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Winton Group Ltd

The positions Winton Group Ltd reported on its Form 13F for Q2 2026, the quarter ending 30 Jun 2026, filed on 7 Aug 2026. Every figure below is the filing’s own: US-listed long equity, valued at the quarter end, with the change measured against the same manager’s previous filing.

Reported book
$3.1bn
+$237m on Q1 2026
Positions
1,137
73 new, 100 sold out
Top ten weight
17%
Spread across the book
Quarter
Q2 2026
Filed 7 Aug 2026
Read the Q2 2026 filing on sec.gov CIK 0001612063 · Quant / systematic · United Kingdom
Reported book by quarter
$0$1.5bn$3.1bnQ3 24: $1.4bn$1.4bnQ3 24Q4 24: $1.5bn$1.5bnQ4 24Q1 25: $1.6bn$1.6bnQ1 25Q2 25: $2.0bn$2.0bnQ2 25Q3 25: $2.7bn$2.7bnQ3 25Q4 25: $2.9bn$2.9bnQ4 25Q1 26: $2.9bn$2.9bnQ1 26Q2 26: $3.1bn$3.1bnQ2 26
Largest positions, share of the book
Berkshire Hathaway Inc Del: 5.3%Berkshire Hathaway Inc …5.3%iShares TR: 2.5%iShares TR2.5%Vanguard Scottsdale FDS: 1.6%Vanguard Scottsdale FDS1.6%Invesco Exch Traded FD TR II: 1.4%Invesco Exch Traded FD …1.4%Solstice Advanced Matls Inc: 1.4%Solstice Advanced Matls…1.4%Kla Corp (KLAC): 1.3%Kla Corp (KLAC)1.3%Masco Corp: 1.0%Masco Corp1.0%Cme Group Inc (CME): 0.9%Cme Group Inc (CME)0.9%CSX Corp (CSX): 0.9%CSX Corp (CSX)0.9%Incyte Corp (INCY): 0.9%Incyte Corp (INCY)0.9%

Opened this quarter

A new position is the clearest thing a filing says. Somebody argued for it recently, and it is the easiest question to be ready for.

  • iShares TR$78m · 2.5%
  • Vanguard Scottsdale FDS$50m · 1.6%
  • Crowdstrike HLDGS Inc$29m · 0.9%
  • Public Storage$28m · 0.9%
  • Carvana Co (CVNA)$23m · 0.7%
  • Mueller Inds Inc$20m · 0.7%
  • Wells Fargo & Co$16m · 0.5%
  • Ciena Corp (CIEN)$15m · 0.5%
  • Spotify Technology S A (SPOT)$14m · 0.5%
  • Thermo Fisher Scientific Inc (TMO)$14m · 0.5%
  • Humana Inc (HUM)$14m · 0.5%
  • Caesars Entertainment Inc Ne$14m · 0.5%
  • and 61 more, in the table below.

Sold out of this quarter

Exits are valued at what the position was worth in the previous filing, because by this one it is gone.

  • Electronic Arts Inc$21m held before
  • Hologic Inc$21m held before
  • Masimo Corp$20m held before
  • Old Dominion Freight Line In$17m held before
  • Palantir Technologies Inc (PLTR)$16m held before
  • Nu HLDGS LTD$16m held before
  • Agilent Technologies Inc (A)$15m held before
  • Philip Morris Intl Inc$15m held before
  • Target Corp$13m held before
  • Medtronic PLC (MDT)$12m held before
  • Sherwin Williams Co (SHW)$10m held before
  • Apa Corporation (APA)$9.1m held before
  • and 88 more.

