The move above US$400 is technically important, but I would be cautious about calling it a full restart of the autonomy story.

The bullish case is that Robotaxi has progressed from concept to real-world deployment. Markets tend to assign much higher valuations once autonomous driving demonstrates commercial execution rather than promises. If Tesla expands safely into more cities while showing improving utilisation and economics, investors may increasingly value it as an AI and mobility platform instead of only an EV maker.

The cautious case is that one launch does not prove scalability. The market will want evidence that Tesla can expand geographically, satisfy regulators, maintain a strong safety record, and generate meaningful revenue. Meanwhile, EV competition, vehicle margins, and earnings still matter.

My view is that this rebound is more than a one-day news spike, but it is not yet definitive confirmation of an autonomy-led rerating. Holding above US$400 is encouraging, yet sustained gains will likely require continued Robotaxi expansion and improving financial results. Without those, enthusiasm could fade into another trading-driven rally.