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Hedge fund, long-only 13F filer

Marshall Wace

Marshall Wace is a London long/short equity firm founded by Paul Marshall and Ian Wace in 1997, known for its systematic TOPS process that turns broker ideas into portfolios. It discloses US-listed long equity (and some options) positions each quarter on SEC Form 13F — bonds, cash, private businesses and non-US holdings are not in that filing.

118.5BUSDreported value
3,103positions
+25.1BUSDon the prior filing
IVVlargest holding, 23.5%

What did Marshall Wace change last quarter?

In the quarter ended 30 June 2026 Marshall Wace opened 784 positions, the largest ISHARES PHLX SOX (SOXX) at 298.5M USD, then LPL FINANCIAL HO and HUMANA INC. It added to 897, trimmed 909 and sold out of 811, against the filing before.

Against the previous quarter's 13F, largest first within each kind; the 20 largest of each kind are listed

Quarterly changes by position
PositionChangeShares movedValue after
SOXXISHARES PHLX SOX, put optionNew buy+465.8K298.5M USD
LPLALPL FINANCIAL HONew buy+975.6K274.8M USD
HUMHUMANA INCNew buy+546.0K216.9M USD
RSGREPUBLIC SVCSNew buy+919.6K196.0M USD
SOXXISHARES PHLX SOX, call optionNew buy+293.5K188.1M USD
WINGWINGSTOP INCNew buy+961.3K166.7M USD
RSPINVESCO S&P 500New buy+703.7K149.7M USD
IVVISHARES-S&P 500, call optionNew buy+180.0K134.8M USD
BLKBLACKROCK INCNew buy+128.1K123.1M USD
RJFRAYMOND JAMESNew buy+665.5K101.2M USD
CDNSCADENCE DESIGN, put optionNew buy+260.0K97.6M USD
CORCENCORA INCNew buy+342.2K96.8M USD
VSATVIASAT INC, put optionNew buy+1.0M90.3M USD
INNIO NVNo US ticker on fileNew buy+2.1M83.2M USD
TRGPTARGA RESOURCESNew buy+297.7K79.8M USD
REGNREGENERON PHARM, put optionNew buy+127.0K79.2M USD
SMCI 7No US ticker on fileNew buy+1.5M76.7M USD
IRENIREN LTD, put optionNew buy+1.4M63.7M USD
CPNGCOUPANG INCNew buy+3.6M62.4M USD
DKNGDRAFTKINGS INC, put optionNew buy+2.5M62.3M USD
IVVISHARES-S&P 500Added+13.5M29.8B USD
MUMICRON TECHAdded+447.3K1.6B USD
COSTCOSTCO WHOLESALEAdded+910.7K1.1B USD
UNHUNITEDHEALTH GRPAdded+422.7K761.9M USD
JNJJOHNSON&JOHNSONAdded+611.7K759.3M USD
ABBVABBVIE INCAdded+3.0M752.5M USD
BACBANK OF AMERICAAdded+10.7M711.3M USD
KOCOCA-COLA CO/THEAdded+2.6M669.7M USD
JPMJP MORGAN CHASEAdded+2.0M647.5M USD
SMHMARKET VECTORS S, put optionAdded+491.4K507.5M USD
ABTABBOTT LABSAdded+3.5M502.9M USD
CMECME GROUP INCAdded+1.4M494.9M USD
BEBLOOM ENERGY C-AAdded+587.3K490.1M USD
AXPAMERICAN EXPRESSAdded+1.3M483.4M USD
IBMIBMAdded+1.4M478.9M USD
TXNTEXAS INSTRUMENTAdded+1.5M477.8M USD
FERGFERGUSON ENTERPRAdded+1.2M475.0M USD
QCOMQUALCOMM INCAdded+2.5M458.7M USD
NOKNOKIA CORP-ADRAdded+23.0M438.5M USD
XOMEXXON MOBIL CORPAdded+2.9M429.6M USD
NVDANVIDIA CORPTrimmed−5.0M1.7B USD
GOOGLALPHABET INC-ATrimmed−955.2K790.1M USD
SNDKSANDISK CORPTrimmed−355.4K475.7M USD
AVGOBROADCOM INCTrimmed−1.3M446.5M USD
CVXCHEVRON CORPTrimmed−1.6M420.3M USD
AMATAPPLIED MATERIALTrimmed−539.1K418.7M USD
LLYELI LILLY & COTrimmed−241.5K401.4M USD
INTCINTEL CORPTrimmed−4.8M348.2M USD
ASMLASML HOLDING-NYTrimmed−90.3K259.2M USD
WDCWESTERN DIGITALTrimmed−531.0K255.7M USD
RDDTREDDIT INC-ATrimmed−1.0M253.0M USD
GOOGALPHABET INC-CTrimmed−1.3M229.8M USD
MARMARRIOTT INTL-ATrimmed−488.1K202.4M USD
COFCAPITAL ONE FINATrimmed−583.4K194.4M USD
SHOPSHOPIFY INC - ATrimmed−908.4K186.5M USD
CRCLCIRCLE INTERNETTrimmed−2.9M181.7M USD
MRVLMARVELL TECHNOLOTrimmed−2.5M180.3M USD
ABNBAIRBNB INC-ATrimmed−1.8M178.0M USD
DGDOLLAR GENERAL CTrimmed−943.8K147.9M USD
DTEDTE ENERGY COTrimmed−417.4K144.6M USD
MRKMERCK & COSold out−2.8Mwas 334.2M USD
SRESEMPRASold out−1.4Mwas 132.0M USD
PODDINSULET CORPSold out−606.5Kwas 127.3M USD
RKLBROCKET LAB CORPSold out−1.9Mwas 120.8M USD
KMBKIMBERLY-CLARKSold out−1.2Mwas 114.1M USD
XLCCOMM SERV SELECT, put optionSold out−999.0Kwas 110.7M USD
XLBSPDR-MATERIALSSold out−2.1Mwas 107.3M USD
GLDSPDR GOLD TRUST, call optionSold out−207.9Kwas 89.5M USD
JBLJABIL INCSold out−318.8Kwas 84.7M USD
CHWYCHEWY INC- CL ASold out−3.1Mwas 83.9M USD
WMBWILLIAMS COS INCSold out−1.0Mwas 75.1M USD
TIGOMILLICOM INTLSold out−924.1Kwas 69.3M USD
CECELANESE CORPSold out−1.0Mwas 68.6M USD
HEIHEICO CORPSold out−239.1Kwas 65.5M USD
GEGENERAL ELECTRICSold out−230.4Kwas 65.4M USD
MCKMCKESSON CORPSold out−74.5Kwas 64.5M USD
USBUS BANCORPSold out−1.2Mwas 62.5M USD
MTBM&T BANK CORPSold out−301.6Kwas 62.4M USD
QQQINVESCO QQQ TRUSSold out−107.5Kwas 62.1M USD
VSTVISTRA CORP, put optionSold out−371.0Kwas 55.8M USD

Rows sharing a company name are separate securities of the same issuer — different share classes or option positions, as filed.

References
  1. SEC EDGAR Form 13F-HR, quarterly, up to 45 days delayed. Filings are public records. Ticker mapping via SEC public files and OpenFIGI.
  2. Finazon prior-day close, indicative (IEX-derived, not the official close), some closes dollar-rounded at the source
What Marshall Wace bought and sold last quarter — 13F changes · The Distributed