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Cathie Wood-led ARK Invest bought about $149 million worth of Nvidia (NVDA), Broadcom (AVGO), CoreWeave (CRWV), Tesla (TSLA) and SpaceX (SPCX) shares on Tuesday, September 29. The purchases came as Nvidia expanded its buyback plan, Tesla secured $30 billion in new credit facilities, and SpaceX reached orbit for the first time with its Starship rocket.

ARK Adds to 5 Tech Favorites – NVDA, AVGO, CRWV, TSLA and SPCX

1. Cathie Wood Buys $81.6M of Nvidia Stock

ARK's largest purchase was Nvidia, with the fund adding 356,681 shares worth about $81.6 million across its ETFs.

The purchase came shortly after Nvidia announced a major expansion of its share-buyback program. On September 28, the company authorized an additional $150 billion for stock repurchases, lifting its remaining authorization to $235 billion through fiscal 2028. Nvidia said it was the largest increase in a repurchase authorization in history.

Nvidia CEO Jensen Huang said the company's cash generation gives it room to keep investing in AI while returning capital to shareholders.

2. ARK Adds $26.7M of Broadcom Stock

ARK also bought 76,263 Broadcom shares worth about $26.7 million on Tuesday.

Broadcom has continued to benefit from large AI infrastructure commitments. A recent Anthropic filing showed the AI company has about $161.2 billion in non-cancelable lease obligations tied to Broadcom. Anthropic also expects to spend at least $518 billion on AI infrastructure over the next decade.

The filing shows how much planned AI spending is tied to Broadcom's custom chips and networking products. Those products are used in large data-center deployments.

3. Wood Buys $21.7M of CoreWeave Stock

ARK bought 254,550 CoreWeave shares worth about $21.7 million on Tuesday. The buy came as CoreWeave hosted its Fully Connected 2026 conference from September 29 to October 1. The event focuses on infrastructure for AI training, inference and agentic workloads.

CoreWeave CEO Mike Intrator also discussed how lower AI costs could expand demand for computing infrastructure. The company is using the event to showcase its AI cloud platform and infrastructure tools.

4. ARK Buys $17.3M of Tesla Stock

ARK bought 48,352 Tesla shares worth about $17.3 million through its ARK Innovation ETF (ARKK). The purchase came as Tesla stock remained under pressure. Tesla fell 1.29% on Tuesday and is down 21.54% year-to-date.

Tesla also disclosed $30 billion in new credit agreements on Tuesday. The package includes a $20 billion delayed-draw term loan, an $8 billion revolving credit facility and a $2 billion short-term facility.

Tesla said much of its planned spending will go toward AI computing infrastructure, solar manufacturing capacity and a semiconductor project with SpaceX.

5. Cathie Wood Adds $1.3M of SpaceX Stock

ARK also bought 9,112 SpaceX shares worth about $1.3 million on Tuesday.

The purchase came just one day after SpaceX's Starship reached orbit for the first time. The rocket also deployed 26 Starlink V3 satellites during the mission. The flight ended earlier than planned after one engine shut down, but the company still reached the main orbital milestone.

Following Starship's first orbital flight, several analysts maintained their Buy ratings on the stock. For instance, Clear Street analyst Brian Dobson reiterated a Buy rating and a $217 price target, implying about 47% upside. He said the successful flight could support Starlink's next phase of growth.

Meanwhile, William Blair analyst Louis DiPalma reiterated an Outperform rating on SpaceX. He expects Starship's larger capacity to support bigger Starlink launches and also pointed to SpaceX's growing AI business.

Which Stock Offers the Most Upside?

According to the TipRanks Stock Comparison Tool, CoreWeave offers the most upside at 66.52%, followed by SpaceX at 56.19% and Broadcom at 46.22%. Nvidia and Tesla have 42.74% and 10.93% upside, respectively.