Cathie Wood Bets on Space: ARK Sells AMD and Buys $500 Million Worth of SpaceX

Sunday Brings Major Changes to the Portfolio of a Legendary Investor

While most investors spent Sunday digesting news from the Middle East and the latest swings in Bitcoin, Cathie Wood and her team at ARK Invest were hard at work. The firm released its daily trading report, and it immediately caught Wall Street’s attention.

The headline-grabbing move: ARK purchased 3,291,184 shares of SpaceX worth approximately $444.3 million. Nearly half a billion dollars invested in a single company—a company that had only recently become publicly available through an IPO after being inaccessible to most investors for years.

At the same time, ARK sold 80,536 shares of AMD worth $39.3 million. Nearly $40 million was raised by trimming a position in a chipmaker that had long been one of ARK’s favorite holdings.

What does this mean? A strategic shift. Cathie Wood, famous for her bets on disruptive innovators such as Tesla, Zoom, and Roku, appears to be making a new major wager: space. More specifically, SpaceX. And, once again, Elon Musk.

Let’s take a closer look at what may be behind these trades.

SpaceX: Why Cathie Wood Bought $444 Million Worth of Shares

Space Exploration Technologies Corp.—better known as SpaceX—is Elon Musk’s aerospace company responsible for launching rockets, delivering cargo to the International Space Station, building the Starlink satellite internet network, and pursuing the long-term goal of sending humans to Mars.

Until recently, SpaceX was a private company. Its shares were available primarily to venture capital firms, institutional investors, and employees through specialized programs. Retail investors had little or no access.

Last week, however, SpaceX reportedly completed an initial public offering (IPO), listing under the ticker SPCX with a valuation of roughly $250 billion. That valuation would make it one of the most valuable publicly traded companies in the world, behind only a handful of giants such as Apple, Microsoft, NVIDIA, and possibly Saudi Aramco.

For Cathie Wood, who has built her reputation by investing early in transformational companies, this was an opportunity difficult to ignore. A $444 million purchase signals that ARK sees SpaceX not merely as another aerospace company, but as a long-term secular growth story comparable to electric vehicles or artificial intelligence.

Why SpaceX?

The reasons are fairly straightforward:

• SpaceX dominates the commercial launch market.

• Falcon 9 and Falcon Heavy are among the most reliable and cost-effective rockets available.

• Starlink already generates billions in revenue and continues to expand globally.

• Starship promises to dramatically reduce the cost of transporting payloads into orbit.

• Musk’s vision of Mars colonization, while still distant, continues to attract investors willing to think decades ahead.

Cathie Wood is known for her long-term investment horizon. She typically invests with a five- to ten-year outlook rather than trading around short-term headlines. This SpaceX purchase may reflect exactly that philosophy.

AMD: Why ARK Is Selling Chips

For AMD investors, the news is less encouraging. ARK sold 80,536 shares worth $39.3 million, continuing a broader trend of reducing exposure to the semiconductor company.

Why sell AMD now?

After all, AMD has been one of the major beneficiaries of the AI boom. Its EPYC processors and Instinct accelerators compete directly with NVIDIA products and have enjoyed rising demand. AMD shares have multiplied several times over the past few years.

Still, ARK may believe much of that upside is already reflected in the stock price.

Several factors could be influencing the decision:

• Competition with NVIDIA continues to intensify.

• Intel is attempting a comeback with new product launches.

• Chinese semiconductor companies such as Huawei, Cambricon, and Iluvatar are becoming more competitive.

• AMD’s valuation remains elevated, with investors pricing in strong future growth.

If growth slows even modestly, the stock could face pressure. Wood may simply be taking profits and reallocating capital toward an opportunity she views as having greater upside potential.

Other Sales: Roku, Tesla, and Baidu

AMD was not the only position ARK reduced.

Roku

ARK sold 98,835 Roku shares worth approximately $11.8 million.

Once a flagship ARK holding, Roku now faces growing competition from Amazon Fire TV, Apple TV, and smart TVs with built-in streaming capabilities. ARK may believe the company’s high-growth phase is behind it.

Tesla

ARK also sold 39,850 Tesla shares worth about $15.9 million.