Every reported position, Q2 2026

200 positions, sorted by weight · page 2 of 2

PositionWeight ↑ValueSharesChange on the quarterAction
Lyondellbasell Industries NV
SHS - A - · CUSIP N53745100
0.2%$7.1m134,133
+$3.9m
+95,236 shares
Added
Legence Corp (LGN)
CL A · CUSIP 52476L109
0.2%$7.1m83,300
+$5.4m
+52,904 shares
Added
Progyny Inc (PGNY)
COM · CUSIP 74340E103
0.2%$7.3m251,834
+$6.1m
+183,163 shares
Added
Arista Networks Inc (ANET)
COM SHS · CUSIP 040413205
0.2%$7.4m43,593
+$1.9m
-1,480 shares
Trimmed
Pinnacle Finl Partners Inc
COM · CUSIP 72348N109
0.2%$7.5m73,864
+$1.6m
+6,299 shares
Added
Performance Food Group Co (PFGC)
COM · CUSIP 71377A103
0.2%$7.5m66,733No earlier filingNew
Ralliant Corp (RAL)
COM · CUSIP 750940108
0.2%$7.5m101,411
+$4.4m
+27,704 shares
Added
Viking Holdings LTD (VIK)
ORD SHS · CUSIP G93A5A101
0.2%$7.5m71,985No earlier filingNew
Acadia Healthcare Company In
COM · CUSIP 00404A109
0.2%$7.5m255,451
+$1.6m
+3,449 shares
Added
Seagate Technology Hldngs PL
ORD SHS · CUSIP G7997R103
0.3%$8.0m8,256
+$6.6m
+4,865 shares
Added
Hut 8 Corp (HUT)
COM · CUSIP 44812J104
0.3%$8.2m70,700No earlier filingNew
Versigent PLC (VGNT)
ORDINARY SHARES · CUSIP G9600F104
0.3%$8.4m199,883No earlier filingNew
Tesla Inc (TSLA)
COM · CUSIP 88160R101
0.3%$8.6m20,455
+$8.4m
+19,879 shares
Added
Siriusxm Holdings Inc
COMMON STOCK · CUSIP 829933100
0.3%$8.8m298,563
+$8.5m
+282,863 shares
Added
Phillips 66 (PSX)
COM · CUSIP 718546104
0.3%$8.9m52,543No earlier filingNew
Catalyst Pharmaceuticals Inc
COM · CUSIP 14888U101
0.3%$9.0m287,736
+$7.4m
+220,016 shares
Added
Shopify Inc (SHOP)
CL A SUB VTG SHS · CUSIP 82509L107
0.3%$9.1m79,492
-$6.6m
-52,641 shares
Trimmed
Dexcom Inc (DXCM)
COM · CUSIP 252131107
0.3%$9.2m136,493
+$6.6m
+94,631 shares
Added
Marathon Pete Corp
COM · CUSIP 56585A102
0.3%$9.2m36,076No earlier filingNew
Howmet Aerospace Inc (HWM)
COM · CUSIP 443201108
0.3%$9.3m34,574
-$1.9m
-14,049 shares
Trimmed
Piper Sandler Companies (PIPR)
COM NEW · CUSIP 724078209
0.3%$9.4m130,560
-$200k
+4,112 shares
Added
Bloom Energy Corp (BE)
COM CL A · CUSIP 093712107
0.3%$9.4m31,200No earlier filingNew
Dollar Tree Inc (DLTR)
COM · CUSIP 256746108
0.3%$9.5m78,260No earlier filingNew
Digital Rlty TR Inc
COM · CUSIP 253868103
0.3%$9.5m52,800No earlier filingNew
Tower Semiconductor LTD (TSEM)
SHS NEW · CUSIP M87915274
0.3%$9.6m36,800No earlier filingNew
Stonex Group Inc (SNEX)
COM · CUSIP 861896108
0.3%$9.7m81,529
+$3.7m
+7,078 shares
Added
Trex Inc (TREX)
COM · CUSIP 89531P105
0.3%$9.7m194,459
+$8.4m
+159,039 shares
Added
Stryker Corporation (SYK)
COM · CUSIP 863667101
0.3%$9.8m31,200
+$5.3m
+17,585 shares
Added
Brightspring Health SVCS Inc
COM · CUSIP 10950A106
0.3%$10m144,400No earlier filingNew
Core Natural Resources Inc (CNR)
COM SHS · CUSIP 218937100
0.3%$10m127,600
-$3.0m
+1,839 shares
Added
Merit Med Sys Inc
COM · CUSIP 589889104
0.3%$10m147,589
-$700k
-11,194 shares
Trimmed
Epam Sys Inc
COM · CUSIP 29414B104
0.3%$10m131,440
