PINNBROOK CAPITAL MANAGEMENT LP
SEC Form 13F institutional filer · CIK 0001856103
13F-HR · 17 reported holdings · 2026-03-31
Reported long-US-equity value
$0.06B
Top-10 concentration
82.6%
PINNBROOK CAPITAL MANAGEMENT LP — $62.4M AUM allocation strategy
PINNBROOK CAPITAL MANAGEMENT LP files SEC Form 13F and reports $62.4M of long US equity value across 17 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 36.5%, followed by Energy 19.5% and Industrials 13.7%.
The top 10 holdings account for 83% 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.
PINNBROOK CAPITAL MANAGEMENT LP — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$62.4M
total across 17 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
83% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$MRK +22.8K sh · +$3.09M+$ROST +1.45K sh · +$1.13M+$AMAT +1.4K sh · +$1.61M
Biggest trims (shares)
−$WAB −28.2K sh · −$5.73M−$WDC −28.1K sh · −$3.55M−$CIEN −17.1K sh · −$3.68M
Exited to nil (held last quarter, gone now)
$CHRW ($13.5M last qtr)$XLV ($11.8M last qtr)$AME ($10.7M last qtr)$DHR ($9.93M last qtr)$CCL ($9.77M 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)
- Semiconductor Materials & Equipment17.7%—
- Apparel Retail13.3%—
- Oil & Gas Equipment & Services10.0%—
- Oil & Gas Exploration & Production9.5%—
- Electronic Manufacturing Services9.4%—
- Pharmaceuticals8.9%—
- Industrial Gases8.1%—
- Technology Hardware, Storage & Peripherals7.4%—
- Other holdings15.7%—
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 |
|---|---|---|---|---|---|
| $SLB | SLB Limited | 121K | $6.21M | — | 10.0% |
| $LRCX | Lam Research Corporation | 28.1K | $6M | — | 9.6% |
| $DVN | Devon Energy Corporation | 118K | $5.95M | — | 9.5% |
| $JBL | Jabil Inc | 22K | $5.85M | — | 9.4% |
| $MRK | Merck & Company Inc | 46.1K | $5.55M | +22.8K | 8.9% |
| $ROST | Ross Stores Inc | 23.9K | $5.18M | +1.45K | 8.3% |
| $LIN | Linde plc | 10.1K | $5.03M | -7.5K | 8.1% |
| $AMAT | Applied Materials Inc | 14.7K | $5.02M | +1.4K | 8.1% |
| $WDC | Western Digital Corporation | 13.2K | $3.57M | -28.1K | 5.7% |
| $TJX | TJX Companies Inc | 19.5K | $3.12M | -10.1K | 5.0% |
…and 7 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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