Arvin Capital Management LP In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 13, 2026), Arvin Capital Management LP reported 32 stock positions worth $534.0 million . Its top holding was Transalta (TAC) at 9.7% of the portfolio, followed by Vistra (VST, 6.1% ) and Gxo Logistics (GXO, 5.7% ). Compared with Q1 2026, it opened 20 new positions, sold out of 11, added to 5 and reduced 6. The biggest buy was a new position in Vistra (VST) and the biggest sale Amentum (AMTM, shares −80% ).
Location AUSTIN, TX
CIK 0001961738
Portfolio Value $534.0M (Q2 2026) Holdings 32 stocks · $534.0M Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q1 2026 TAC Transalta Corp. 3,742,183 $51.8M Reduce -16.6% VST Vistra Corp. 203,896 $32.3M New GXO Gxo Logistics Inc. 598,125 $30.3M Add +13.8% RKT Rocket Cos Inc. Class A 1,886,480 $29.7M New TMO Thermo Fisher Scientific Inc. 57,017 $28.6M Reduce -49.0% UNP Union Pacific Corp. 98,499 $26.8M New AKAM Akamai Technologies Inc. 195,698 $23.1M Add +44.8% TTMI TTM Technologies 117,631 $22.0M New WAT Waters Corp. 55,975 $21.0M Add +450.2% U Unity Software Inc. 698,280 $20.0M Add +216.8% CRS Carpenter Technology 31,801 $19.6M Reduce -31.3% KGS Kodiak Gas Services Inc. 246,609 $18.5M New UAL United Airlines Holdings Inc. 135,758 $18.5M New HUBG Hub Group Inc. Class A 402,416 $17.6M New RBA RB Global Inc. 147,635 $17.2M Reduce -50.9% Q Qnity Electronics Inc. 101,603 $16.6M Reduce -22.6% W Wayfair Inc. Class A 159,515 $14.7M New RIG Transocean Ltd. 2,982,831 $14.6M Add +1538.9% RRX Regal Rexnord Corp. 59,447 $14.2M New SAIA Saia Inc. 28,522 $12.0M New TSEM Tower Semiconductor Ltd. 44,135 $11.5M No change ICLR Icon PLC filed as ICON PUB LTD CO 64,820 $11.3M New KNX Knight-Swift Transportation 117,807 $9.2M New AMTM Amentum Holdings Inc. 416,705 $8.6M Reduce -79.9% WOLF Wolfspeed Inc. 168,958 $8.2M New STM Stmicroelectronics NV-NY SHS 106,692 $8.0M New RDDT Reddit Inc. Class A 42,549 $7.4M New GDS GDS Holdings Ltd. - ADR filed as GDS HLDGS LTD 233,952 $7.0M New STX Seagate Technology Holdings 6,928 $6.7M New TLN Talen Energy Corp. 11,099 $4.3M New DCO Ducommun Inc. 13,469 $2.5M New BABA Alibaba Group Holding-SP ADR 3,328 $319K New
Options reported separately and not counted above: MSFT calls ($38.8M), QQQ puts ($29.5M), UNP calls ($23.9M), EFX calls ($19.0M), VST calls ($19.0M), MTUM puts ($17.1M), W calls ($13.9M), ICLR calls ($12.2M), PDD puts ($10.3M), SE calls ($9.6M), AMTM calls ($9.3M), SMH puts ($7.9M), and 7 more.
Portfolio Sells Q1 2026 → Q2 2026 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q1 2026 % Of Portfolio Change To Portfolio ▲ AMTM Amentum Holdings Inc. Reduce -79.9% 1.61% −11.01 DHR Danaher Corp. Sold out 0.00% −8.22 TMO Thermo Fisher Scientific Inc. Reduce -49.0% 5.35% −7.48 OPCH Option Care Health Inc. Sold out 0.00% −4.40 TAC Transalta Corp. Reduce -16.6% 9.69% −4.05 RBA RB Global Inc. Reduce -50.9% 3.22% −3.51 CEG Constellation Energy Sold out 0.00% −3.41 AMZN Amazon.com Inc. Sold out 0.00% −2.81 FICO Fair Isaac Corp. Sold out 0.00% −2.80 ACVA Acv Auctions Inc. Class A Sold out 0.00% −2.64 TECH Bio-Techne Corp. Sold out 0.00% −2.50 AL Sumisho Air Lease Corp. Sold out 0.00% −2.29 META Meta Platforms Inc. Class A Sold out 0.00% −1.50 MSFT Microsoft Corp. Sold out 0.00% −1.06 SOLS Solstice Adv Materials Inc. Sold out 0.00% −0.72 CRS Carpenter Technology Reduce -31.3% 3.67% −0.59 Q Qnity Electronics Inc. Reduce -22.6% 3.11% −0.43
