Portman Square Capital
Portman Square Capital reported 35 stocks worth $411M in its 13F filing for Q3 2026, filed Oct 15, 2026. Its largest holdings are W (18.6%), BABA (17.9%) and RDDT (16.6%). Compared with Q2 2026, the fund opened new positions in NET, MP and SOFI, added to W, RDDT and ON, trimmed BABA, STX and AKAM and sold out of ORCL, WDC and PCG.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  W Wayfair Inc | $76.5M | 18.6% | 746K | +337K (+82%) | 8 of 8 | |
| 2 |  BABA Alibaba Group Hldg Ltd F | $73.5M | 17.9% | 684K | −12K (−2%) | 4 of 8 | |
| 3 |  RDDT Reddit Inc | $68.2M | 16.6% | 479K | +165K (+53%) | 3 of 8 | |
| 4 |  NET Cloudflare Inc | $26.4M | 6.4% | 76K | New position | 6 of 8 | |
| 5 |  STX Seagate Technology Hldngs PL | $19.4M | 4.7% | 21K | −4,081 (−16%) | 4 of 8 | |
| 6 |  MP MP Materials | $14.3M | 3.5% | 301K | New position | 1 of 8 | |
| 7 |  SOFI Sofi Technologies Inc | $12.3M | 3.0% | 784K | New position | 3 of 8 | |
| 8 | PG&E CORP | $12M | 2.9% | 381K | No change | 5 of 8 | |
| 9 | MICROCHIP TECHNOLOGY INC. | $11.7M | 2.9% | 176K | −275K (−61%) | 7 of 8 | |
| 10 |  ON ON Semiconductor Corp | $10.9M | 2.6% | 141K | +106K (+303%) | 5 of 8 |
Positions at Sep 30, 2026, as reported. Change is against the fund's Q2 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q2 2026, gone in Q3 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
SOUTHERN CO | $61.8M | 1.2M |
 ORCL Oracle Corp | $8.5M | 58K |
 WDC Western Digital Corp | $6.7M | 10K |
NEXTERA ENERGY INC | $5.4M | 100K |
HEWLETT PACKARD ENTERPRISE C | $4.1M | 35K |
🔒 Free account: see all 10.
Options
valued at the underlying shares| Stock | Type | Value | Shares | Change |
|---|---|---|---|---|
 IREN Iren Ltd F | Put | $195M | 4.8M | +675,800 |
BABA Alibaba Group Hldg Ltd F | Put | $168M | 1.6M | +385,300 |
 SMTC Semtech Corp | Put | $135M | 756K | +715,800 |
W Wayfair Inc | Put | $101M | 988K | +418,900 |
RDDT Reddit Inc | Put | $88.2M | 619K | +207,200 |
🔒 Free account: see all 20.
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q3 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Oct 15, 2026 | 13F-HR | Q3 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →Portman Square Capital 13F FAQ
What does Portman Square Capital own?
Portman Square Capital reported 35 stocks worth $411M in its 13F filing for Q3 2026, filed Oct 15, 2026. Its largest holdings are W (18.6%), BABA (17.9%) and RDDT (16.6%). The table above lists every position in the filing (the top 10 without an account).
What did Portman Square Capital buy and sell in Q3 2026?
Compared with Q2 2026: 9 new positions, 10 added to, 14 trimmed and 10 sold out. New positions include NET, MP and SOFI. It sold all of ORCL, WDC and PCG.
When will Portman Square Capital file its next 13F?
Holdings as of Dec 31, 2026 are due by Feb 15, 2027. The filing appears on this page within minutes of reaching the SEC.
How much is Portman Square Capital's portfolio worth?
The Q3 2026 filing reports $411M in US stocks ($1.7B including options). That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.