Tesla Stock Plummets 18% After Q2 Earnings Miss and Surging Capex Raises Investor Concerns

Tesla (NASDAQ: TSLA) stock suffered a sharp decline last week, sliding approximately 17.8% in its worst weekly performance since early 2025, following its Q2 earnings release on July 22. The sell-off was driven by a notable miss on adjusted EPS and alarmingly high capital expenditure, triggering renewed investor scrutiny of Tesla’s margin pressure and aggressive investment strategy.

Q2 Earnings Disappoint Amid Revenue Strength

For the second quarter, Tesla reported adjusted earnings per share of $0.33, well below the $0.50 consensus estimate, despite delivering record revenue of $28.24 billion. Revenue growth of 26% year-over-year was accompanied by a substantial drop in profitability, with operating income plunging 57% and operating margins dropping to 1.4%, against 4.1% a year earlier. Gross margin also compressed to 16.8%, missing the 19.4% expectation. The company’s capital expenditures more than doubled, pushing free cash flow into negative territory at approximately $1.09 billion and prompting a full-year capex outlook above $25 billion. These figures combined to unsettle investors and contribute to the steep stock decline. (All figures from Tesla’s shareholder letter and associated reporting.)

Market Reaction: A Broad Sell-Off in Growth Names

The Tesla earnings miss acted as a catalyst for broader technology sector weakness. Tesla became the single-largest drag on both the S&P 500 and Nasdaq 100 during the week, subtracting over 23 points from the S&P 500 and nearly 95 points from the Nasdaq 100. The steep move reflected concerns not just about Tesla’s outlook, but also growing skepticism toward AI‑heavy, capital‑intensive growth stocks. (Weekly index impact data.)

Investor Outlook and Risks Ahead

Investors are now closely watching whether Tesla’s heavy spending will translate into future returns, particularly in its AI, robotics, and autonomous vehicle initiatives, including the Cybercab and Semi, whose volume production timelines were pushed beyond 2026. The pressure on margins and ongoing negative free cash flow raise questions about how soon Tesla can return to sustainable profitability. Market participants will be monitoring upcoming developments in product rollouts, cost control measures, and delivery momentum.

Stock data note: Tesla trades at $352.84 as of September 29, 2026, representing a –1.56% movement on that day. This figure reflects intraday performance and is separate from last week’s dramatic weekly decline.