UBS AM's Q4 2025 13F Stayed Anchored in Nvidia, Microsoft and Apple

UBS AM reported $472.97B in 2025Q4 13F value, with the comparable top-500 holdings set rising +2.3% to $449.47B. The surface story is familiar: Nvidia, Microsoft and Apple dominate the top of the book. The more useful signal is that UBS AM did not chase the quarter with a large reshuffle. It kept the three mega-cap anchors broadly steady and made only measured trims around Alphabet and Broadcom.

That is why this filing reads as a benchmark-aware mega-cap portfolio rather than a dramatic active bet. Nvidia alone was $36.53B, or 8.13% of the tracked value. Microsoft and Apple followed at $29.10B and $28.67B. Together, those three names formed a nearly 21% top-of-book spine.

The Top Three Did the Heavy Lifting

The filing's first lesson is scale. Nvidia at $36.53B was not just the largest position; it was larger than the combined value of several lower top-ten names. Microsoft and Apple were held roughly flat, which means their role in the portfolio came from sustained exposure rather than fresh buying.

For 13F readers, that matters because a flat share count can still be a strong signal when the position is already this large. UBS AM did not need to increase Nvidia to keep it as the portfolio's center of gravity. The same logic applies to Microsoft and Apple: the filing shows persistence, not headline turnover.

Alphabet and Broadcom Were Trimmed at the Margin

The most visible top-ten trims were Alphabet and Broadcom, each down 6% in share terms. Those reductions did not remove either company from the core. GOOGL still represented $12.80B, while AVGO remained $11.56B. The trim looks like sizing discipline inside a crowded mega-cap sleeve rather than an exit call.

That distinction is important. A 6% share reduction in a top-five technology name can sound dramatic in isolation. Inside a $472.97B 13F book with 500 displayed holdings, it is better read as portfolio maintenance unless it repeats across future quarters or appears alongside broader selling in related holdings.

Meta Was the Subtle Add

The standout add inside the top ten was Meta, where shares rose 8% and the position reached $8.64B. That does not make Meta the primary story; it was still behind Nvidia, Microsoft, Apple, Amazon, Alphabet, Broadcom, GOOG and Tesla. But it shows where UBS AM allowed incremental exposure to grow while trimming parts of the same mega-cap technology complex.

Amazon stayed roughly flat at $16.12B, Tesla was also roughly flat at $9.09B, and Eli Lilly rounded out the top ten. The result is a portfolio whose largest weights remain heavily tied to AI infrastructure, cloud software, digital advertising and platform scale.

What to Watch Next

The next 13F comparison should focus on whether the GOOGL and AVGO trims continue in 2026Q1 or reverse. If the trims continue while Meta or Amazon rise again, the filing would point to a real shift within mega-cap technology. If they stabilize, 2025Q4 will look like routine weight control.

Investors should compare the UBS AM filer profile with live holders for NVDA, MSFT, AAPL and META. The signal here is not that UBS AM found a hidden small-cap idea. It is that one of the largest institutional books stayed committed to the same mega-cap winners while making modest relative adjustments beneath the surface.

What Makes This Different From a Simple Index Read

UBS AM is large enough that some of its U.S. equity exposure will naturally resemble the market. That does not make the filing irrelevant. The useful work is separating structural scale from quarter-specific changes. Nvidia, Microsoft and Apple remained structurally large. Alphabet and Broadcom were trimmed by similar share percentages. Meta moved in the other direction. Those details are where the filing becomes more than a list of familiar names.

Because the largest positions were already so big, even small percentage changes can alter relative weights. A 6% trim in Alphabet or Broadcom does not erase the position, but it can free capital or reduce concentration within the same technology complex. An 8% increase in Meta is not a portfolio overhaul, but it shows the manager was not uniformly reducing platform exposure.

How Retail Investors Should Read It

The filing is most useful as a baseline for consensus ownership. If UBS AM, other large asset managers and active stock pickers all keep Nvidia, Microsoft and Apple near the top, then those stocks have broad institutional support. If future filings show UBS AM reducing one of those names while other managers do the same, the signal becomes stronger. A single quarter from one institution is a clue, not a final verdict.

That is why the next quarter matters. The 2025Q4 report gives investors a map of where UBS AM stood at year-end: still anchored in the dominant platform companies, slightly lighter in some AI-adjacent names, and incrementally more exposed to Meta. The next report will show whether those were tactical adjustments or the beginning of a more durable internal rotation.