Tesla has redesigned its AI5 chip to use 96GB of RAM instead of the originally planned 144GB, a reduction of one-third. Elon Musk stated this was "the only way to get enough volume for Optimus production" and reduces costs. The redesign indicates the memory shortage has spread beyond data centres into robotics. Micron Technology's chief financial officer Mark Murphy said he has "no line of sight" for when the current memory shortage will ease. Micron's gross margin increased from 2.7% in fiscal 2023 to 80.7% in fiscal 2026. Consensus from 35 analysts expects Micron's revenue to reach approximately $275 billion in fiscal 2027, up from $133 billion in fiscal 2026. The main risk is that other chip designers may follow Tesla's example and find they need less memory than anticipated.

Tesla has rescheduled its long-awaited Roadster reveal to 15 October, moving from the original 1 October date due to weather concerns. The event must be held outdoors, likely to accommodate SpaceX thruster demonstrations. The supercar was first announced in 2017 with a promised launch "a few years away". Tesla collected $50,000 deposits from buyers, with the vehicle priced at around $200,000. Production could take a year or longer after the reveal. The Roadster is unlikely to significantly impact Tesla's revenue. The company delivered 480,126 vehicles in Q2, up 25% year-over-year, generating $28.2 billion in revenue. However, operating income fell 57% to $398 million. Tesla is investing heavily in AI and other projects, with capital expenditures more than doubling to $5.8 billion in Q2.

Tesla shares climbed 4.65% to $370.59 after reporting third-quarter deliveries of 486,532 vehicles, beating Wall Street estimates by approximately 25,000 units. Trading volume reached 53.9 million shares, 39% above the three-month average. The Model 3 and Y accounted for 478,237 deliveries. The strong performance came despite federal EV tax credits expiring in September 2025. The S&P 500 rose 0.74% whilst the Nasdaq Composite gained 1.19%. Rivals Rivian and Lucid declined 3.12% and 1.43% respectively, though Rivian also reported record quarterly deliveries. Investors are now focused on Tesla's upcoming October earnings report and whether the delivery momentum translates into strong revenue guidance.