ALLIANCEBERNSTEIN L.P.
SEC Form 13F institutional filer · CIK 0001109448
13F-HR · 518 reported holdings · 2026-03-31
Asset management firm, subsidiary of AXA Equitable Holdings.
Reported long-US-equity value
$242.36B
Top-10 concentration
44.0%
ALLIANCEBERNSTEIN L.P. — $242B AUM allocation strategy
ALLIANCEBERNSTEIN L.P. files SEC Form 13F and reports $242B of long US equity value across 518 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 22.2%, followed by Communication Services 11.2% and Consumer Discretionary 6.0%.
The top 10 holdings account for 44% of reported value — a broadly spread portfolio. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
ALLIANCEBERNSTEIN L.P. — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$242B
total across 518 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
44% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$USB +5.35M sh · +$285M+$DXCM +4.3M sh · +$285M+$CARR +4.03M sh · +$213M
Biggest trims (shares)
−$OTIS −11.4M sh · −$992M−$CMG −11.1M sh · −$413M−$CPRT −9.95M sh · −$389M
Exited to nil (held last quarter, gone now)
None this quarter
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Semiconductors11.1%—
- Interactive Media & Services9.8%—
- Systems Software6.3%—
- Broadline Retail5.0%—
- Technology Hardware, Storage & Peripherals4.8%—
- Transaction & Payment Processing Services2.7%—
- Pharmaceuticals1.9%—
- Health Care Equipment1.8%—
- Other holdings56.5%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
9 of 9 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $NVDA | NVIDIA Corporation | 98.5M | $18.4B | -2.59M | 7.6% |
| $MSFT | Microsoft Corporation | 31.8M | $15.4B | -4.29M | 6.3% |
| $AMZN | Amazon.com Inc | 52.6M | $12.2B | -1.29M | 5.0% |
| $GOOGL | Alphabet Inc | 38.4M | $12.1B | -999K | 5.0% |
| $AAPL | Apple Inc | 42.7M | $11.6B | +1.99M | 4.8% |
| $AVGO | Broadcom Inc | 24.9M | $8.61B | -407K | 3.6% |
| $META | Meta Platforms Inc | 12.7M | $8.37B | -169K | 3.5% |
| $V | Visa Inc | 18.2M | $6.37B | -421K | 2.6% |
| $LLY | Eli Lilly and Company | 4.43M | $4.76B | -193K | 2.0% |
…and 509 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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