While the amount is relatively small compared with ARK’s overall Tesla position, the move is symbolically significant. Wood has long been one of Tesla’s strongest supporters.

The most likely explanation is portfolio management. When a position becomes too large—Tesla has at times represented 10–15% of some ARK ETFs—selling a small portion can help fund new opportunities such as SpaceX while maintaining diversification.

Baidu

ARK sold 67,420 Baidu shares worth approximately $7.8 million.

Despite Baidu’s investments in artificial intelligence, ARK may be concerned about geopolitical risks or slowing growth prospects in China’s technology sector.

Cloudflare

The firm also sold 11,089 Cloudflare shares worth about $2.5 million.

Although relatively minor, the sale suggests ARK is trimming exposure across several technology segments as it reallocates capital elsewhere.

Strata Critical Medical: Reducing Healthcare Exposure

ARK sold 475,448 shares of Strata Critical Medical Inc. (SRTA) worth approximately $2.6 million.

Healthcare innovation has long been one of ARK’s core investment themes, particularly during and after the pandemic. However, as healthcare demand normalizes, ARK may be reassessing the risk-reward profile of certain medical holdings.

The Bigger Picture: A Strategic Rotation

Taken together, these trades suggest a broader portfolio shift.

ARK is making a substantial bet on space exploration and commercialization through SpaceX while reducing exposure to:

• Semiconductors (AMD)

• Streaming media (Roku)

• Electric vehicles (Tesla, modestly)

• Chinese technology (Baidu)

• Cybersecurity and internet infrastructure (Cloudflare)

This does not appear to be a panic-driven move. Rather, it looks like a deliberate portfolio rebalancing—selling some assets to increase exposure to what ARK believes could be the next major technological megatrend.

Why Investors Should Pay Attention

Even investors who do not own ARK funds often watch Cathie Wood closely.

Her track record is mixed, but she has demonstrated an ability to identify disruptive trends before they become mainstream. If ARK is allocating nearly half a billion dollars to SpaceX, it suggests the firm sees opportunities that may not yet be fully appreciated by the broader market.

The thesis likely extends beyond rocket launches alone. Starlink could become a dominant global communications platform, while SpaceX’s launch business continues to strengthen its competitive moat.

Similarly, ARK’s reduction of AMD exposure may reflect a belief that the semiconductor industry is entering a more mature phase of the AI cycle, or that future returns may be less compelling than investors currently expect.

Not Everyone Agrees with Cathie Wood

Cathie Wood remains a polarizing figure.

Critics argue that her funds are overly concentrated, heavily dependent on growth stocks, and vulnerable to rising interest rates. They point out that ARK funds have experienced significant volatility over the years, with periods of exceptional gains followed by steep declines.

From this perspective, investing nearly $500 million in SpaceX represents another bold, high-conviction wager. Whether it proves visionary or premature remains to be seen.

What Comes Next?

As a newly public company, SpaceX may experience significant volatility as the market determines an appropriate valuation.

ARK’s willingness to commit $444 million suggests confidence in the company’s long-term prospects and a willingness to tolerate short-term fluctuations.

Meanwhile, AMD remains a fundamentally strong business. ARK’s decision to reduce its position does not necessarily imply a negative outlook on the company. Rather, it suggests that ARK sees greater opportunity elsewhere.

For investors, the key takeaway is that portfolio reallocations often reflect relative opportunity rather than outright pessimism.

Conclusion: The Space Era Begins?

Cathie Wood has made her move.

Nearly $500 million invested in SpaceX. Roughly $40 million raised from selling AMD. A clear shift toward space and away from several traditional technology themes.

This is not a guarantee of success—but it is a signal.

Space is no longer science fiction. It is an increasingly important commercial industry with real revenue streams, growing demand, and transformative potential. SpaceX dominates launch services, Starlink continues to expand, and Starship could reshape the economics of space transportation.

Cathie Wood famously boarded the Tesla train early. Now she appears to be boarding the SpaceX rocket.

Whether that rocket ultimately reaches Mars—or encounters turbulence along the way—will become clear in the years ahead.

For now, the trades are done, the report is published, and investors are watching closely. In investing, as in space exploration, sometimes reaching the stars requires taking risks. Or at least aiming for the Moon first.