CIK: 0001961738
Total reported value
$819.1M
Reporting period: 2026-03-31 · Number of holdings: 50
Arvin Capital Management LP disclosed 50 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $819.1M and a quarterly turnover rate of 92.3%.
Browse other institutions with $100M to $1B AUMBrowse other institutions starting with "A"
Arvin Capital Management LP's disclosed holdings carry a Herfindahl concentration index of 0.052 — mathematically equivalent to about 19 equally-sized positions, well below its 50 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.97), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 2.6 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Trim AMZN
-51.7% -$17.7M
Trim TECH
-46.8% -$11.9M
Trim TAC
+6.3% $5.4M
Add TMO
+138.5% $40.2M
Trim DHR
+30.0% $3.0M
Trim ACVA
+15.8% -$7.1M
Showing top 37 holdings (of 50 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | MSFT | Microsoft CORP | Stock-Tech | 9.78% | +9.78% | NEW | |
| 2 | TMO | Thermo Fisher Scientific INC | Stock-Healthcare | 9.70% | +2.30% | +138.49% | |
| 3 | AMTM | Amentum Holdings INC | Stock-Industrials | 8.97% | -0.87% | +56.45% | |
| 4 | TAC | Transalta CORP | Stock-Other | 7.18% | -2.87% | +6.32% | |
| 5 | EFA | Ishares Msci Eafe ETF | ETF-Other | 5.69% | +5.69% | NEW | |
| 6 | DHR | Danaher CORP | Stock-Healthcare | 5.22% | -2.26% | +29.98% | |
| 7 | GXO | Gxo Logistics INC | Stock-Industrials | 4.46% | -0.57% | +38.78% | |
| 8 | AKAM | Akamai Technologies INC | Stock-Tech | 4.14% | +4.14% | NEW | |
| 9 | CEG | Constellation Energy | Stock-Utilities | 4.00% | +1.39% | +199.03% | |
| 10 | RBA | Rb Global INC | Stock-Industrials | 3.52% | +0.50% | +92.63% | |
| 11 | META | Meta Platforms Inc-class A | Stock-Comm Services | 2.88% | +2.88% | NEW | |
| 12 | SMH | Vaneck Semiconductor ETF | ETF-Other | 2.81% | +2.81% | NEW | |
| 13 | EWT | Ishares Msci Taiwan ETF | ETF-Other | 2.71% | +2.71% | NEW | |
| 14 | OPCH | Option Care Health INC | Stock-Healthcare | 2.30% | -0.63% | +43.16% | |
| 15 | FICO | Fair Isaac CORP | Stock-Tech | 2.24% | +2.24% | NEW | |
| 16 | CRS | Carpenter Technology | Stock-Industrials | 2.23% | -1.86% | -32.85% | |
| 17 | QQQ | Invesco Qqq Trust Series 1 | ETF-Tech | 2.11% | -1.36% | — | |
| 18 | RKT | Rocket Cos Inc-class A | Stock-Financials | 1.95% | +1.95% | NEW | |
| 19 | Q | Qnity Electronics INC | Stock-Tech | 1.85% | +0.08% | +13.83% | |
| 20 | PDD | Pdd Holdings INC | Stock-Consumer Disc | 1.69% | +1.69% | NEW | |
| 21 | AMZN | Amazon.com INC | Stock-Consumer Disc | 1.67% | -4.24% | -51.71% | |
| 22 | ON | On Semiconductor | Stock-Tech | 1.51% | +1.51% | NEW | |
| 23 | ACVA | Acv Auctions Inc-a | Stock-Other | 1.38% | -2.09% | +15.80% | |
| 24 | TECH | Bio-techne CORP | Stock-Healthcare | 1.30% | -2.96% | -46.84% | |
| 25 | U | Unity Software INC | Stock-Tech | 1.22% | +0.32% | +318.45% | |
| 26 | AL | Air Lease CORP | Stock-Other | 1.20% | — | — | |
| 27 | PINS | Pinterest Inc- Class A | Stock-Comm Services | 1.12% | +1.12% | NEW | |
| 28 | NVDA | Nvidia CORP | Stock-Tech | 1.06% | -0.17% | +42.45% | |
| 29 | TSEM | Tower Semiconductor Ltd. | Stock-Tech | 0.95% | -0.03% | — | |
| 30 | WOLF | Wolfspeed INC | Stock-Other | 0.80% | +0.80% | NEW | |
| 31 | ENTG | Entegris INC | Stock-Tech | 0.72% | +0.72% | NEW | |
| 32 | NFLX | Netflix INC | Stock-Comm Services | 0.53% | +0.53% | NEW | |
| 33 | SOLS | Solstice Adv Materials INC | Stock-Materials | 0.38% | +0.38% | NEW | |
| 34 | WAT | Waters CORP | Stock-Healthcare | 0.37% | +0.37% | NEW | |
| 35 | COMP | Compass INC - Class A | Stock-Real Estate | 0.22% | +0.22% | NEW | |
| 36 | RIG | Transocean Ltd. | Stock-Energy | 0.15% | +0.15% | NEW | |
| 37 | UNP | Union Pacific CORP | Stock-Industrials | 0.03% | +0.03% | NEW |
Performance for Q3 2026
-1.6%
Performance Last 4 Quarters
+1%
Based on 55% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 50 | $819.1M | 92 | |
| 2025-12-31 | 40 | $531.0M | 51 | |
| 2025-09-30 | 36 | $553.8M | 100 | |
| 2025-06-30 | 40 | $488.4M | 0 | |
| 2025-03-31 | 46 | $500.9M | 0 | |
| 2024-12-31 | 41 | $356.9M | 0 | |
| 2024-09-30 | 33 | $310.9M | 0 | |
| 2024-06-30 | 29 | $317.1M | 0 | |
| 2024-03-31 | 28 | $267.3M | 0 | |
| 2023-12-31 | 29 | $226.6M | 0 |
