Alphabet has disclosed a new shareholding in Qualcomm, revealing in a regulatory filing that it owned about 2.977 million shares of the chipmaker at the end of the third quarter of 2026. The position was valued at roughly $548 million at the time.
The stake did not appear in Alphabet's filing for the end of June, indicating it was built up between July and September. Qualcomm's stock climbed more than 3% at one point in after-hours trading once the disclosure became public, according to a report by BigGo Finance.
A New Position Revealed Through SEC Filings
The holding surfaced in Alphabet's quarterly submission to the U.S. Securities and Exchange Commission, the type of 13F report that lists securities an institution holds at quarter end.
Many market observers read the investment as a meeting of interests. Qualcomm wants to reduce its dependence on smartphone chips, while Alphabet needs ever more computing capacity to keep up with growing AI demand.
Why Qualcomm Is Betting on Data Centers
Qualcomm has long relied on Snapdragon mobile processors and patent licensing for its earnings. A maturing smartphone market and Apple's move to design its own baseband chips have made that model look less secure over the long run.
In its fiscal 2026 fourth quarter, smartphone chip revenue dropped about 26% from a year earlier to $5.14 billion. Chief executive Cristiano Amon has reiterated a goal of $5 billion in data center revenue in fiscal 2027, rising to more than $15 billion by fiscal 2029.
To get there, the company introduced its Dragonwing data center lineup in June 2026, pairing the C1000 CPU with the AI300 inference accelerator and high-bandwidth computing technology. The pitch is an integrated package of processors, accelerators, memory and interconnects aimed at customers focused on power and cost efficiency for inference rather than general-purpose GPUs.
The Modular Connection
Qualcomm has also acquired AI software startup Modular, maker of the Mojo programming language and the MAX inference platform, to address software compatibility across chip architectures and ease adoption of its hardware.
That deal may help explain Alphabet's stake. The Information reported that GV, Alphabet's venture arm, was an investor in Modular, and two GV funds were listed as selling shareholders of Qualcomm stock issued as payment for the acquisition. Those funds reportedly held about 3.196 million shares combined, which does not match the 2.977 million in Alphabet's filing, and the gap has not been fully explained.
Startup data provider Dealroom noted that 13F filings capture only quarter-end holdings and reveal nothing about when, at what cost or why a position was taken.
Qualcomm's Growing List of Cloud Partners
In September 2026, Qualcomm reached a multi-generation custom chip agreement with Amazon Web Services covering AI inference and data center optical interconnects. Reuters reported that Amazon could buy up to about $60 billion in Qualcomm AI data center chips and related products, and that Qualcomm granted Amazon warrants for up to 25 million shares.
Qualcomm is also working on data center chip efforts with Microsoft and Meta Platforms. Still, Amon has pointed to supply constraints, noting that capacity in advanced semiconductor processes remains tight, and the company faces entrenched rivals including Nvidia, AMD, Broadcom and Marvell.
Alphabet's Multi-Supplier Approach to Compute
Alphabet designs its own tensor processing units, first introduced in 2015, which underpin models such as Gemini and are offered to outside customers through Google Cloud. Yet it leans on partners too: Broadcom signed a deal in April 2026 to design and supply TPUs for future generations through 2031, and Alphabet also holds Arm shares and works with Marvell on custom AI chips.
There is no public indication that Alphabet and Qualcomm have agreed on data center chip supply or custom computing. Their existing relationship centers on phones, cars and computing devices, including an expanded automotive collaboration announced in January 2026 and the use of Snapdragon X Elite in the Googlebook launched in September.
What the Stake Signals for the AI Infrastructure Market
The disclosure illustrates how equity ties between chipmakers and cloud giants are becoming part of the competition for AI computing, which now spans chip design, memory, networking and software rather than just GPU purchases.
For investors, the key questions are whether Qualcomm can credibly hit its fiscal 2027 target and whether the Alphabet relationship turns into real orders. With Nvidia's CUDA ecosystem still dominant, Qualcomm's ability to prove software compatibility and reliable delivery will likely shape how its data center push is judged.
Source: BigGo Finance
