Portman Square Capital LLP
Follow13F filer, CIK 1966898, London, United Kingdom
Portman Square Capital LLP reported $2,596,771,574 across 102 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-04-27. Its ten largest share positions make up 66.68% of the portfolio.
Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001172661-26-001542
- Period
- 2026-03-31
- Reported value
- $2.6B
- Holdings
- 102
- Top 10 weight
- 66.68%
- New
- 32
- Sold out
- 47
Largest buys vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| PPLnew | +1,530,000 | $78.3M |
| MCHPPadded | +1,050,000 | $60.3M |
| NOVTUadded | +550,000 | $29.5M |
| NEEnew | +575,000 | $29M |
| BAPRAadded | +254,000 | $16.4M |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Largest sells vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| SOreduced | -450,000 | -$23.3M |
| KKRexited | -123,579 | -$15.8M |
| ALBEMARLE CORPreduced | -150,000 | -$10.8M |
| ARES MANAGEMENT CORPORATIONreduced | -188,000 | -$6.88M |
| BAexited | -24,276 | -$5.27M |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Holdings, Q1 2026
Share positions as resolved from 13F-HR 0001172661-26-001542, largest first. % of portfolio is the value over $656,632,783, the sum of the share positions whose value is usable for ratios (method).
| Security | History | Shares | Value | % of portfolio | Change | Latest event | Timeline |
|---|---|---|---|---|---|---|---|
| PPLPPL CORP | 1,530,000 | $78.3M | 11.92% | new | Timeline | ||
| SOSOUTHERN CO | 1,336,000 | $69.2M | 10.54% | -450,000 | Timeline | ||
| MCHPPMICROCHIP TECHNOLOGY INC. | 1,175,000 | $67.5M | 10.27% | +1,050,000 | Timeline | ||
| NOVTUNOVANTA INC | 960,000 | $51.4M | 7.83% | +550,000 | Timeline | ||
| ALBEMARLE CORPALBEMARLE CORP | 541,000 | $39M | 5.93% | -150,000 | |||
| NEENEXTERA ENERGY INC | 385,397 | $35.8M | 5.45% | -5,397 | Timeline | ||
| NEENEXTERA ENERGY INC | 575,000 | $29M | 4.41% | new | Timeline | ||
| BAPRABOEING CO | 356,000 | $23M | 3.51% | +254,000 | Timeline | ||
| PG&E CORPPG&E CORP | 381,000 | $16.5M | 2.51% | 0 | |||
| ALBALBEMARLE CORP | 86,811 | $15.6M | 2.37% | +24,654 | Timeline | ||
| GLDSPDR GOLD TR | 36,000 | $15.5M | 2.36% | new | Timeline | ||
| HEWLETT PACKARD ENTERPRISE CHEWLETT PACKARD ENTERPRISE C | 220,000 | $14.3M | 2.18% | 0 | |||
| WWAYFAIR INC | 182,039 | $13.7M | 2.09% | +153,617 | Timeline | ||
| ARES MANAGEMENT CORPORATIONARES MANAGEMENT CORPORATION | 312,000 | $11.4M | 1.74% | -188,000 | |||
| ORCLORACLE CORP | 66,983 | $9.85M | 1.5% | new | Timeline | ||
| SHIFT4 PMTS INCSHIFT4 PMTS INC | 155,000 | $8.49M | 1.29% | 0 | |||
| RDDTREDDIT INC | 54,600 | $7.35M | 1.12% | new | Timeline | ||
| IRENIREN LIMITED | 176,466 | $6.05M | 0.92% | new | Timeline | ||
| ONON SEMICONDUCTOR CORP | 96,134 | $5.95M | 0.91% | +62,609 | Timeline | ||
| NEENEXTERA ENERGY INC | 100,000 | $5.65M | 0.86% | 0 | Timeline | ||
| ALNYALNYLAM PHARMACEUTICALS INC | 16,924 | $5.6M | 0.85% | +14,467 | Timeline | ||
