Short sellers have made $11.5 billion in mark-to-market profits so far in Tesla’s terrible 2025, according to CNBC, citing S3 Partners. That’s more than double the $5.3 billion short sellers booked in all of 2024 on Tesla, whose stock is down about 40% this year and which reports earnings after the bell today. This year’s short-seller gains are an about-face from $12 billion in mark-to-market losses short sellers incurred in 2023 on the oft-shorted stock.
Tesla’s China sales grew 43% to 38,206 vehicles in February, compared a low baseline a year earlier.
Still, thanks to strong sales of its Model Y, Tesla defied countrywide trends — overall China EV sales fell 35% last month.
As a result, Tesla’s market share in China, its second-biggest market, grew to nearly 14% — its highest level in nearly two years.
Nvidia is planning on spending $26 billion to train its own AI open-weight models, according to a 2025 financial filing. Wired was first to report the information. Nvidia has released several of its own AI models, including the Nemotron reasoning model, as well as specialized ones for specific tasks.
Nvidia making its own large frontier models could allow the company to go head-to-head against some of its biggest AI customers.
Tesla and SpaceX CEO Elon Musk said Wednesday that Tesla and xAI, which is part of SpaceX, would work on a joint AI agent project called “Macrohard,” also referred to as “Digital Optimus,” as part of Tesla’s $2 billion investment in xAI. The collaboration would pair Grok with what Musk described as a real-time computer-controlling AI agent running on Tesla hardware.
In his post, Musk said Grok would serve as the higher-level “System 2” reasoning layer directing “Digital Optimus,” a faster “System 1” layer that processes the last five seconds of screen video and keyboard/mouse inputs to take action. He said the system would run inexpensively on Tesla’s low-cost AI4 chip alongside more expensive Nvidia chips at xAI, and suggested it could, “in principle,” emulate the function of entire companies. “No other company can yet do this,” he said.
Macrohard or Digital Optimus is a joint xAI-Tesla project, coming as part of Tesla’s investment agreement with xAI.
— Elon Musk (@elonmusk) March 11, 2026
Grok is the master conductor/navigator with deep understanding of the world to direct digital Optimus, which is processing and actioning the past 5 secs of…
Business Insider reported earlier Wednesday that Tesla was taking up the AI agent mantle as xAI’s similar project stalled, but Musk’s post suggests the initiatives are more intertwined than previously understood.
The collaboration marks the latest example of Musk’s companies working closely together, further blurring the lines between Tesla and the recently merged SpaceX-xAI entity.