-$3.2m
+31,134 shares
Added
Vertiv Holdings Co (VRT)
COM CL A · CUSIP 92537N108
0.3%$11m31,484No earlier filingNew
Cardinal Health Inc (CAH)
COM · CUSIP 14149Y108
0.3%$11m44,405
+$8.7m
+35,432 shares
Added
Fidelity Wise Origin Bitcoin
SHS · CUSIP 315948109
0.4%$11m218,078
-$1.7m
0 shares
Held
Select Sector SPDR TR
ST STR ENERG ETF · CUSIP 81369Y506
0.4%$11m210,863No earlier filingNew
Jabil Inc (JBL)
COM · CUSIP 466313103
0.4%$11m29,258No earlier filingNew
American Intl Group Inc
COM NEW · CUSIP 026874784
0.4%$11m152,100
+$11m
+145,940 shares
Added
Ge Healthcare Technologies I
COMMON STOCK · CUSIP 36266G107
0.4%$11m178,600No earlier filingNew
Citigroup Inc
COM NEW · CUSIP 172967424
0.4%$11m81,738
+$8.1m
+52,280 shares
Added
Select Sector SPDR TR
ST STR SVC ETF · CUSIP 81369Y852
0.4%$12m110,713No earlier filingNew
Silicon Laboratories Inc (SLAB)
COM · CUSIP 826919102
0.4%$12m55,098
+$800k
+1,272 shares
Added
Transdigm Group Inc (TDG)
COM · CUSIP 893641100
0.4%$12m9,180
+$3.9m
+2,015 shares
Added
Walmart Inc (WMT)
COM · CUSIP 931142103
0.4%$12m109,344No earlier filingNew
Dicks Sporting Goods Inc
COM · CUSIP 253393102
0.4%$13m55,167
+$12m
+51,871 shares
Added
Coherent Corp (COHR)
COM · CUSIP 19247G107
0.4%$13m31,829
+$12m
+27,669 shares
Added
Goldman Sachs Group Inc
COM · CUSIP 38141G104
0.4%$13m12,600No earlier filingNew
McDonald's Corp (MCD)
COM · CUSIP 580135101
0.4%$13m47,960No earlier filingNew
Servicenow Inc (NOW)
COM · CUSIP 81762P102
0.4%$13m132,411
+$3.7m
+41,653 shares
Added
Doordash Inc (DASH)
CL A · CUSIP 25809K105
0.4%$14m73,364
+$13m
+66,606 shares
Added
Halliburton Co (HAL)
COM · CUSIP 406216101
0.4%$14m408,281
+$11m
+335,581 shares
Added
Ultra Clean HLDGS Inc
COM · CUSIP 90385V107
0.4%$14m97,320
+$7.4m
-6,920 shares
Trimmed
Uber Technologies Inc (UBER)
COM · CUSIP 90353T100
0.4%$14m192,400
+$6.1m
+84,250 shares
Added
SanDisk Corp (SNDK)
COM · CUSIP 80004C200
0.5%$14m6,146
+$14m
+5,531 shares
Added
Caesars Entertainment Inc Ne
COM · CUSIP 12769G100
0.5%$14m467,000No earlier filingNew
Humana Inc (HUM)
COM · CUSIP 444859102
0.5%$14m35,602No earlier filingNew
Thermo Fisher Scientific Inc (TMO)
COM · CUSIP 883556102
0.5%$14m28,360No earlier filingNew
Cameco Corp (CCJ)
COM · CUSIP 13321L108
0.5%$14m140,300
+$2.7m
+33,153 shares
Added
Spotify Technology S A (SPOT)
SHS · CUSIP L8681T102
0.5%$14m31,421No earlier filingNew
Automatic Data Processing In
COM · CUSIP 053015103
0.5%$14m64,440
+$10m
+42,429 shares
Added
Medline Inc (MDLN)
COM CL A · CUSIP 58507V107
0.5%$15m367,057
+$13m
+340,127 shares
Added
Gxo Logistics Incorporated (GXO)
COMMON STOCK · CUSIP 36262G101
0.5%$15m288,330
+$100k
+8,721 shares
Added
Mercadolibre Inc (MELI)
COM · CUSIP 58733R102
0.5%$15m8,620
+$1.0m
+730 shares
Added
Take-two Interactive Softwar
COM · CUSIP 874054109
0.5%$15m58,676
+$14m
+56,442 shares
Added
Ciena Corp (CIEN)
COM NEW · CUSIP 171779309
0.5%$15m30,240No earlier filingNew
Kroger Co (KR)
COM · CUSIP 501044101