Portfolio Buys Q1 2026 → Q2 2026 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q1 2026 % Of Portfolio Change To Portfolio ▼ VST Vistra Corp. New 6.06% +6.06 RKT Rocket Cos Inc. Class A New 5.56% +5.56 UNP Union Pacific Corp. New 5.02% +5.02 TTMI TTM Technologies New 4.12% +4.12 KGS Kodiak Gas Services Inc. New 3.47% +3.47 UAL United Airlines Holdings Inc. New 3.46% +3.46 HUBG Hub Group Inc. Class A New 3.30% +3.30 WAT Waters Corp. Add +450.2% 3.93% +3.22 W Wayfair Inc. Class A New 2.76% +2.76 RRX Regal Rexnord Corp. New 2.65% +2.65 U Unity Software Inc. Add +216.8% 3.74% +2.61 RIG Transocean Ltd. Add +1538.9% 2.73% +2.45 SAIA Saia Inc. New 2.25% +2.25 ICLR Icon PLC New 2.11% +2.11 KNX Knight-Swift Transportation New 1.72% +1.72 WOLF Wolfspeed Inc. New 1.53% +1.53 STM Stmicroelectronics NV-NY SHS New 1.50% +1.50 RDDT Reddit Inc. Class A New 1.38% +1.38 GDS GDS Holdings Ltd. - ADR New 1.32% +1.32 STX Seagate Technology Holdings New 1.25% +1.25 TLN Talen Energy Corp. New 0.80% +0.80 AKAM Akamai Technologies Inc. Add +44.8% 4.33% +0.70 DCO Ducommun Inc. New 0.47% +0.47 BABA Alibaba Group Holding-SP ADR New 0.06% +0.06 GXO Gxo Logistics Inc. Add +13.8% 5.68% −0.69
Options Activity Q1 2026 → Q2 2026 Security Type Change vs Q1 2026 Underlying Shares Value ▼ EFA iShares MSCI Eafe ETF put Sold out 480,000 $46.6Mbefore exit MSFT Microsoft Corp. call Reduce -49.0% 104,000 $38.8M QQQ Invesco QQQ Trust Series 1 put Add +33.3% 40,000 $29.5M TMO Thermo Fisher Scientific Inc. call Sold out 50,000 $24.6Mbefore exit UNP Union Pacific Corp. call Add +8700.0% 88,000 $23.9M EWT iShares MSCI Taiwan ETF put Sold out 312,800 $22.2Mbefore exit EFX Equifax Inc. call New 120,000 $19.0M VST Vistra Corp. call New 120,000 $19.0M CEG Constellation Energy call Sold out 65,000 $18.2Mbefore exit META Meta Platforms Inc. Class A call Sold out 30,000 $17.2Mbefore exit MTUM iShares MSCI USA Momentum Fa put New 50,000 $17.1M RKT Rocket Cos Inc. Class A call Sold out 1,120,000 $16.0Mbefore exit W Wayfair Inc. Class A call New 150,000 $13.9M ON On Semiconductor call Sold out 200,000 $12.4Mbefore exit ICLR Icon PLC call New 70,000 $12.2M SE Sea Ltd.-ADR call New 100,000 $9.6M AMTM Amentum Holdings Inc. call Reduce -24.6% 450,000 $9.3M GXO Gxo Logistics Inc. call Sold out 178,400 $9.3Mbefore exit PINS Pinterest Inc. Class A call Sold out 500,000 $9.2Mbefore exit NVDA Nvidia Corp. call Sold out 50,000 $8.7Mbefore exit SMH Vaneck Semiconductor ETF put Reduce -80.0% 12,000 $7.9M DHR Danaher Corp. call Sold out 40,000 $7.6Mbefore exit IWM iShares Russell 2000 ETF put New 24,000 $7.2M WOLF Wolfspeed Inc. call Sold out 400,000 $6.5Mbefore exit FICO Fair Isaac Corp. call Sold out 6,000 $6.4Mbefore exit ENTG Entegris Inc. put Sold out 50,000 $5.9Mbefore exit U Unity Software Inc. call Sold out 234,000 $5.1Mbefore exit TAC Transalta Corp. call New 330,000 $4.6M AMTM Amentum Holdings Inc. put Sold out 150,000 $3.9Mbefore exit BABA Alibaba Group Holding-SP ADR call New 30,000 $2.9M GDS GDS Holdings Ltd. - ADR call New 65,000 $2.0M COMP Compass Inc. Class A call Sold out 241,900 $1.8Mbefore exit AKAM Akamai Technologies Inc. call Reduce -90.8% 14,700 $1.7M AMZN Amazon.com Inc. call Sold out 8,000 $1.7Mbefore exit
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 32 $534.0M TAC, VST, GXO, RKT, TMO Q1 2026 23 $427.9M TAC, TMO, AMTM, DHR, RBA Q4 2025 28 $464.2M TAC, AMTM, TMO, DHR, GXO Q3 2025 22 $432.0M TAC, TMO, AMTM, DHR, CRS Q2 2025 23 $348.9M AMTM, TAC, DHR, TMO, AMZN Q1 2025 22 $270.9M AMTM, CRS, TAC, TSEM, OPCH Q4 2024 27 $249.2M AMTM, CRS, AVTR, STX, AMZN Q3 2024 21 $236.9M AMZN, AVTR, STX, CRS, VAL Q2 2024 21 $232.5M TRU, LW, VAL, STX, JBI Q1 2024 20 $216.5M FIS, RIG, TRU, JBI, TECK