Portman Square Capital LLP
SEC Form 13F institutional filer · CIK 0001966898
13F-HR · 12 reported holdings · 2026-03-31
Reported long-US-equity value
$0.25B
Top-10 concentration
98.1%
Portman Square Capital LLP — $250M AUM allocation strategy
Portman Square Capital LLP files SEC Form 13F and reports $250M of long US equity value across 12 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 43.7%, followed by Materials 21.8% and Utilities 20.5%.
The top 10 holdings account for 98% 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.
Portman Square Capital LLP — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$250M
total across 12 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
98% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$MCHP +1.02M sh · +$58.5M+$BA +230K sh · +$10.7M+$PCG +177K sh · +$3.32M
Biggest trims (shares)
−$ARES −188K sh · −$13.9M−$ALB −125K sh · +$5.02M−$HPE −22.9K sh · −$833K
Exited to nil (held last quarter, gone now)
$KKR ($20.9M last qtr)$COIN ($651K last qtr)$WEC ($428K 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)
- Semiconductors29.3%—
- Specialty Chemicals21.8%—
- Multi-Utilities18.8%—
- Aerospace & Defense9.2%—
- Technology Hardware, Storage & Peripherals7.5%—
- Application Software6.9%—
- Asset Management & Custody Banks4.6%—
- Electric Utilities1.7%—
- Other holdings0.2%—
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 |
|---|---|---|---|---|---|
| $MCHP | Microchip Technology Incorporated | 1.18M | $67.5M | +1.02M | 27.0% |
| $ALB | Albemarle Corporation | 628K | $54.5M | -125K | 21.8% |
| $NEE | NextEra Energy Inc | 485K | $41.4M | -5.4K | 16.6% |
| $BA | Boeing Company | 356K | $23M | +230K | 9.2% |
| $HPE | Hewlett Packard Enterprise Company | 409K | $18.8M | -22.9K | 7.5% |
| $ARES | Ares Management Corporation | 312K | $11.4M | -188K | 4.6% |
| $ORCL | Oracle Corporation | 67K | $9.85M | — | 3.9% |
| $CRM | Salesforce Inc | 54.6K | $7.35M | — | 2.9% |
| $ON | ON Semiconductor Corporation | 96.1K | $5.95M | +62.6K | 2.4% |
| $PCG | Pacific Gas & Electric Co | 315K | $5.53M | +177K | 2.2% |
…and 2 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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