0.5%$15m267,802
-$7.3m
-39,123 shares
Trimmed
SLB Limited (SLB)
COM STK · CUSIP 806857108
0.5%$15m323,597
+$14m
+293,947 shares
Added
Berkshire Hathaway Inc Del
CL B NEW · CUSIP 084670702
0.5%$15m30,345
+$600k
-11 shares
Trimmed
Meta Platforms Inc (META)
CL A · CUSIP 30303M102
0.5%$15m27,048
+$7.1m
+12,856 shares
Added
Valero Energy Corp
COM · CUSIP 91913Y100
0.5%$15m58,515
+$14m
+54,259 shares
Added
Ge Vernova Inc (GEV)
COM · CUSIP 36828A101
0.5%$15m13,020
-$22m
-29,233 shares
Trimmed
Alphabet Inc
CAP STK CL A · CUSIP 02079K305
0.5%$15m42,875
+$12m
+29,417 shares
Added
Visa Inc (V)
COM CL A · CUSIP 92826C839
0.5%$15m44,760
+$2.0m
+704 shares
Added
Broadcom Inc (AVGO)
COM · CUSIP 11135F101
0.5%$15m40,761
+$15m
+39,849 shares
Added
Western Digital Corp (WDC)
COM · CUSIP 958102105
0.5%$16m24,252
+$9.0m
+315 shares
Added
Amazon Com Inc (AMZN)
COM · CUSIP 023135106
0.5%$16m66,123
+$11m
+43,320 shares
Added
Wells Fargo & Co
COM · CUSIP 949746101
0.5%$16m196,739No earlier filingNew
Nvidia Corporation (NVDA)
COM · CUSIP 67066G104
0.5%$17m83,078
+$500k
-9,447 shares
Trimmed
Everus Constr Group
COM · CUSIP 300426103
0.6%$18m110,509
+$4.0m
-10,560 shares
Trimmed
MSC Indl Direct Inc
CL A · CUSIP 553530106
0.6%$19m161,582
+$4.6m
+3,438 shares
Added
Mueller Inds Inc
COM · CUSIP 624756102
0.7%$20m164,130No earlier filingNew
Booking Holdings Inc (BKNG)
COM · CUSIP 09857L108
0.7%$21m116,795
-$15m
+108,321 shares
Added
Stifel Finl Corp
COM · CUSIP 860630102
0.7%$21m299,748
+$2.7m
+52,778 shares
Added
iShares Bitcoin Trust ETF (IBIT)
SHS BEN INT · CUSIP 46438F101
0.7%$22m661,277
-$3.4m
0 shares
Held
Carvana Co (CVNA)
CL A · CUSIP 146869102
0.7%$23m350,143No earlier filingNew
Powell Inds Inc
COM · CUSIP 739128106
0.9%$26m92,344
+$10m
+61,989 shares
Added
Aes Corp (AES)
COM · CUSIP 00130H105
0.9%$27m1,828,033
+$4.8m
+269,008 shares
Added
Public Storage
COM · CUSIP 74460D109
0.9%$28m87,341No earlier filingNew
Crowdstrike HLDGS Inc
CL A · CUSIP 22788C105
0.9%$29m37,402No earlier filingNew
Entegris Inc (ENTG)
COM · CUSIP 29362U104
0.9%$29m159,427
+$7.4m
-22,057 shares
Trimmed
Incyte Corp (INCY)
COM · CUSIP 45337C102
0.9%$29m254,408
+$13m
+81,376 shares
Added
CSX Corp (CSX)
COM · CUSIP 126408103
0.9%$29m611,138
+$4.6m
+15,029 shares
Added
Cme Group Inc (CME)
COM · CUSIP 12572Q105
0.9%$29m132,440
+$12m
+72,440 shares
Added
Masco Corp
COM · CUSIP 574599106
1.0%$31m376,678
+$15m
+108,788 shares
Added
Kla Corp (KLAC)
COM NEW · CUSIP 482480100
1.3%$41m136,740
+$40m
+135,934 shares
Added
Solstice Advanced Matls Inc
COM SHS · CUSIP 83443Q103
1.4%$43m484,616
+$20m
+177,976 shares
Added
Invesco Exch Traded FD TR II
SR LN ETF · CUSIP 46138G508
1.4%$44m2,179,806
+$3.6m
+179,806 shares
Added
Vanguard Scottsdale FDS
INT-TERM CORP · CUSIP 92206C870
1.6%$50m605,000No earlier filingNew
iShares TR
IBOXX INV CP ETF · CUSIP 464287242
2.5%$78m710,173No earlier filingNew
Berkshire Hathaway Inc Del
CL A · CUSIP 084670108
5.3%$163m217
+$6.7m
0 shares
Held

