Portman Square Capital LLP

Hedge Fund • Vol Arbitrage

Portman Square Capital LLP is a Hedge Fund specializing in Vol Arbitrage led by Sutesh Kumar Sharma, reporting $4.2B in AUM as of Q3 2025 with 41% Technology concentration, 87% concentrated in top 10 holdings, 16% allocation to MCHPP, and 41% technology allocation.

CEOSutesh Kumar Sharma

Portfolio Value: $45.7M
Positions: 18
Top Holding: MCHPP at 16.13%
Last Reported: Q3 2025

Address10 Portman Square, London, W1H 6AZ, United Kingdom

Top Holdings

Largest long holdings in Portman Square Capital LLP's portfolio (86.5% of total portfolio)

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Holding	Sector	Position	Weight	Traded	Ownership	Owned Since
1 Microchip Technology Incorporated Depositary Shares Each Representing a 1/20th Interest in a Share of 7.50% Series A Mandatory Convertible Preferred Stock MCHPP	Semiconductors Technology	$7.4M	16.13%	—	0.02% 125.0K shares	Q1 2025 Held for 8 months
2 BridgeBio Pharma BBIO	Biotechnology Healthcare	$6.1M	13.38%	-$1.4M Sold	0.06% 117.8K shares	Q3 2023 Held for 2y 2m
3 Wayfair W	Specialty Retail Consumer Cyclical	$5.5M	12.12%	-$11.0M Sold	0.05% 62.1K shares	Q4 2022 Held for 2y 11m
4 Itron ITRI	Hardware, Equipment & Parts Technology	$3.8M	8.23%	+$3.8M Bought	0.07% 30.2K shares	Q2 2024 Held for 1y 5m
5 Lucid Group, Inc. LCID	Auto - Manufacturers Consumer Cyclical	$3.7M	8.17%	+$2.2M Bought	0.05% 157.1K shares	Q2 2025 Held for 5 months
6 BlackLine BL	Software - Application Technology	$3.5M	7.70%	+$3.1M Bought	0.11% 66.4K shares	Q2 2024 Held for 1y 5m
7 Tetra Tech TTEK	Engineering & Construction Industrials	$3.4M	7.47%	+$2.9M Bought	0.04% 102.3K shares	Q3 2023 Held for 2y 2m
8 Global Payments GPN	Specialty Business Services Industrials	$2.7M	5.84%	+$2.7M New	0.01% 32.2K shares	Q1 2024 Held for 1y 8m
9 Synaptics SYNA	Semiconductors Technology	$1.9M	4.25%	+$1.9M Bought	0.07% 28.4K shares	Q4 2024 Held for 11 months
10 Albemarle ALB	Chemicals - Specialty Basic Materials	$1.5M	3.24%	+$1.5M New	0.02% 18.3K shares	Q1 2025 Held for 8 months

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Changes

Portfolio activity, position movements, and quarter-over-quarter changes in Portman Square Capital LLP's latest filing

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Market Value

$45.7M

Prior: $58.0M

Q/Q Change

-21.14%

-$12.3M

Net Flows % of MV

-62.96%

Turnover Ratio

71.77%

New Purchases

4 stocks

$5.6M

Added To

5 stocks

+$8.4M

Sold Out Of

19 stocks

$29.6M

Reduced Holdings

3 stocks

-$13.3M

Increased Positions

Position	Shares Δ	Change
1 Global Payments GPN	New	0 → 32.2K +$2.7M
2 Albemarle ALB	New	0 → 18.3K +$1.5M
3 iShares MSCI India INDA	New	0 → 22.5K +$1.2M
4 Hannon Armstrong Sustainable Infrastructure Capital HASI	New	0 → 9.0K +$277.7K
5 BlackLine BL	+711.61%	8.2K → 66.4K +$3.1M

Decreased Positions

Position	Shares Δ	Change
1 Insulet PODD	Sold	41.7K → 0 −$13.1M
2 Alnylam Pharmaceuticals ALNY	Sold	7.0K → 0 −$2.3M
3 Lowe's Companies LOW	Sold	9.2K → 0 −$2.0M
4 Diamondback Energy FANG	Sold	10.9K → 0 −$1.5M
5 ConocoPhillips COP	Sold	14.1K → 0 −$1.3M