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Portman Square Capital LLP
Period ended Sep 30, 2026 · Latest filing Oct 15, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Sep 30, 2026: $1,765,988,497
More quarters will appear as history becomes available.
Top holdings
Top 10 at Sep 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- IREN LIMITED · ORDINARY SHARES · Q4982L109 · shares · PUT: $195,079,360
- ALIBABA GROUP HLDG LTD · SPONSORED ADS · 01609W102 · shares · PUT: $168,429,148
- SEMTECH CORP · COM · 816850101 · shares · PUT: $134,903,940
- WAYFAIR INC · CL A · 94419L101 · shares · PUT: $101,370,304
- REDDIT INC · CL A · 75734B100 · shares · PUT: $88,213,092
- WAYFAIR INC · CL A · 94419L101 · shares: $76,494,479
- ALIBABA GROUP HLDG LTD · SPONSORED ADS · 01609W102 · shares: $73,516,710
- REDDIT INC · CL A · 75734B100 · shares: $68,196,426
- SPDR GOLD TR · GOLD SHS · 78463V107 · shares · CALL: $45,700,800
- AKAMAI TECHNOLOGIES INC · COM · 00971T101 · shares · PUT: $40,476,810
Reported holdings
87 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| IREN LIMITED | ORDINARY SHARES | Q4982L109 | PUT | 4,772,000 shares | $195,079,360 |
| ALIBABA GROUP HLDG LTD | SPONSORED ADS | 01609W102 | PUT | 1,566,200 shares | $168,429,148 |
| SEMTECH CORP | COM | 816850101 | PUT | 756,400 shares | $134,903,940 |
| WAYFAIR INC | CL A | 94419L101 | PUT | 988,400 shares | $101,370,304 |
| REDDIT INC | CL A | 75734B100 | PUT | 619,300 shares | $88,213,092 |
| WAYFAIR INC | CL A | 94419L101 | — | 745,851 shares | $76,494,479 |
| ALIBABA GROUP HLDG LTD | SPONSORED ADS | 01609W102 | — | 683,622 shares | $73,516,710 |
| REDDIT INC | CL A | 75734B100 | — | 478,773 shares | $68,196,426 |
| SPDR GOLD TR | GOLD SHS | 78463V107 | CALL | 120,000 shares | $45,700,800 |
| AKAMAI TECHNOLOGIES INC | COM | 00971T101 | PUT | 380,600 shares | $40,476,810 |
| CLOUDFLARE INC | CL A COM | 18915M107 | PUT | 113,100 shares | $39,277,368 |
| ALBEMARLE CORP | COM | 012653101 | PUT | 367,800 shares | $38,905,884 |
| LIVE NATION ENTERTAINMENT IN | COM | 538034109 | PUT | 213,000 shares | $36,060,900 |
| CLOUDFLARE INC | CL A COM | 18915M107 | — | 75,939 shares | $26,372,096 |
| MICROCHIP TECHNOLOGY INC. | COM | 595017104 | PUT | 316,500 shares | $24,614,205 |
| PG&E CORP | COM | 69331C108 | PUT | 1,913,000 shares | $23,434,250 |
| BOEING CO | COM | 097023105 | PUT | 125,200 shares | $23,293,460 |
| ON SEMICONDUCTOR CORP | COM | 682189105 | PUT | 298,500 shares | $22,945,695 |
| GLOBAL PMTS INC | COM | 37940X102 | PUT | 270,000 shares | $22,050,900 |
| EVERGY INC | NOTE 4.500%12/1 | 30034WAD8 | — | 15,800,000 principal | $20,251,590 |
| SEAGATE TECHNOLOGY HLDNGS PL | ORD SHS | G7997R103 | — | 21,086 shares | $19,448,461 |
| ALPHABET INC | CAP STK CL C | 02079K107 | PUT | 57,000 shares | $19,422,180 |
| TETRA TECH INC NEW | COM | 88162G103 | PUT | 582,700 shares | $19,199,965 |
| FIRSTENERGY CORP | COM | 337932107 | PUT | 407,100 shares | $17,639,643 |
| FIRSTENERGY CORP | NOTE 3.875% 1/1 | 337932AV9 | — | 16,600,000 principal | $17,158,564 |
| GUARDANT HEALTH INC | COM | 40131M109 | PUT | 94,800 shares | $16,908,528 |
| FLUOR CORP | COM | 343412102 | PUT | 339,400 shares | $16,250,472 |
| ITRON INC | COM | 465741106 | PUT | 179,700 shares | $15,515,298 |
| NEXTERA ENERGY INC | COM | 65339F101 | PUT | 196,400 shares | $14,875,336 |
| ALNYLAM PHARMACEUTICALS INC | COM | 02043Q107 | PUT | 59,700 shares | $14,730,378 |
| MP MATERIALS CORP | COM CL A | 553368101 | — | 301,468 shares | $14,256,422 |
| SOUTHERN CO | COM | 842587107 | PUT | 167,100 shares | $13,850,919 |
| SOFI TECHNOLOGIES INC | COM | 83406F102 | — | 784,273 shares | $12,328,772 |
| PG&E CORP | PFD CONV SER A | 69331C306 | — | 381,000 shares | $12,045,120 |
| WINNEBAGO INDS INC | COM | 974637100 | CALL | 451,000 shares | $11,892,870 |
| MICROCHIP TECHNOLOGY INC. | DEP SHS REPSTG | 595017302 | — | 175,500 shares | $11,732,175 |