Every filing on file

QuarterPeriod endFiledBookPositionsTop 10Filing
Q2 202630 Jun 20267 Aug 2026$3.1bn1,13717%13F-HR
Q1 202631 Mar 202612 May 2026$2.9bn1,08015%13F-HR
Q4 202531 Dec 202511 Feb 2026$2.9bn91116%13F-HR
Q3 202530 Sept 202513 Nov 2025$2.7bn69720%13F-HR
Q2 202530 Jun 202514 Aug 2025$2.0bn80720%13F-HR
Q1 202531 Mar 202515 May 2025$1.6bn65622%13F-HR
Q4 202431 Dec 202412 Feb 2025$1.5bn59421%13F-HR
Q3 202430 Sept 202412 Nov 2024$1.4bn60523%13F-HR

Taking this into the room

Pick one name from the top of the book and one from the new positions, and know both properly: what the company earns, what it is priced at, and what has to be true for the position to work. That is a conversation. Reciting the whole table is not, and the interviewer wrote it.

A position sold out of is worth as much preparation as one opened. Ask what changed rather than asserting the fund was wrong, and be ready for the answer that the thesis played out and the money went somewhere better.

Compare this against every other manager →How a hedge fund interview runs →

What this filing leaves out

A 13F covers US-listed long equity at one moment in time. Shorts, bonds, cash, private positions and non-US listings never appear, and options are reported in a form that will mislead you if you read them as a position. A long/short manager showing $8bn here may run a book several times that size.

The lag matters too. Positions are as at the quarter end and the filing arrives up to forty-five days later, so what you are reading is at least six weeks old and possibly four months. Phrase it as what the filing showed, not what the fund holds today.

Company names, tickers and logos are the trademarks of their respective owners and appear here to identify the company whose public figures are being used. L3VLUP is not affiliated with, sponsored by or endorsed by any company shown, and nothing here is a statement by or about that company. More