Tesla Semi Hits High-Volume Production as Sparks Factory Opening Set for Sept. 24; TSLA Fell 5.9% After Cybercab Event

Tesla's electric Semi truck program has crossed a long-awaited manufacturing threshold, with the company confirming that the first Semi truck rolled off a high-volume production line at Gigafactory Nevada, moving the program from pilot builds toward scaled manufacturing, according to an April 30 report from Stocktwits. Tesla will open its dedicated Semi factory in Sparks, Nevada, on Sept. 24, according to invitations it sent to guests, as reported by Yellow.com. Separately, Tesla shares closed at $354.08 on Friday, Sept. 4, down 5.92%, after the company's Cybercab launch event in Austin disappointed Wall Street, per AOL and Yahoo Finance.

Sparks Factory Ramps Toward Full-Scale Capacity

Tesla said on its Tesla Semi account on X that the “first Semi off high volume line” has now been produced, Stocktwits reported, a step that moves the long-delayed electric trucking program from pilot builds toward volume manufacturing. Early trucks were assembled on a pilot line while Tesla refined the platform and built a dedicated 1.7-million-square-foot facility adjacent to Gigafactory Nevada that, according to the same report, will eventually produce up to 50,000 trucks annually once fully ramped.

The Semi was first unveiled in 2017 and saw multiple production delays before limited early deliveries began in late 2022, per Stocktwits. Tesla offers the truck in two configurations — a standard-range version rated at 325 miles at full load and a long-range version rated at 500 miles — on an 800-kW tri-motor drivetrain producing more than 1,000 horsepower, the report said. The standard-range rating is 175 miles below the long-range version (325 - 500), or about 35% lower ((325 - 500) / 500 × 100).

The initial market response to the milestone was muted: Stocktwits reported that TSLA slipped 0.3% in premarket trading on the day of the confirmation, after falling nearly 1% the prior session, as investors weighed the milestone against fresh signs of slowing momentum in China.

Cybercab Event Leaves Analysts Wanting Details

The Semi news has been overshadowed by the reaction to Tesla's Cybercab launch event in Austin. Shares closed at $354.08 on Friday, Sept. 4, down 5.92%, according to AOL, after the rollout event disappointed Wall Street, Yahoo Finance reported. The selloff erased the prior session's 5.4% pre-event gain, per Yahoo Finance, and Morningstar noted that with shares up 5% on Sept. 3 heading into the evening event, some of the decline may have reflected profit-taking. Trading volume reached 64.4 million shares, about 53% above the three-month average of 42.1 million, per AOL ((64.4 - 42.1) / 42.1 × 100).

The event was invite-only and was not livestreamed, and CEO Elon Musk did not appear — a break from Tesla's usual product launches — according to AOL and to Yahoo Finance, citing CNBC. Details on how many Cybercabs would be deployed and where were not provided, leaving analysts with little incremental information, AOL reported. RBC Capital analysts, who still recommend buying the stock, said the event offered little new information on pricing, production timelines or regulatory approval, per CNBC as cited by Yahoo Finance. Wells Fargo analysts titled their note “TSLA Cybercab Launch Event Underwhelms,” pointing to early problems with the Austin robotaxi service including rider complaints about wrong routes, missed stops and long wait times, CNBC noted. Morningstar attributed the market reaction to the absence of management guidance such as a Cybercab production timeline or target production costs, while maintaining its $450-per-share fair value estimate.

Hours after the event, the National Highway Traffic Safety Administration opened a formal audit query covering close to 1,000 vehicles into whether Tesla correctly self-certified that the pedal- and steering-wheel-free Cybercab meets federal safety standards, according to Yahoo Finance and AOL. As of Friday morning, Tesla had 420 autonomous vehicles registered in Texas, including 45 Cybercabs, per Yahoo Finance. The company runs its robotaxi service in six cities across Texas and Florida plus supervised trips in San Francisco, according to Yellow.com, and Cybercab production began in the second quarter at Gigafactory Texas with output expected to grow sharply later this year, Yahoo Finance reported.

Analysts Question Whether New Hardware Shifts Sentiment

Morgan Stanley analyst Andrew Percoco estimates Semi trucks could generate $17 billion in software revenue by 2040, Yellow.com reported, though analysts quoted by the outlet doubt new hardware will move sentiment. CFRA's Garrett Nelson said he was skeptical the Semi or Roadster would lift investor enthusiasm, while Morningstar's Seth Goldstein said sentiment depends on robotaxi expansion, tangible progress with Optimus humanoid robots and better free cash flow. Goldman Sachs analyst Mark Delaney cut his third-quarter delivery forecast to 435,000 vehicles from 490,000, below the 456,000 consensus, and Wall Street expects negative free cash flow of $9.7 billion this year, according to FactSet data cited by Yellow.com.

The financial backdrop remains mixed. Tesla's second-quarter adjusted net income of roughly $1.1 billion missed the roughly $1.9 billion Wall Street expected — a shortfall of about $0.8 billion, or roughly 42% ((1.1 - 1.9) / 1.9 × 100) — despite 26% revenue growth to $28.2 billion, Silicon Republic reported. In China, first-quarter deliveries totaled 112,798 vehicles, down 16.20% from a year earlier, and a Goldman Sachs research note cited by Stocktwits found Tesla's order activity flat while launches under Huawei's Harmony Intelligent Mobility Alliance drove new energy vehicle order growth. Tesla stock has slipped about 18% so far this year while the S&P 500 has gained 11%, per Yellow.com — a 7-percentage-point gap (18 - 11).

Bottom Line

Interpretation of the cited reporting: the high-volume Semi line and the Sept. 24 Sparks plant opening give Tesla a second hardware ramp, but the analyst commentary on record suggests near-term sentiment hinges on robotaxi and software execution rather than truck volumes. RBC and Wells Fargo both flagged missing Cybercab specifics, Morningstar tied sentiment to robotaxi expansion, Optimus progress and free cash flow, and Goldman's reduced delivery forecast alongside the $9.7 billion negative free cash flow estimate cited by Yellow.com frames the spending question. This is analysis of the sources above, not a forecast or investment advice.