Stocks/Funds/CIK 1966898

Portman Square Capital LLP

Quarterly 13F filings · Latest period 2026-03-31 · CIK 1966898
Assets
$576M
+5.0% YoY
Holdings
39
Lifetime alpha vs market
-3.80% annual
Average hold time
1.1 yr
median 1.0 yr

Quarterly history

Cum return +56% vs S&P +77% · α -21% lifetimeAUM $576M · peak $644MFlow $218M (+62%)2022-122023-062023-122024-062024-122025-062025-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+3.78%
adds when stocks drop
when a holding falls −10%+
Middle response
-5.71%
baseline attrition
Rally response
-25.15%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
PPLCPPL Corporation Corporat$78M13.6%0.3 yr
SOMNThe Southern Company$69M12.0%0.5 yr
$67M11.7%1.3 yr
$51M8.9%0.5 yr
$39M6.8%1.3 yr
NEENextEra Energy, Inc.$36M6.2%+34.9%0.5 yr
$29M5.0%0.3 yr
$23M4.0%1.5 yr
$16M2.9%0.8 yr
ALBAlbemarle Corporation$16M2.7%+153.7%0.8 yr
GLDSPDR Gold Shares$15M2.7%0.3 yr
$14M2.5%1.5 yr
WWayfair Inc.$14M2.4%+134.8%3.0 yr
$11M2.0%1.3 yr
ORCLOracle Corporation$10M1.7%+5.9%0.3 yr

Portfolio composition (YoY)

Industry mix
Unknown46.7%-27.8pp$269M
Regulated Electric33.5%$193M
Asset Management3.4%-2.5pp$19M
Chemicals - Specialty2.7%$16M
Specialty Retail2.4%+0.6pp$14M
Software - Infrastructure2.0%+1.6pp$11M
Internet Content & Information1.9%+1.5pp$11M
Engineering & Construction1.6%+1.1pp$9M
Semiconductors1.4%+0.2pp$8M
Financial - Capital Markets1.0%$6M
Country
US51.3%+27.9pp
Unknown46.7%-27.8pp
AU1.0%+1.0pp
RU0.6%
CN0.4%
Top 5: 53.0% · Top 10: 73.8% · Top 25: 95.1%

Winners

TickerPrev $PnLYoY %
W$10M+0.01B134.8%
ALNY$3M+0.00B22.5%
FLR$2M+0.00B30.2%
TTEK$0M+0.00B3.7%

Losers

TickerPrev $PnLYoY %

Top buys this quarter · 15

PPLC PPL Corporation Corporate Unitnew+$77M
W Wayfair Inc.+$12M
ORCL Oracle Corporationnew+$10M
RDDT Reddit, Inc.new+$7M
IREN IREN Limitednew+$6M
ALNY Alnylam Pharmaceuticals, Inc.+$5M
ALB Albemarle Corporation+$4M
ON ON Semiconductor Corporation+$4M
PCG PG&E Corporation+$3M
SYNA Synaptics Incorporated+$1M

Top sells this quarter · 15

SOMN The Southern Company$23M
KKR KKR & Co. Inc.exit$11M
BA The Boeing Companyexit$5M
O Realty Income Corporation$5M
BL BlackLine, Inc.exit$2M
TTEK Tetra Tech, Inc.$2M
MCHP Microchip Technology Incorporaexit$2M
SOFI SoFi Technologies, Inc.$1M
HPE Hewlett Packard Enterprise Com$1M
COIN Coinbase Global, Inc.exit$1M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$576M39+44.33%+17.59%+26.74%+0.22B
2025-12-31$351M34+36.58%+17.72%+18.86%-0.32B
2025-09-30$644M27+25.52%+17.52%+8.00%-0.10B
2025-06-30$629M36+6.96%+14.94%-7.98%-0.00B
2025-03-31$549M52-9.48%+8.30%-17.78%+0.19B
2024-12-31$373M57+0.51%+24.89%-24.38%+0.20B
2024-09-30$178M75+16.75%+36.04%-19.29%+0.05B
2024-06-30$128M86+6.49%+24.49%-18.00%+0.03B
2024-03-31$97M83+14.20%+29.62%-15.42%-0.12B
2023-12-31$201M117+11.54%+26.18%-14.64%-0.23B
2023-09-30$386M142-7.88%-3.22%-4.66%+0.10B
2023-06-30$308M133+4.28%+8.68%-4.40%+0.03B
2023-03-31$267M104+4.84%+7.46%-2.62%+0.07B
2022-12-31$184M107