Arkolith/Funds/AQR Arbitrage LLC

AQR Arbitrage LLC

CIK 1167456
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Active Filer

AQR Arbitrage LLC holds a diversified book of 556 stocks worth $6.1B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Penumbra Inc and trimmed On Semiconductor Corp. Their largest long position is Electronic Arts Inc at 2% of the equity book.

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holdings, largest changes, and filing provenance.
Opened
197
new positions
Added to
101
existing
Trimmed
239
reduced
Sold out
109
exited

Concentration

Top-heavy: diversified book

Top 5 holdings
11%
Top 10 holdings
21%
Top 20 holdings
35%

Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.

Direct sector allocation

71% mapped to company sectors

Financials
34%
ETF / fund or unclassified
29%
Information Technology
9%
Utilities
7%
Industrials
5%
Health Care
5%
Materials
4%
Communication Services
3%

Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.

Biggest moves: latest quarter

Estimated $ traded · quarter-end prices, no cost basis

Bought
Trimmed / exited

Holdings: largest first

Bars show each stock's share of the portfolio. Click a row for its position history.

556 positions
#SecurityValueShares% PortLast moveHistory
1Electronic Arts Inc
COM
$147.5M727.7K
2.4%
+116%
Added · +390K sh
2Penumbra Inc
COM
$138.9M423.1K
2.3%
New
New position
3Qorvo Inc
COM
$133.8M1.73M
2.2%
+24%
Added · +330K sh
4Chart Inds Inc
COM
$133.2M644.4K
2.2%
+49%
Added · +211K sh
5Norfolk Southn Corp
COM
$126.6M446.1K
2.1%
+30%
Added · +104K sh
6Teck Resources Ltd
CL B
$126.5M2.44M
2.1%
+3.3%
Added · +79K sh
7Essential Utils Inc
COM
$126.3M3.14M
2.1%
+231%
Added · +2.2M sh
8Webster Finl Corp
COM
$123.9M1.80M
2.0%
New
New position
9Aes Corp
COM
$115.7M8.23M
1.9%
New
New position
10Air Lease Corp
CL A
$108.8M1.68M
1.8%
+13%
Added · +190K sh
11Warner Bros Discovery Inc
COM SER A
$104.2M3.84M
1.7%
+122%
Added · +2.1M sh
12TXNM Energy Inc
COM
$103.2M1.77M
1.7%
+50%
Added · +586K sh
13Kenvue Inc
COM
$95.2M5.59M
1.6%
+59%
Added · +2.1M sh
14Amicus Therapeutic
COM
$84.5M5.84M
1.4%
+195%
Added · +3.9M sh
15Trip Com Group Ltd
NOTE 0.750% 6/1
$83.9M80.89M
1.4%
+249%
Added · +57.7M sh
16On Semiconductor Corp
NOTE 0.500% 3/0
$83.2M84.86M
1.4%
−6.1%
Reduced · −5.6M sh
17Onestream Inc
CL A
$81.4M3.39M
1.3%
New
New position
18Hologic Inc
COM
$79.3M1.05M
1.3%
+150%
Added · +629K sh
19Draftkings Inc New
NOTE 3/1
$78.7M87.30M
1.3%
−17%
Reduced · −17.7M sh
20Clearwater Analytics Hldgs I
CL A
$77.9M3.30M
1.3%
+150%
Added · +2.0M sh
21Dexcom Inc
NOTE 0.375% 5/1
$77.2M83.67M
1.3%
+0.2%
Added · +164K sh
22Coterra Energy Inc
COM
$74.1M2.11M
1.2%
New
New position
23Janus Henderson Group PLC
ORD SHS
$74.0M1.44M
1.2%
+445%
Added · +1.2M sh
24Masimo Corp
COM
$73.9M417.0K
1.2%
New
New position
25Sealed Air Corp New
COM
$73.7M1.75M
1.2%
+66%
Added · +698K sh
26Northwestern Energy Group In
COM NEW
$71.3M1.08M
1.2%
+78%
Added · +475K sh
27Affirm Hldgs Inc
NOTE 0.750%12/1
$70.4M75.05M
1.2%
New
New position
28Tri Pointe Homes Inc
COM
$69.4M1.49M
1.1%
New
New position
29Liberty Broadband Corp
COM SER C
$67.6M1.34M
1.1%
+26%
Added · +274K sh
30Silicon Laboratories Inc
COM
$64.3M308.8K
1.1%
New
New position
31Valaris Ltd
CL A
$59.8M609.7K
1.0%
New
New position
32Day One Biopharmaceuticals I
COM
$52.8M2.46M
0.9%
New
New position
33Strategy Inc
NOTE 12/0
$52.0M62.47M
0.9%
+0.5%
Added · +325K sh
34Brighthouse Finl Inc
COM
$50.9M849.8K
0.8%
+50%
Added · +284K sh
35Global PMTS Inc
NOTE 1.500% 3/0
$50.4M57.10M
0.8%
+40%
Added · +16.2M sh
36Digitalbridge Group Inc
CL A NEW
$48.2M3.13M
0.8%
+181%
Added · +2.0M sh
37Unity Software Inc
NOTE 3/1
$44.9M45.02M
0.7%
New
New position
38CSG Sys Intl Inc
COM
$43.3M541.9K
0.7%
+7.6%
Added · +38K sh
39Super Micro Computer Inc
NOTE 3.500% 3/0
$42.1M52.66M
0.7%
−0.1%
Reduced · −35K sh
40Jd.com Inc
NOTE 0.250% 6/0
$37.9M38.05M
0.6%
+32%
Added · +9.3M sh
41Progress Software Corp
NOTE 3.500% 3/0
$37.6M42.16M
0.6%
+77%
Added · +18.3M sh
42Vishay Intertechnology Inc
NOTE 2.250% 9/1
$35.2M36.56M
0.6%
+37%
Added · +10.0M sh
43NCR Atleos Corporation
COM SHS
$33.7M784.2K
0.6%
New
New position
44Vertex Inc
NOTE 0.750% 5/0
$29.9M34.38M
0.5%
New
New position
45Groupon Inc
NOTE 4.875% 6/3
$29.5M36.01M
0.5%
+22%
Added · +6.5M sh
46Select Med Hldgs Corp
COM
$29.3M1.80M
0.5%
New
New position
47Unifirst Corp Mass
COM
$29.1M115.8K
0.5%
New
New position
48Upstart Hldgs Inc
NOTE 1.000%11/1
$27.6M38.70M
0.5%
New
New position
49Arcellx Inc
COMMON STOCK
$26.6M231.7K
0.4%
New
New position
50Skywater Technology Inc
COM
$26.1M951.0K
0.4%
New
New position
Showing 50 of 556 positions

