In a single quarterly filing, D.E. Shaw & Co. disclosed a brand-new position in SpaceX worth $912.4 million and a 58% reduction in its stake in Broadcom Inc., two moves that sketch how the quantitative giant is repositioning itself across the AI trade. The Form 13F-HR, filed Aug. 14 for the period ending June 30, shows the firm buying the most prominent company to go public this year while trimming one of the biggest suppliers of AI networking chips.
The SpaceX stake is the notable part. D.E. Shaw reported 5.34 million shares of the rocket and satellite company, valued at $912.4 million, representing about 0.43% of the firm’s portfolio. It is a first-time entry: SpaceX completed its initial public offering in June, making this the first quarter in which the firm could report a position. For a stock with little institutional disclosure history yet, the filing makes D.E. Shaw one of the largest identifiable holders.
The Broadcom cut is nearly as striking. D.E. Shaw reduced its holding by 58.3%, to 2.72 million shares worth about $1.03 billion at quarter end. The firm did not exit the position — it still owns more than a billion dollars of the chip maker — but the reduction is the kind of move that stands out in a book of this size. Broadcom has been one of the defining AI winners, supplying the custom accelerators and networking silicon that underpin the buildout.
The two positions should be read as parallel data points rather than a single linked trade, according to people familiar with the firm’s approach. D.E. Shaw is a quantitative, systematic, multi-strategy firm, and its 13F aggregates positions across hundreds of portfolios with different mandates. The same filing shows puts on Microsoft Corp. worth about $539 million, a hedge that cuts against the long exposure elsewhere in the book. One filing, many strategies.
The broader picture is visible in the numbers. The firm’s 13F lists 4,833 positions, of which 977 are new, 1,734 were added to, 1,595 were trimmed and 614 were exited during the quarter. A portfolio that large rotates constantly, and any single line item carries limited signal. But the SpaceX entry and the Broadcom trim, in the same quarter that the AI chip trade wobbled and the space economy went public, have drawn attention because of what they say about the direction of institutional money.
SpaceX’s public debut changed the investing picture for the space industry. The company, founded by Elon Musk in 2002, built its business on reusable rockets, a Starlink satellite constellation with tens of millions of subscribers, and a valuation that made it one of the largest companies in the world before it ever traded. Its June listing gave institutional investors their first liquid way to own the space economy, and the first round of 13F filings — D.E. Shaw’s among them — provides the earliest map of who bought.
The Broadcom reduction came before a wave of company-specific news in August, including concerns about competitive pressure from Google’s expanded partnership with Marvell Technology Inc. and Broadcom’s own debt-financing activity. That timing matters: D.E. Shaw’s positions reflect June 30, more than six weeks before the filing became public, so the trim was made before those headlines, not in response to them. The firm was positioning on its own schedule.
Analysts caution against reading too much conviction into either position. A 13F is a lagging snapshot, reported roughly 45 days after quarter end, and the positions may have changed substantially since June 30. New listings, in particular, are subject to lock-up rules that can force different behavior from other holdings. The filing tells investors what the firm owned, not what it thinks today.
Even with those caveats, the rotation is consistent with how large systematic funds have been handling the AI trade in 2026. After two years of concentrated bets on the direct AI suppliers — Nvidia, Broadcom, the memory makers — portfolios have begun to broaden. Some of that money is moving to companies that use AI rather than sell it; some is moving to adjacent infrastructure like power, data centers and, now, space. SpaceX’s Starlink, which carries a growing share of the world’s data traffic, sits at the intersection of those themes.
For SpaceX, the institutional validation matters. As of late August, D.E. Shaw’s position stood out as the most significant institutional disclosure in the stock, and its size — near the top of any 13F reporting for the newly public company — gives other investors a reference point. For Broadcom, the trim adds to a mixed picture: the company remains profitable and dominant, but its stock has become more volatile as investors weigh the pace of custom silicon orders against rising competition and a large debt load.
The filing shows that even the most systematic investors make directional choices. D.E. Shaw’s book is built to be indifferent to individual stocks, yet the sum of its decisions in the second quarter tilted away from one AI winner and toward a different kind of winner entirely. The firm will file again in November, and the third-quarter snapshot will show whether the June positions were the beginning of a shift or a one-quarter adjustment.
