Bank of America’s $1.37T 13F Put Only 12.9% in Its Top Five — Merrill’s ETF Machine in Plain Sight

Bank of America filed a Q4 2025 13F with $1.37T in reported value across 28,105 positions, but the most important number is not the size. It is the shape. The top five holdings made up only 12.9% of the portfolio, and the top 20 included an unusually large ETF block led by VTV, VUG, IEFA, SPY, VOO, IVV, IWF, VEA, IEMG, and VGT. That is not how a traditional stock-picker presents itself. It is how a giant wealth-management platform allocates client money through model portfolios and broad market building blocks.

TL;DR

• Bank of America reported $1.37T in Q4 2025 13F AUM, down 7.4% from $1.47T in Q3.
• The filing was extraordinarily diversified: 28,105 positions, only 12.9% in the top five, and no single holding above 3.0%.
• The clearest tell was the ETF stack: VTV at $26.0B, VUG at $23.4B, SPY at $21.0B, and IEFA at $20.4B.
• Merrill’s public 2025 asset-allocation materials emphasized diversified sleeves across U.S. growth, U.S. value, international developed equities, and emerging markets. The 13F looks exactly like that framework expressed through liquid ETFs.
• This is why Bank of America’s filing reads differently from a pure stock-picker such as FMR: the ETF mix signals portfolio construction at scale, not a narrow set of conviction stock calls.

Why this filing matters

Investors often misread giant bank 13Fs by treating every line item like an active bet. In Bank of America’s case, that is the wrong frame. Yes, the largest single-stock positions were still familiar mega-cap names — MSFT at 3.0%, NVDA at 2.9%, and AAPL at 2.8%. But those weights are small relative to the scale of the book, and they sit beside huge allocations to style, regional, and core-index ETFs.

External context helps explain why. Merrill’s public 2025 strategic asset-allocation tables explicitly map client portfolios across U.S. large-cap growth, U.S. large-cap value, international developed equities, emerging markets, and other asset buckets. Bank of America also spent 2024 expanding professionally managed Merrill portfolio offerings, including income-focused solutions run by the Chief Investment Office. When you put those disclosures next to the Q4 2025 13F, the ETF-heavy top 20 looks less like a trading statement and more like the plumbing of a national advice platform.

Filing snapshot: giant scale, very little concentration

What did Bank of America own in Q4 2025?

The answer depends on whether you mean stock selection or portfolio architecture. On the stock side, the biggest holdings were MSFT, NVDA, AAPL, GOOGL, AVGO, and AMZN. Those are common top positions across large institutions.

But the more distinctive layer was the ETF sleeve. The filing held huge amounts of VTV and VUG for style-box balance, IEFA and VEA for developed international exposure, IEMG for emerging markets, plus broad U.S. beta through SPY, VOO, and IVV. IWF and VGT added more targeted growth and technology sleeves. That lineup looks much closer to a CIO-approved allocation menu than to a fundamental analyst’s short list of best ideas.

The ETF sleeve is the story

The four largest named ETFs alone — VTV, VUG, SPY, and IEFA — totaled about $90.8B. That is roughly 6.6% of the whole filing in just four diversified products. The top three single-stock holdings — MSFT, NVDA, and AAPL — totaled about $103.9B, or 7.6%. In other words, the core ETF sleeve nearly matched the weight of the flagship stock trio.

That balance matters. A pure stock-picker usually wants the top of the portfolio to broadcast conviction in individual companies. Bank of America’s filing instead broadcasts allocation decisions: value versus growth, U.S. versus international, broad beta versus more targeted tilts. The Merrill model-portfolio hypothesis fits that evidence far better than the idea that this is simply a giant long-only stock book.

Why this looks different from FMR and other stock-pickers

Compare the structure, not just the names. A stock-picker like FMR is usually read through company-specific conviction: which businesses made the cut, how large the active weights are, and whether the manager leaned harder into or away from a theme. Bank of America’s Q4 2025 filing is harder to read that way because so much of the top book is wrapped in diversified funds. That lowers interpretability at the single-stock level but increases clarity about the institution’s portfolio-construction process.

That is also why the modest 12.9% top-five concentration matters so much. When a $1.37T filing keeps its largest positions small and fills the top 20 with ETFs, the message is not “we love one stock.” The message is “we are allocating across millions of client objectives with broad, repeatable building blocks.”

Did the Q4 decline change the model?

Not really. The filing’s reported value dropped from $1.47T to $1.37T, but the top positions remained broadly diversified and the ETF-heavy structure stayed obvious. That suggests the quarter was more about market movement and normal rebalancing than a wholesale change in Merrill’s portfolio-construction philosophy.

The practical read-through for retail investors is simple: Bank of America’s 13F is useful, but it is most useful as a window into wealth-management implementation. If you want to know what mega-scale client allocation looks like in public filings, this is one of the clearest examples. If you want a concentrated stock-picking signal, there are better managers to study.

Analyst’s take

Bank of America’s Q4 2025 13F may be the cleanest reminder this filing season that not every giant portfolio is trying to tell a stock-picking story. This one is telling an allocation story. The combination of enormous ETF sleeves, tiny top-position weights, and a 28,105-line-item footprint points toward Merrill’s advisor and CIO ecosystem rather than a centralized high-conviction equity desk.

That does not make the filing less useful. It makes it useful in a different way. Watch how the ETF mix evolves, how international sleeves like IEFA and VEA rank versus U.S. core exposures like SPY, VOO, and IVV, and whether style-box pairs such as VTV and VUG stay balanced. Those signals say more about Bank of America’s public equity positioning than any attempt to reverse-engineer one superstar stock idea from the top of the book.

Frequently asked questions

What did Bank of America buy in Q4 2025?

The largest disclosed holdings included MSFT, NVDA, AAPL, VTV, VUG, SPY, and IEFA. The ETF mix is the bigger story than any one stock.

Why does Bank of America own so many ETFs in its 13F?

Because the filing appears to reflect wealth-management portfolio construction at scale. ETFs make it easier to implement CIO views across value, growth, U.S., international, and sector sleeves for large numbers of client accounts.

Is Bank of America a stock-picker like FMR?

Not in the way this filing reads. The top-five concentration is only 12.9%, and many of the most important positions are diversified ETFs rather than pure single-stock bets.

What should investors watch next quarter?

Watch the balance between VTV and VUG, the ranking of international funds like IEFA and VEA, and whether core index exposure shifts among SPY, VOO, and IVV.