Tesla stock suffers double-digit drop, contributing to Wall Street's downward trend.

Tesla stock experienced a significant double-digit decline on July 23, 2026, marking one of its worst trading days in years. The shares tumbled by approximately 12% to 14.5%, wiping out over $140 billion in market value following the release of the company's second-quarter earnings report. This sharp sell-off was primarily driven by Tesla missing Wall Street's profit expectations, a substantial drop in operating income, and negative free cash flow for the first time in several years.

Investors reacted negatively to increased capital expenditures, which surged 142% to nearly $5.8 billion, as the electric vehicle maker accelerated investments in ambitious artificial intelligence and robotics projects like Robotaxi and Optimus humanoid robots. CEO Elon Musk reiterated that 2026 would be a "massive capex year," further fueling concerns about near-term profitability despite record revenue and vehicle deliveries.

The decline in Tesla's stock, alongside similar concerns over increased AI spending from other major tech firms, contributed to a broader downward trend on Wall Street. Google parent company, Alphabet, also saw its shares fall by nearly 7% after raising its capital expenditure forecast for AI infrastructure, leading to broader market losses across the S&P 500, Dow Jones Industrial Average, and Nasdaq Composite. Rising oil prices further exacerbated the market's anxious sentiment.