| PCGPG&E CORP | 314,773 | $5.53M | 0.84% | +177,377 | Timeline | ||
| FLRFLUOR CORP | 99,844 | $4.66M | 0.71% | +11,500 | Timeline | ||
| HPEHEWLETT PACKARD ENTERPRISE C | 188,504 | $4.49M | 0.68% | -22,901 | Timeline | ||
| LCIDLUCID GROUP INC | 461,510 | $4.4M | 0.67% | -2,487 | Timeline | ||
| TTEKTETRA TECH INC NEW | 144,061 | $4.34M | 0.66% | -58,763 | Timeline | ||
| SOSOUTHERN CO | 44,375 | $4.28M | 0.65% | -3,254 | Timeline | ||
| KWEBKRANESHARES TRUST | 140,000 | $3.98M | 0.61% | new | Timeline | ||
| NBISNEBIUS GROUP N.V. | 35,087 | $3.64M | 0.55% | new | Timeline | ||
| NEENEXTERA ENERGY INC | 51,000 | $2.67M | 0.41% | 0 | Timeline | ||
| SYNASYNAPTICS INC | 33,322 | $2.33M | 0.36% | +16,905 | Timeline | ||
| ZTOZTO EXPRESS CAYMAN INC | 80,506 | $2.03M | 0.31% | new | Timeline | ||
| NETCLOUDFLARE INC | 7,278 | $1.5M | 0.23% | -420 | Timeline | ||
| STWDSTARWOOD PPTY TR INC | 65,893 | $1.13M | 0.17% | new | Timeline | ||
| VOYGVOYAGER TECHNOLOGIES INC | 28,700 | $671K | 0.1% | 0 | Timeline | ||
| SOFISOFI TECHNOLOGIES INC | 37,753 | $600K | 0.09% | new | Timeline | ||
| OREALTY INCOME CORP | 9,254 | $566K | 0.09% | new | Timeline | ||
| UPSTUPSTART HLDGS INC | 11,810 | $303K | 0.05% | +2,710 | Timeline | ||
| XRXXEROX HOLDINGS CORP | 16,807 | $21.7K | <0.01% | 0 | Timeline |
Options
Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| GLDSPDR GOLD TR GOLD SHS | call | 782,500 | $337M | +424,500 |
| NEENEXTERA ENERGY INC COM | put | 2,185,600 | $203M | -10,500 |
| SOSOUTHERN CO COM | put | 986,700 | $95.2M | +29,700 |
| HPEHEWLETT PACKARD ENTERPRISE C Stock | put | 3,331,800 | $79.3M | +497,100 |
| PPLPPL CORP Stock | put | 1,775,000 | $67.8M | new |
| ORCLORACLE CORP COM | put | 455,000 | $66.9M | new |
| PCGPG&E CORP Stock | put | 3,803,300 | $66.8M | -200,700 |
| NBISNEBIUS GROUP N.V. SHS CLASS A | put | 639,300 | $66.3M | -7,800 |
| ALBALBEMARLE CORP COM | put | 368,200 | $66.1M | -185,300 |
| BABOEING CO COM | put | 310,800 | $61.9M | -176,200 |
| MCHPMICROCHIP TECHNOLOGY INC. Stock | put | 817,800 | $52.8M | +263,400 |
| CRWVCOREWEAVE INC COM | put | 550,000 | $42.6M | new |
| AKAMAKAMAI TECHNOLOGIES INC Stock | put | 344,200 | $39.5M | -35,800 |
| BABAALIBABA GROUP HLDG LTD SPONSORED ADS | put | 295,000 | $37M | +12,100 |
| LYVLIVE NATION ENTERTAINMENT IN Stock | put | 237,000 | $36.1M | +40,000 |
| UGIUGI CORP NEW Stock | put | 976,500 | $35.6M | -379,000 |
| RDDTREDDIT INC Stock | put | 256,600 | $34.6M | new |
| ARESARES MANAGEMENT CORPORATION Stock | put | 307,000 | $33.5M | -88,500 |
| ONON SEMICONDUCTOR CORP Stock | put | 451,700 | $28M | +183,300 |
| NOVTNOVANTA INC COM | put | 231,600 | $27.4M | +133,300 |
| STWDSTARWOOD PPTY TR INC REIT | put | 1,501,000 | $25.8M | +310,600 |
| FEFIRSTENERGY CORP COM | put | 504,900 | $25.6M | -168,300 |
| ENOVENOVIS CORPORATION COM | call | 998,600 | $22.7M | +500,300 |
| GLDSPDR GOLD TR GOLD SHS | put | 50,000 | $21.5M | new |