Arvin Capital Management LP's most significant position changes for 2026-03-31: New buy: Microsoft CORP (MSFT); New buy: Ishares Msci Eafe ETF (EFA); New buy: Akamai Technologies INC (AKAM); Sold out: Synopsys INC (SNPS); Sold out: GE Healthcare Technology (GEHC).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | TMO | Thermo Fisher Scientific INC | +2.3% | +138.49% | Add |
| 2 | CEG | Constellation Energy | +1.4% | +199.03% | Add |
| 3 | RBA | Rb Global INC | +0.5% | +92.63% | Add |
| 4 | U | Unity Software INC | +0.3% | +318.45% | Add |
| 5 | Q | Qnity Electronics INC | +0.1% | +13.83% | Add |
| 6 | TSEM | Tower Semiconductor Ltd. | 0% | — | Unchanged |
| 7 | NVDA | Nvidia CORP | -0.2% | +42.45% | Add |
| 8 | GXO | Gxo Logistics INC | -0.6% | +38.78% | Add |
| 9 | OPCH | Option Care Health INC | -0.6% | +43.16% | Add |
| 10 | AMTM | Amentum Holdings INC | -0.9% | +56.45% | Add |
| 11 | QQQ | Invesco Qqq Trust Series 1 | -1.4% | — | Unchanged |
| 12 | CRS | Carpenter Technology | -1.9% | -32.85% | Trim |
| 13 | ACVA | Acv Auctions Inc-a | -2.1% | +15.80% | Add |
| 14 | DHR | Danaher CORP | -2.3% | +29.98% | Add |
| 15 | TAC | Transalta CORP | -2.9% | +6.32% | Add |
| 16 | TECH | Bio-techne CORP | -3% | -46.84% | Trim |
| 17 | AMZN | Amazon.com INC | -4.2% | -51.71% | Trim |
| 18 | MSFT | Microsoft CORP | — | NEW | New buy |
| 19 | EFA | Ishares Msci Eafe ETF | — | NEW | New buy |
| 20 | AKAM | Akamai Technologies INC | — | NEW | New buy |
| 21 | SNPS | Synopsys INC | — | EXIT | Sold out |
| 22 | GEHC | GE Healthcare Technology | — | EXIT | Sold out |
| 23 | META | Meta Platforms Inc-class A | — | NEW | New buy |
| 24 | SMH | Vaneck Semiconductor ETF | — | NEW | New buy |
| 25 | EWT | Ishares Msci Taiwan ETF | — | NEW | New buy |
| 26 | FICO | Fair Isaac CORP | — | NEW | New buy |
| 27 | RKT | Rocket Cos Inc-class A | — | NEW | New buy |
| 28 | EFX | Equifax INC | — | EXIT | Sold out |
| 29 | PDD | Pdd Holdings INC | — | NEW | New buy |
| 30 | FND | Floor & Decor Holdings Inc-a | — | EXIT | Sold out |
| 31 | ON | On Semiconductor | — | NEW | New buy |
| 32 | ICLR | ICON Public Limited Company | — | EXIT | Sold out |
| 33 | PINS | Pinterest Inc- Class A | — | NEW | New buy |
| 34 | IQV | Iqvia Holdings INC | — | EXIT | Sold out |
| 35 | CMG | Chipotle Mexican Grill INC | — | EXIT | Sold out |
| 36 | ITRI | Itron INC | — | EXIT | Sold out |
| 37 | WOLF | Wolfspeed INC | — | NEW | New buy |
| 38 | ENTG | Entegris INC | — | NEW | New buy |
| 39 | KBR | Kbr INC | — | EXIT | Sold out |
| 40 | NFLX | Netflix INC | — | NEW | New buy |
| 41 | BABA | Alibaba Group Holding-sp Adr | — | EXIT | Sold out |
| 42 | SOLS | Solstice Adv Materials INC | — | NEW | New buy |
| 43 | WAT | Waters CORP | — | NEW | New buy |
| 44 | ECHO | Echostar Corp-a | — | EXIT | Sold out |
| 45 | BE | Bloom Energy Corp- A | — | EXIT | Sold out |
| 46 | COMP | Compass INC - Class A | — | NEW | New buy |
| 47 | SRAD | Sportradar Group AG | — | EXIT | Sold out |
| 48 | RIG | Transocean Ltd. | — | NEW | New buy |
| 49 | CCOI | Cogent Communications Holdin | — | EXIT | Sold out |
| 50 | UNP | Union Pacific CORP | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-14 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-13 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-12 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-13 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-13 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-14 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-13 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-14 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-13 | 13F-HR | View on EDGAR |
Institutions with a similar AUM
CIK 0001512611
Total reported value
$819.2M
108 stks
2026-03-31
AUM within 0.0% of this institution
CIK 0001579984
Total reported value
$819.3M
145 stks
2017-09-30
Stale — no recent filing
AUM within 0.0% of this institution
CIK 0001512601
Total reported value
$819.4M
312 stks
2026-03-31
AUM within 0.0% of this institution
Institutions with overlapping top holdings
CIK 0000036966
Total reported value
$2.4B
2,094 stks
2026-03-31
2 of the top 5 holdings overlap, including Ishares Msci Eafe ETF
CIK 0000059951
Total reported value
$850.7M
366 stks
2022-12-31
Stale — no recent filing
2 of the top 5 holdings overlap, including Microsoft CORP
CIK 0000315498
Total reported value
$3.9B
602 stks
2022-12-31
Stale — no recent filing
2 of the top 5 holdings overlap, including Microsoft CORP