← All summaries

The Newest Big Idea from Elon Musk: Terafab

Motley Fool Money · John Quas — Matt Frankel, Rachel Warren · March 23, 2026

Most important take away

Elon Musk announced Terafab, a $25 billion joint venture between Tesla, SpaceX, and xAI to build a vertically integrated semiconductor factory producing one terawatt of AI computing power annually. Meanwhile, markets surged on news of a potential five-day pause in strikes on Iranian energy infrastructure, though the situation remains fragile and investors should treat daily volatility as noise rather than signal.

Summary

Stocks and Investments Mentioned:

  • Tesla (TSLA) — Core partner in the $25B Terafab joint venture. Musk claims all current global chip makers combined can only supply about 2% of the compute capacity his companies will eventually need.
  • SpaceX (private) — 80% of Terafab’s output is earmarked for space-based AI satellite applications.
  • xAI (private) — Third partner in the Terafab venture.
  • IBM — Matt Frankel’s pick as an early quantum computing play. He notes IBM is furthest along in developing viable quantum computing hardware and has consistently met development milestones ahead of schedule.
  • Intuitive Surgical — Leading player in surgical robotics/physical AI in healthcare, already used in millions of robotic-assisted procedures.
  • Neutronic and Johnson & Johnson — Additional companies to watch in the surgical robotics and physical AI healthcare space.
  • Occidental Petroleum — Mentioned as retreating on the Iran de-escalation news.
  • Chevron, Exxon — Referenced as examples of well-run oil businesses that remain unpredictable due to geopolitical and weather factors.

Actionable Insights:

  • Treat daily market volatility as noise, not signal. The whipsaw moves from geopolitical headlines rarely change the long-term trajectory of quality companies. Focus on the foundation of your portfolio (diversified quality assets) rather than reacting to each headline.
  • Use volatility as an opportunity. Market pullbacks can be a chance to rebalance and buy quality companies at a discount. The goal is time in the market, not timing the market.
  • Be cautious with energy stocks. Oil prices are driven by factors entirely outside company control (war, weather, geopolitics). If you own energy stocks, be prepared for outsized swings. The hosts generally avoid the sector for this reason.
  • Watch secular growth trends for long-term wealth creation. Invest in fundamental shifts in technology or human behavior that will last a decade or more: AI, quantum computing, physical AI/robotics in healthcare, renewable energy, and domestic manufacturing.
  • On Terafab, take Musk’s promises with a grain of salt. He historically delivers 80-90% of what he promises. Semiconductor manufacturing is vastly more complex than building cars or rockets and requires atomic-level precision. The 4680 battery cell delays are cited as a cautionary example.
  • Quantum computing is worth watching but may be premature to invest in. IBM is suggested as the gauge for when the space reaches commercial viability, with a roughly 10-year window for a potential inflection point.

Chapter Summaries

Iran De-escalation and Market Reaction

President Trump announced productive talks with Iran and a five-day pause on strikes against Iranian energy infrastructure. Markets surged (Dow up 800+ points), Brent crude plunged double digits, and airline/cruise stocks rallied while energy stocks retreated. However, Iran denied any talks took place, the war is still ongoing, and the hosts caution this is far from over. They advise investors to treat these swings as temporary noise and focus on long-term portfolio quality.

Elon Musk’s Terafab Announcement

Musk unveiled Terafab, a $25 billion joint venture between Tesla, SpaceX, and xAI to build a vertically integrated semiconductor factory producing one terawatt of AI computing power per year. The factory would handle chip design, lithography, fabrication, and packaging under one roof. 80% of output is earmarked for orbital AI satellites. Critics note semiconductor manufacturing is vastly more complex than anything Musk’s companies have done, but his track record of delivering on ambitious projects lends some credibility.

The team discussed investing in long-term mega trends. Matt Frankel highlighted quantum computing, with IBM as his early-stage pick. Rachel Warren focused on physical AI in healthcare, particularly surgical robotics companies like Intuitive Surgical, Neutronic, and Johnson & Johnson. John Quas mentioned domestic manufacturing as an appealing trend. The key principle: investing in secular growth trends provides a tailwind that can carry companies forward regardless of broader economic conditions.