| SPBSPECTRUM BRANDS HOLDINGS INC Stock | call | 289,600 | $21.3M | +166,900 |
| TTEKTETRA TECH INC NEW COM | put | 685,500 | $20.6M | +80,700 |
| FLRFLUOR CORP COM | put | 405,800 | $18.9M | +100 |
| OREALTY INCOME CORP REIT | put | 303,300 | $18.6M | +193,100 |
| GPNGLOBAL PMTS INC COM | put | 273,800 | $18.4M | -100,000 |
| WGOWINNEBAGO INDS INC COM | call | 587,300 | $18.2M | +287,300 |
| AEISADVANCED ENERGY INDS Stock | put | 56,000 | $18.1M | -200 |
| USOUNITED STS OIL FD LP COM | put | 141,300 | $18M | new |
| ITRIITRON INC Stock | put | 185,300 | $16.6M | -9,000 |
| BLBLACKLINE INC COM | put | 440,200 | $16.3M | +93,600 |
| EVRGEVERGY INC Stock | put | 185,000 | $15.2M | +55,000 |
| GPNGLOBAL PMTS INC COM | call | 219,900 | $14.8M | +191,400 |
| USOUNITED STS OIL FD LP COM | call | 113,600 | $14.5M | new |
| ZTOZTO EXPRESS CAYMAN INC SPONSORED ADS A | put | 551,400 | $13.9M | new |
| WECWEC ENERGY GROUP INC Stock | put | 115,000 | $13.3M | -1,100 |
| NETCLOUDFLARE INC Stock | put | 63,000 | $13M | +14,200 |
| ALNYALNYLAM PHARMACEUTICALS INC Stock | put | 37,900 | $12.5M | +8,900 |
| SYNASYNAPTICS INC Stock | put | 146,300 | $10.2M | +13,300 |
| OSISOSI SYSTEMS INC COM | put | 37,900 | $10.1M | +15,900 |
| JAZZJAZZ PHARMACEUTICALS PLC Stock | put | 53,000 | $10M | new |
| BBIOBRIDGEBIO PHARMA INC COM | call | 133,600 | $9.92M | new |
| KWEBKRANESHARES TRUST CSI CHI INTERNET | call | 325,000 | $9.24M | -275,000 |
| GHGUARDANT HEALTH INC Stock | put | 100,000 | $9.24M | new |
| LCIDLUCID GROUP INC Stock | put | 925,500 | $8.82M | +445,500 |
| FOURSHIFT4 PMTS INC Stock | put | 197,400 | $8.63M | +97,400 |
| BBIOBRIDGEBIO PHARMA INC COM | put | 60,000 | $4.46M | -125,900 |
| APOAPOLLO GLOBAL MGMT INC Stock | call | 7,000 | $780K | new |
| BXBLACKSTONE INC COM | call | 6,000 | $690K | new |
| CGCARLYLE GROUP INC Stock | call | 14,000 | $677K | new |
| KKRKKR & CO INC COM | call | 7,000 | $648K | new |
| TPGTPG INC Stock | call | 15,000 | $608K | new |
| WWAYFAIR INC CL A | put | 7,500 | $564K | +1,400 |
| OWLBLUE OWL CAPITAL INC Stock | call | 30,000 | $274K | new |
| HLNEHAMILTON LANE INC CL A | call | 2,200 | $219K | new |
Principal amounts
Notes and convertibles filed as a face amount (PRN). A face amount is never added to a share count (H6).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| EVERGY INCEVERGY INC NOTE 4.500%12/1 | principal | 20,000,000 | $27M | 0 |
| JAZZ INVESTMENTS I LTDJAZZ INVESTMENTS I LTD Convertible | principal | 12,500,000 | $17.7M | new |
| GUARDANT HEALTH INCGUARDANT HEALTH INC DEBT 1.250% 2/1 | principal | 10,000,000 | $16.8M | new |
| OSI SYSTEMS INCOSI SYSTEMS INC NOTE 2.250% 8/0 | principal | 7,000,000 | $10.7M | 0 |
| STARWOOD PPTY TR INCSTARWOOD PPTY TR INC NOTE 6.750% 7/1 | principal | 8,000,000 | $8.16M | -10,000,000 |
Sold out in Q1 2026
Positions in the previous quarter's report that this quarter's report no longer lists.