| ON SEMICONDUCTOR CORP | COM | 682189105 | — | 141,288 shares | $10,860,809 |
| ENOVIS CORPORATION | COM | 194014502 | CALL | 553,000 shares | $10,103,310 |
| RIVIAN AUTOMOTIVE INC | NOTE 3.625%10/1 | 76954AAD5 | — | 10,000,000 principal | $10,080,000 |
| COMPASS INC | CL A | 20464U100 | PUT | 1,100,000 shares | $9,768,000 |
| UNITED STS OIL FD LP | UNITS | 91232N207 | PUT | 66,200 shares | $9,642,692 |
| TYLER TECHNOLOGIES INC | COM | 902252105 | PUT | 29,800 shares | $9,494,280 |
| RIVIAN AUTOMOTIVE INC | COM CL A | 76954A103 | PUT | 630,000 shares | $9,412,200 |
| COREWEAVE INC | COM CL A | 21873S108 | PUT | 90,000 shares | $7,840,800 |
| REALTY INCOME CORP | COM | 756109104 | PUT | 142,200 shares | $7,721,460 |
| KRANESHARES TRUST | CSI CHI INTERNET | 500767306 | CALL | 299,500 shares | $7,340,745 |
| SOFI TECHNOLOGIES INC | COM | 83406F102 | PUT | 457,600 shares | $7,193,472 |
| SPECTRUM BRANDS HOLDINGS INC | COM | 84790A105 | PUT | 90,100 shares | $7,163,851 |
| BLACKLINE INC | COM | 09239B109 | PUT | 268,100 shares | $7,112,693 |
| AKAMAI TECHNOLOGIES INC | COM | 00971T101 | — | 66,442 shares | $7,066,107 |
| ALNYLAM PHARMACEUTICALS INC | COM | 02043Q107 | — | 28,637 shares | $7,065,893 |
| ISHARES TR | 20 YR TR BD ETF | 464287432 | — | 90,000 shares | $7,000,200 |
| ISHARES TR | CHINA LG-CAP ETF | 464287184 | CALL | 187,200 shares | $6,368,544 |
| BOEING CO | DEP CONV PFD A | 097023204 | — | 100,000 shares | $5,901,500 |
| ALBEMARLE CORP | COM | 012653101 | — | 55,493 shares | $5,870,050 |
| ISHARES TR | 20 YR TR BD ETF | 464287432 | PUT | 75,000 shares | $5,833,500 |
| MP MATERIALS CORP | COM CL A | 553368101 | PUT | 123,100 shares | $5,821,399 |
| FLUOR CORP | COM | 343412102 | — | 119,530 shares | $5,723,096 |
| SYNAPTICS INC | COM | 87157D109 | PUT | 56,200 shares | $5,698,399 |
| SOUTHERN CO | COM | 842587107 | — | 66,734 shares | $5,531,581 |
| ZTO EXPRESS CAYMAN INC | SPONSORED ADS A | 98980A105 | PUT | 280,100 shares | $5,439,542 |
| TETRA TECH INC NEW | COM | 88162G103 | — | 164,358 shares | $5,415,596 |
| SPDR GOLD TR | GOLD SHS | 78463V107 | — | 14,000 shares | $5,331,760 |
| LUCID GROUP INC | COM NEW | 549498202 | PUT | 1,249,100 shares | $5,083,837 |
| ALPHABET INC | DEP SHS RP1/20 B | 02079K602 | — | 100,000 shares | $4,866,500 |
| ISHARES INC | MSCI STH KOR ETF | 464286772 | CALL | 25,000 shares | $4,569,500 |
| NOVANTA INC | UNIT 11/01/2028 | 67000B203 | — | 69,500 shares | $4,202,494 |
| NEXTERA ENERGY INC | UNIT 02/15/2029 | 65339F655 | — | 66,000 shares | $2,842,290 |
| PPL CORP | COM | 69351T106 | PUT | 84,400 shares | $2,775,916 |
| NEXTERA ENERGY INC | COM | 65339F101 | — | 35,878 shares | $2,717,400 |
| PPL CORP | UNIT 02/15/2029 | 69351T866 | — | 60,000 shares | $2,697,300 |
| KRANESHARES TRUST | CSI CHI INTERNET | 500767306 | — | 100,000 shares | $2,451,000 |
| GLOBAL PMTS INC | COM | 37940X102 | CALL | 29,700 shares | $2,425,599 |
| SELECT SECTOR SPDR TR | ST STR STAPL ETF | 81369Y308 | — | 30,000 shares | $2,418,000 |
| EVERGY INC | COM | 30034W106 | PUT | 30,300 shares | $2,376,732 |
| ALBEMARLE CORP | 7.25% DEP SHS A | 012653200 | — | 41,000 shares | $1,859,350 |
| HEWLETT PACKARD ENTERPRISE C | COM | 42824C109 | PUT | 28,500 shares | $1,820,865 |
| ARES MANAGEMENT CORPORATION | 6.75 SE B PFD | 03990B309 | — | 40,250 shares | $1,540,097 |
| NOVANTA INC | COM | 67000B104 | PUT | 9,600 shares | $1,365,024 |
| UPSTART HLDGS INC | COM | 91680M107 | — | 45,226 shares | $1,039,746 |
| ISHARES TR | CHINA LG-CAP ETF | 464287184 | — | 30,000 shares | $1,020,600 |
| ADVANCED ENERGY INDS | COM | 007973100 | — | 3,175 shares | $894,779 |
| ITRON INC | COM | 465741106 | — | 9,813 shares | $847,254 |
| ARES MANAGEMENT CORPORATION | CL A COM STK | 03990B101 | PUT | 5,000 shares | $580,850 |
| HEWLETT PACKARD ENTERPRISE C | COM | 42824C109 | — | 8,723 shares | $557,312 |
| PPL CORP | COM | 69351T106 | — | 9,909 shares | $325,907 |
| LUCID GROUP INC | COM NEW | 549498202 | — | 16,252 shares | $66,146 |