Why Tesla Stock Plunged 26% in July

Tesla shares crashed 26% in July 2026, marking the electric vehicle maker's worst monthly performance in more than three years. The selloff reflects mounting investor anxiety over stalled progress in autonomous driving technology and a sharp deterioration in the company's bottom line.

Net income has plummeted 64% over the past three years even as revenue climbed 8%, highlighting margin pressure in Tesla's core EV business. The disconnect underscores why the stock now commands a 150-200x forward earnings multiple—a valuation that prices in massive future contributions from robotaxi and humanoid robot ventures rather than current automotive operations.

The steep decline puts Tesla's valuation firmly in the speculative category, with profitability metrics moving in the wrong direction while the company's long-promised autonomous driving breakthroughs remain elusive. Investors are effectively betting on unproven businesses to justify current prices, with legacy EV sales unable to support the premium.