| Security | Shares before | Value before | Type |
|---|---|---|---|
| ALIBABA GROUP HLDG LTDALIBABA GROUP HLDG LTD | 54,000,000 | $84M | principal |
| KKRKKR & CO INC | 611,800 | $78M | put |
| UGI CORP NEWUGI CORP NEW | 54,714,000 | $77.7M | principal |
| XLESELECT SECTOR SPDR TR | 800,000 | $35.8M | call |
| GMEGAMESTOP CORP | 1,664,200 | $33.4M | put |
| HYGISHARES TR | 400,000 | $32.3M | put |
| COINCOINBASE GLOBAL INC | 100,000 | $22.6M | put |
| KKRKKR & CO INC | 123,579 | $15.8M | shares |
| COINBASE GLOBAL INCCOINBASE GLOBAL INC | 10,000,000 | $10.3M | principal |
| CMSCMS ENERGY CORP | 138,600 | $9.69M | put |
| GUESS? INCGUESS? INC | 500,000 | $8.38M | put |
| PCGPG&E CORP | 500,000 | $8.04M | call |
| MELIMERCADOLIBRE INC | 3,200 | $6.45M | put |
| BKNGBOOKING HOLDINGS INC | 1,200 | $6.43M | put |
| BABOEING CO | 24,276 | $5.27M | shares |
| KKR & CO INCKKR & CO INC | 100,000 | $5.19M | shares |
| SCHWCHARLES SCHWAB CORP (THE) | 51,100 | $5.11M | put |
| HASIHA SUSTAINABLE INFRA CAP INC | 159,900 | $5.03M | put |
| SPGIS&P GLOBAL INC | 9,600 | $5.02M | call |
| VLOVALERO ENERGY CORP | 29,800 | $4.85M | put |
| UNPUNION PAC CORP | 20,900 | $4.83M | put |
| ADPAUTOMATIC DATA PROCESSING IN | 17,100 | $4.4M | call |
| CFCF INDUSTRIES HOLD | 51,700 | $4M | put |
| EXPEEXPEDIA GROUP INC | 13,700 | $3.88M | put |
| UBERUBER TECHNOLOGIES INC | 46,000 | $3.76M | put |
| SPGIS&P GLOBAL INC | 6,800 | $3.55M | put |
| BLBLACKLINE INC | 59,630 | $3.3M | shares |
| CVXCHEVRON CORPORATION | 21,600 | $3.29M | put |
| EOGEOG RES INC | 31,300 | $3.29M | call |
| OREALTY INCOME CORP | 52,400 | $2.95M | call |
| BACBANK OF AMER CORP | 51,300 | $2.82M | put |
| ADPAUTOMATIC DATA PROCESSING IN | 10,900 | $2.8M | put |
| URIUNITED RENTALS INC | 3,200 | $2.59M | put |
| COPCONOCOPHILLIPS | 27,500 | $2.57M | call |
| WYNNWYNN RESORTS LTD | 21,000 | $2.53M | put |
| UNPUNION PAC CORP | 10,100 | $2.34M | call |
| PSXPHILLIPS 66 | 17,000 | $2.19M | put |
| EOGEOG RES INC | 20,400 | $2.14M | put |
| MTCHMATCH GROUP INC NEW | 53,800 | $1.74M | put |
| MCHPMICROCHIP TECHNOLOGY INC. | 26,400 | $1.68M | shares |
| NFLXNETFLIX INC. | 17,000 | $1.59M | put |
| ARANTERO RESOURCES CORP | 43,400 | $1.5M | put |
| ARANTERO RESOURCES CORP | 30,600 | $1.05M | call |
| MAMASTERCARD INCORPORATED | 1,400 | $799K | call |
| EZPWEZCORP INC | 34,000 | $660K | put |
| COINCOINBASE GLOBAL INC | 2,880 | $651K | shares |
| WECWEC ENERGY GROUP INC | 4,054 | $428K | shares |
How Q1 2026 was built
Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-HR 0001172661-26-001542 | base | 2026-04-27 | acceptance time not in the bulk data set |