooded roadways during the heart of hurricane season.

Grayson was on the ground for launch day, riding through South Florida’s mini lakes without a single hesitation from the vehicle, and uncovered a Cybercab staging lot near Miami International Airport with dozens of vehicles ready to deploy. The Miami launch is a deliberate stress test of Tesla’s camera-only system against the exact adverse weather conditions currently under NHTSA engineering analysis, and the receipts reveal a premium pricing experiment running 3X to 4X the base fare of Tesla’s Texas markets.

Then there is Waymo, whose vehicles bricked across San Francisco on the 4th of July as fireworks, road closures, dense crowds, and connectivity failures overwhelmed the fleet. Vehicles idled until their batteries depleted and had to be towed, one Waymo burned, and San Francisco officials have launched inquiries into the incident.

The July 4th stumble potentially exposed a remote assistance bottleneck that makes Waymo’s lean human supervision model the critical scaling constraint in burst demand emergencies, threatening the path to one million weekly rides as regulators eye special event requirements and remote operator staffing ratios.

Closing out the show, Grayson and Rob discuss Momenta’s listing on the Hong Kong Stock Exchange as the market’s first physical AI stock, with the retail tranche oversubscribed 414 times and 14 cornerstone investors including BlackRock, Fidelity International, GIC, Mercedes-Benz, and BYD.

With its software running in over 900,000 vehicles and licensing revenue growing 42-fold over three years, Momenta’s IPO signals that institutional investors are shifting their preference away from speculative capital-intensive deployments towards proven physical AI providers.

Episode Chapters

• 00:00 KPMG Sponsor Introduction
• 01:16 Signal 1: Tesla Launches Unsupervised Robotaxi in Miami
• 38:38 Signal 2: Waymo’s July 4th Stumble in San Francisco
• 1:11:27 Signal 3: Momenta IPOs on the Hong Kong Stock Exchange

Presented By