CastleKnight Management
CastleKnight Management reported 400 stocks worth $2.7B in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are IREN (2.0%), CLS (1.9%) and NVDA (1.9%). Compared with Q1 2026, the fund opened new positions in NXPI, KEEL and LFTO, added to IREN, PBF and CYH, trimmed CLS, NVDA and MSGK and sold out of CHRD, DAL and OPTU.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  IREN Iren Ltd F | $54M | 2.0% | 1.2M | +375K (+47%) | 8 of 8 | |
| 2 |  CLS Celestica Inc | $52.9M | 1.9% | 145K | −40K (−22%) | 8 of 8 | |
| 3 |  NVDA Nvidia Corporation | $52.5M | 1.9% | 262K | −28K (−10%) | 8 of 8 | |
| 4 |  PBF Pbf Energy Inc | $51.2M | 1.9% | 1.1M | +86K (+8%) | 4 of 8 | |
| 5 |  CYH Community Health Sys Inc New | $44.7M | 1.6% | 13.4M | +717K (+6%) | 8 of 8 | |
| 6 |  INSW International Seaways Inc | $44.5M | 1.6% | 581K | +294K (+103%) | 5 of 8 | |
| 7 |  BTDR Bitdeer Technologies Group | $44M | 1.6% | 2.8M | +70K (+3%) | 7 of 8 | |
| 8 |  NXPI Nxp Semiconductors N V | $41.8M | 1.5% | 149K | New position | 1 of 8 | |
| 9 |  AMZN Amazon Com Inc | $40.5M | 1.5% | 170K | +58K (+52%) | 8 of 8 | |
| 10 |  GOOGL Alphabet Inc | $40.1M | 1.5% | 112K | +24K (+27%) | 8 of 8 |
Positions at Jun 30, 2026, as reported. Change is against the fund's Q1 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q1 2026, gone in Q2 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
BITFARMS LTD | $21.2M | 10.9M |
 CHRD Chord Energy Corporation | $7.6M | 53K |
 DAL Delta Air Lines Inc Del | $7.3M | 110K |
 OPTU Altice USA Inc | $7.1M | 5.4M |
 APA Apa Corporation | $6.8M | 161K |
🔒 Free account: see all 30.
Options
valued at the underlying shares| Stock | Type | Value | Shares | Change |
|---|---|---|---|---|
 QQQ Invesco Qqq TR | Call | $943M | 1.3M | +550,000 |
 IWM Ishares TR | Put | $715M | 2.4M | +730,000 |
IWM Ishares TR | Call | $688M | 2.3M | +900,000 |
 SPY Spdr S&P 500 ETF TR | Put | $620M | 830K | −1,000,000 |
QQQ Invesco Qqq TR | Put | $405M | 550K | +420,000 |
🔒 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 Q2 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Aug 14, 2026 | 13F-HR | Q2 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →CastleKnight Management 13F FAQ
What does CastleKnight Management own?
CastleKnight Management reported 400 stocks worth $2.7B in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are IREN (2.0%), CLS (1.9%) and NVDA (1.9%). The table above lists every position in the filing (the top 10 without an account).
What did CastleKnight Management buy and sell in Q2 2026?
Compared with Q1 2026: 71 new positions, 106 added to, 98 trimmed and 48 sold out. New positions include NXPI, KEEL and LFTO. It sold all of CHRD, DAL and OPTU.
When will CastleKnight Management file its next 13F?
Holdings as of Sep 30, 2026 are due by Nov 16, 2026. The filing appears on this page within minutes of reaching the SEC.
How much is CastleKnight Management's portfolio worth?
The Q2 2026 filing reports $2.7B in US stocks ($7.4B 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.