Filing history

As-of date vs the date the SEC received each filing

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 15, 2026556$6.1B13F-HR
Q4 2025Dec 31, 2025Feb 17, 2026497$4.8B13F-HR
Q3 2025Sep 30, 2025Nov 14, 2025448$3.9B13F-HR
Q2 2025Jun 30, 2025Aug 14, 2025390$4.4B13F-HR
Q1 2025Mar 31, 2025May 15, 2025403$4.2B13F-HR
Q4 2024Dec 31, 2024Feb 14, 2025462$4.6B13F-HR
Q3 2024Sep 30, 2024Nov 14, 2024534$4.6B13F-HR
Q2 2024Jun 30, 2024Aug 14, 2024567$3.9B13F-HR
Q1 2024Mar 31, 2024May 15, 2024602$2.9B13F-HR
Q4 2023Dec 31, 2023Feb 14, 2024691$2.5B13F-HR
Q3 2023Sep 30, 2023Nov 14, 2023785$2.2B13F-HR
Q2 2023Jun 30, 2023Aug 14, 2023908$2.3B13F-HR
Q1 2023Mar 31, 2023May 15, 20231,049$3.3B13F-HR
Q4 2022Dec 31, 2022Feb 14, 20231,232$3.9B13F-HR
Q3 2022Sep 30, 2022Nov 14, 20221,479$4.5B13F-HR
Q2 2022Jun 30, 2022Aug 15, 20221,506$4.4B13F-HR
Q1 2022Mar 31, 2022May 16, 20221,361$3.8B13F-HR
Q4 2021Dec 31, 2021Feb 14, 20221,219$3.9B13F-HR
Q3 2021Sep 30, 2021Nov 15, 20211,167$3.5B13F-HR
Q2 2021Jun 30, 2021Aug 16, 20211,110$3.6B13F-HR
Q1 2021Mar 31, 2021May 17, 2021972$2.8B13F-HR
Q4 2020Dec 31, 2020Feb 16, 20211,072$2.8B13F-HR
Q3 2020Sep 30, 2020Nov 16, 2020565$2.8B13F-HR
Q2 2020Jun 30, 2020Aug 17, 2020518$2.2B13F-HR

Data source

Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.