Duquesne Family Office LLC
SEC Form 13F institutional filer · CIK 0001536411
13F-HR · 18 reported holdings · 2026-03-31
Reported long-US-equity value
$0.00B
Top-10 concentration
77.2%
Duquesne Family Office LLC — $362K AUM allocation strategy
Duquesne Family Office LLC files SEC Form 13F and reports $362K of long US equity value across 18 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 50.2%, followed by Materials 19.5% and Industrials 13.2%.
The top 10 holdings account for 77% of reported value — a conviction-weighted book concentrated in its best ideas. 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.
Duquesne Family Office LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$362K
total across 18 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
77% of value
higher = narrower conviction; lower = spread / hedging
Biggest trims (shares)
−$AMZN −692K sh · −$161K−$WAB −205K sh · −$40.3K−$CRH −97.4K sh · −$19.6K
Exited to nil (held last quarter, gone now)
$XLF ($301K last qtr)$IVZ ($225K last qtr)$GOOG ($121K last qtr)$DAL ($45.2K last qtr)$ON ($29K last qtr)
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)
- Semiconductors24.0%—
- Technology Hardware, Storage & Peripherals12.2%—
- Construction Materials11.0%—
- Passenger Airlines6.7%—
- Managed Health Care6.6%—
- Construction Machinery & Heavy Transportation Equipment6.6%—
- Electronic Manufacturing Services6.0%—
- Electric Utilities5.8%—
- Other holdings21.1%—
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
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $AVGO | Broadcom Inc | 196K | $60.6K | — | 16.8% |
| $CRH | CRH PLC | 378K | $39.7K | -97.4K | 11.0% |
| $SNDK | Sandisk Corporation | 38.2K | $24.2K | — | 6.7% |
| $UAL | United Airlines Holdings Inc | 262K | $24.2K | -85.9K | 6.7% |
| $HUM | Humana Inc | 138K | $23.8K | — | 6.6% |
| $WAB | Westinghouse Air Brake Technologies Corporation | 94.9K | $23.7K | -205K | 6.6% |
| $JBL | Jabil Inc | 82.2K | $21.8K | — | 6.0% |
| $SO | Southern Company | 122K | $21K | +1.03K | 5.8% |
| $LIN | Linde plc | 41.2K | $20.4K | — | 5.6% |
| $STX | Seagate Technology Holdings PLC | 50.7K | $19.9K | — | 5.5% |
…and 8 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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