Cathie Wood Just Bought 705,102 Shares of a Rocket Company 50 Times Smaller Than SpaceX

ARK Invest just loaded up on a rocket company trading at a fraction of SpaceX's valuation, and the timing raises a pointed question about whether the recent selloff is a warning sign or a once-in-a-cycle entry point.

Published September 4, 2026, 10:00am ET · 3 min read

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Cathie Wood
MIAMI, FLORIDA - APRIL 7: Cathie Wood, chief executive officer and chief investment officer, Ark Invest, gestures as she speaks during the Bitcoin 2022 Conference at Miami Beach Convention Center on April 7, 2022 in Miami, Florida. The world's largest bitcoin conference runs from April 6-9, expecting over 30,000 people in attendance and over 7 million live stream viewers worldwide.(Photo by Marco Bello/Getty Images) © Marco Bello/Getty Images

Cathie Wood’s ARK Invest scooped up 705,102 shares of Rocket Lab (NASDAQ:RKLB | RKLB Price Prediction) across two trading sessions, according to TipRanks’ reporting on the firm’s daily fund disclosures. The buying came as the stock extended a losing streak, with shares slipping 5.51% over the past week and trading at $63.57 in Friday’s session. The purchase suggests ARK views the pullback as an entry point into a name it has long positioned as a core space-economy holding, even as it trimmed positions elsewhere in its book, including Advanced Micro Devices (NASDAQ:AMD).

A $38 Billion Company Versus a Trillion-Dollar Rival

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RKLB price target

The size gap frames the scale of the bet. SpaceX carried a market capitalization of roughly $1.14 trillion as of September 4, 2026, according to Google Finance. Rocket Lab’s market capitalization stood at roughly $38.04 billion as of the same date. The publicly traded pure-play alternative for space-launch exposure remains a fraction of the private launch giant, whose recent IPO reset investor expectations for the sector. Investors seeking direct SpaceX exposure have gravitated to fund vehicles such as the Destiny Tech100 SpaceX proxy (NASDAQ:SPCX), which has gained 19.48% over the past month.

Why Rocket Lab Is SpaceX’s Closest Public Rival

Rocket Lab’s Electron rocket has flown 13 launches this year with 100% mission success, serving the small-satellite market. Its medium-lift Neutron rocket, designed to compete more directly with SpaceX’s Falcon 9, is targeting delivery to the pad in Q4 2026, though it has not yet flown. Cantor Fitzgerald has characterized Rocket Lab as the premier alternative to SpaceX. The operational gap remains vast: SpaceX said it delivered roughly 2,500 tons a year to orbit via Falcon and accounts for 80 to 90% of total Earth mass to orbit per year.

More Than a Launch Company

Space Systems drives the majority of Rocket Lab’s business, outpacing launch. In Q2 2026, Space Systems revenue reached $189.5 million, while Launch Services revenue was $44.6 million. Rocket Lab has stacked acquisitions to widen the moat, closing deals for Mynaric, Motiv, and an announced deal for Iridium Communications. Iridium, if closed, brings a constellation of 66 satellites and more than 2.5 million subscribers, positioning Rocket Lab to build, launch and operate its own constellations. The company posted $234.07 million in Q2 revenue, up 61.99% year over year, with backlog reaching $2.36 billion. Details are available in the company’s Q2 2026 earnings exhibit filed with the SEC.

RKLB earnings explorer

Recent Decline in Context

Rocket Lab is down 14.33% over the past month and 8.53% year to date. The one-year picture looks different: shares are up 46.59%, and up 371.97% over five years. ARK’s buying into the recent weakness fits a pattern of adding to conviction names when short-term sentiment softens. CEO Peter Beck framed the quarter this way: “Q2 was another fantastic quarter for Rocket Lab, highlighted by record results and massive momentum that has continued well after the close.”

What Has to Go Right

Management guided Q3 revenue to $250M-$265M, and expects roughly 45.5% of current backlog to convert into revenue within the next twelve months. For the bull case to work, Neutron has to fly, and the backlog has to convert. Beck told analysts that the quarter after Neutron’s first successful test launch would mark the pivot toward positive cash flow, with cash-flow positivity expected 18 to 24 months after that pivot. Wood’s purchase places ARK on that timeline. Keep an eye on the stock as the launch window narrows into year-end.

RKLB price scenario

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AJ Tiarsmith

AJ has spent the past 10 years writing about financial markets at The Motley Fool. His coverage centers on technology stocks and the broader macroeconomic trends, from interest rates to geopolitics,  that shape where markets are headed next. AJ is drawn to the stories where big-picture economics and individual companies collide.

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