Alliancebernstein L P 13F Portfolio

The biggest dollar adds are a clear tell: Alliancebernstein is pushing deeper into the infrastructure layer of AI and industrial complexity, not chasing the same front-page stories as everyone else.

• KLA (up 78.1% in shares, +$4.82B) is the standout conviction move. Pushing it to 3.64% of the book makes it a true core holding, and signals a view that process control and yield management are the real choke points in the AI capex cycle.
• Micron (shares up 94.1%, +$547.3M) is a high-beta expression on memory as the next leg of AI infrastructure spend. They are willing to wear more volatility here than in Nvidia, which they only nudged lower.
• Eaton (+38.9% in shares, +$463.3M) and GE Aerospace (+23.2%, +$312.1M) show a bet that electrification and aero content will quietly benefit from the same data-center, defense and reshoring themes that drive AI.
• RTX (+68.2%, +$688.5M) extends that logic into defense/aerospace, pairing the tech-heavy book with hard-asset exposure to geopolitical tension.
• On the portfolio-level overlay, VUG (+89.8%, +$597.5M) and higher stakes in IVV, ITOT, and their own active ETFs (FWD, EMOP, NYM) indicate they want more growth and equity beta, but through diversified wrappers rather than yet another marginal tech stock.

The funding side of this quarter is blunt: use huge, unrealized winners as an internal bank, and prune areas where upside looks more fully priced than the new ideas.

• Amazon is the single largest trim (shares down 28.3%, -$3.11B), even though it remains a 2.60% position. That looks like classic profit-taking to fund higher-conviction cyclical and infrastructure plays, not a structural rejection of e‑commerce or cloud.
• Microsoft (-18.2%, -$2.15B), Alphabet GOOG (-4.6%, -$510.6M), Meta (-6.1%, -$443.5M) and Broadcom (-7.5%, -$574.4M) are all being clipped at very large gains versus cost. The manager is consciously reducing crowding in the ‘AI platform’ complex while keeping meaningful exposure.
• On the healthcare side, they are notably ruthless where momentum has broken or valuation feels stretched: McKesson (-24.7%, -$479.2M), Vertex (-22.8%, -$398.1M) and Stryker (-18.6%, -$370.0M) all see heavy selling, with Stryker actually sitting below average cost.
• Taiwan Semi (-17.1%, -$491.1M) and CBOE (-19.6%, -$279.3M) are also harvests: cyclical and market-structure names trimmed to finance the move into semicap, memory, aero and growth ETFs. Healthcare isn’t abandoned — Eli Lilly, Merck and UnitedHealth remain sizeable — but the risk budget is clearly being reprioritized.

The sector chart confirms what the single-name moves hint at: this is a book consciously dialling up technology as a percentage of risk, but rotating within tech from front-end platforms to back-end enablers.

Technology rises to 53.76% of the top-50 from 51.82%, driven not by Nvidia (slightly trimmed) but by larger stakes in KLA, Micron, Texas Instruments, Eaton, GE and Motorola Solutions. Semiconductor equipment, memory, analog and communications infrastructure are where they see the next dollar of incremental return.

Consumer Discretionary falls from 19.06% to 16.90% as Amazon, Booking, Costco, TJX, Walmart and Sherwin-Williams are used as cash machines. That’s a quiet but meaningful de-emphasis of US consumer winners in favor of capex and industrial exposure.

Health Care edges down from 9.72% to 9.24% as they rotate from tools and distributors (McKesson, Stryker, Vertex, Intuitive Surgical) toward steadier pharma and managed care (Merck, Johnson & Johnson, UnitedHealth). Industrials rise from 2.14% to 2.45% on RTX and Tesla, while Energy (Exxon) and Finance (JPMorgan, Bank of America) see modest net adds, giving the portfolio more cyclicality and factor balance around its tech core.

Unclassified vehicles — largely broad and growth ETFs plus Berkshire — tick up to 8.61% from 8.04%, underlining a preference to express some themes via baskets rather than more idiosyncratic stock picks at this stage of the cycle.

Taken together, this 13F says Alliancebernstein is not backing away from AI or growth; it is refining the expression. The center of gravity is shifting from big-tech narratives to the harder-to-replicate hardware, tools and infrastructure that actually enable those narratives.

Expect them to keep Nvidia as a flagship but not the only star, while gradually redistributing surplus gains from megacap platforms and consumer champions into semicap, memory, power management and aerospace/defense. That mix pairs structural AI and electrification themes with cyclical upside if industrial spending and geopolitics stay hot.

The growing use of ETFs — especially growth-heavy VUG and broad indices like IVV and ITOT — suggests a manager aware of crowding and single-name blow-up risk, using baskets to keep beta up while rotating stock-specific risk into under-owned industrial and healthcare names. Slight trims in high-multiple healthcare tools and distributors hint at valuation discipline and a willingness to cut even longstanding winners when risk/reward compresses.

If the AI capex wave broadens beyond GPUs into memory, equipment and power infrastructure, this quarter’s moves position the book to benefit disproportionately. If instead mega-platform multiples compress, they’ve already taken some money off the table and diversified the sources of growth — exactly what a mature, benchmark-aware allocator with a 21.51% three-year annualized record is supposed to do.