Arosa Capital Management
Arosa Capital Management reported 22 stocks worth $115M in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are VICR (41.4%), MPWR (14.5%) and POWI (9.1%). Compared with Q1 2026, the fund opened new positions in POWI, Q and CEVA, added to MPWR, trimmed VICR, WMB and BW and sold out of ECG, CCJ and NXT.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  VICR Vicor Corp | $47.5M | 41.4% | 125K | −32K (−20%) | 3 of 8 | |
| 2 |  MPWR Monolithic Pwr Sys Inc | $16.6M | 14.5% | 12K | +7,500 (+167%) | 2 of 8 | |
| 3 |  POWI Power Integrations Inc | $10.5M | 9.1% | 125K | New position | 2 of 8 | |
| 4 |  Q Qnity Electronics Inc | $8.2M | 7.1% | 50K | New position | 1 of 8 | |
| 5 |  WMB Williams Cos Inc | $4.5M | 3.9% | 60K | −15K (−20%) | 6 of 8 | |
| 6 |  BW BABCOCK & WILCOX ENTERPRISES | $3.9M | 3.4% | 275K | −300K (−52%) | 2 of 8 | |
| 7 |  ROG Rogers Corp | $3.6M | 3.1% | 22K | −22K (−50%) | 2 of 8 | |
| 8 |  CEVA Ceva Inc | $3.3M | 2.9% | 70K | New position | 1 of 8 | |
| 9 |  SEI Solaris Energy Infras Inc | $3.2M | 2.8% | 40K | −20K (−33%) | 2 of 8 | |
| 10 |  AMBA Ambarella Inc | $3M | 2.6% | 35K | New position | 1 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 |
|---|---|---|
 ECG Everus Constr Group | $10.4M | 88K |
 CCJ Cameco Corp F | $7.1M | 65K |
 NXT Nextracker Inc | $6M | 50K |
 FSLR First Solar Inc | $6M | 31K |
 PWR Quanta Svcs Inc | $5.2M | 9,418 |
🔒 Free account: see all 30.
Options
valued at the underlying shares| Stock | Type | Value | Shares | Change |
|---|---|---|---|---|
 SPY Spdr S&P 500 ETF TR | Put | $59.7M | 80K | −160,000 |
 SMH Vaneck ETF Trust | Put | $45.9M | 70K | +70,000 |
VICR Vicor Corp | Call | $41.8M | 110K | +10,000 |
 ENPH Enphase Energy Inc | Call | $32.7M | 665K | +565,000 |
 IREN Iren Ltd F | Call | $32.5M | 710K | −245,000 |
🔒 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 →Arosa Capital Management 13F FAQ
What does Arosa Capital Management own?
Arosa Capital Management reported 22 stocks worth $115M in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are VICR (41.4%), MPWR (14.5%) and POWI (9.1%). The table above lists every position in the filing (the top 10 without an account).
What did Arosa Capital Management buy and sell in Q2 2026?
Compared with Q1 2026: 6 new positions, 1 added to, 12 trimmed and 33 sold out. New positions include POWI, Q and CEVA. It sold all of ECG, CCJ and NXT.
When will Arosa Capital 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 Arosa Capital Management's portfolio worth?
The Q2 2026 filing reports $115M in US stocks ($561M 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.