John Overdeck Two Sigma Investments
John Overdeck is a co-founder of Two Sigma Investments, one of the world’s leading quantitative and technology-driven investment firms. Two Sigma applies data science, machine learning, and large-scale computing to markets across asset classes. Overdeck’s firm is a central reference point in discussions of modern systematic investing.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Expanded Tech-Software Sector ETF
IGV
|
+$312M |
| 2 |
UnitedHealth
UNH
|
+$286M |
| 3 |
Duolingo
DUOL
|
+$247M |
| 4 |
Aon
AON
|
+$226M |
| 5 |
Chubb
CB
|
+$221M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$338M |
| 2 |
Marvell Technology
MRVL
|
+$241M |
| 3 |
Advanced Micro Devices
AMD
|
+$240M |
| 4 |
ServiceNow
NOW
|
+$203M |
| 5 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$193M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 16.79% |
| 2 | Financials | 14.46% |
| 3 | Healthcare | 12.9% |
| 4 | Consumer Discretionary | 8.97% |
| 5 | Industrials | 8.82% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
ORC
1426
Orchid Island Capital
ORC
$1.34B
| $3.33M | 0.01% |
475,072
-483,587
| -50% | -$3.35M |
|
1427
Carlyle Secured Lending
CGBD
$788M
| $3.32M | 0.01% |
242,989
-102,816
| -30% | -$1.46M |
|
1428
AMC Global Media
AMCX
$512M
| $3.32M | 0.01% |
530,132
-119,278
| -18% | -$753K |
|
1429
Ultrapar
UGP
$7.16B
| $3.32M | 0.01% |
1,013,235
-328,413
| -24% | -$996K |
|
1430
Arcus Biosciences
RCUS
$3.84B
| $3.32M | 0.01% |
408,195
+109,771
| +37% | +$938K |
|
1431
Goldman Sachs MarketBeta US Equity ETF
GSUS
$3.28B
| $3.32M | 0.01% |
+38,800
| New | +$3.06M |
|
1432
FTI Consulting
FCN
$4.29B
| $3.31M | 0.01% |
20,500
-22,000
| -52% | -$3.59M |
|
1433
Roundhill Ball Metaverse ETF
METV
$221M
| $3.31M | 0.01% |
194,400
+151,200
| +350% | +$2.23M |
|
1434
Acadia Realty Trust
AKR
$2.93B
| $3.31M | 0.01% |
178,035
+132,348
| +290% | +$2.56M |
|
1435
Yext
YEXT
$655M
| $3.3M | 0.01% |
388,365
+196,233
| +102% | +$1.38M |
|
|
CADE
1436
DELISTED
Cadence Bank
CADE
| $3.3M | 0.01% |
103,047
-22,162
| -18% | -$664K |
|
1437
IDEAYA Biosciences
IDYA
$3.86B
| $3.29M | 0.01% |
156,639
-311,939
| -67% | -$5.99M |
|
1438
Acuity Brands
AYI
$10.1B
| $3.29M | 0.01% |
11,034
+244
| +2% | +$63.2K |
|
|
VMEO
1439
DELISTED
Vimeo
VMEO
| $3.28M | 0.01% |
813,050
+370,923
| +84% | +$1.72M |
|
1440
Sturm, Ruger & Co
RGR
$615M
| $3.27M | 0.01% |
90,959
+33,763
| +59% | +$1.25M |
|
1441
Federal Agricultural Mortgage
AGM
$2.38B
| $3.26M | 0.01% |
+16,764
| New | +$3.08M |
|
|
NLOP
1442
Net Lease Office Properties
NLOP
$171M
| $3.25M | 0.01% |
99,910
+47,667
| +91% | +$1.46M |
|
1443
Grid Dynamics Holdings
GDYN
$638M
| $3.25M | 0.01% |
281,112
+226,587
| +416% | +$2.98M |
|
1444
Nathan's Famous
NATH
$401M
| $3.25M | 0.01% |
29,361
+25,725
| +708% | +$2.62M |
|
1445
Invesco KBW Property & Casualty Insurance ETF
KBWP
$290M
| $3.24M | 0.01% |
+26,400
| New | +$3.2M |
|
1446
Peoples Bancorp
PEBO
$1.43B
| $3.24M | 0.01% |
106,161
+9,028
| +9% | +$264K |
|
1447
Kearny Financial
KRNY
$638M
| $3.24M | 0.01% |
500,865
+19,582
| +4% | +$121K |
|
1448
Humacyte
HUMA
$184M
| $3.21M | 0.01% |
1,537,381
+950,940
| +162% | +$1.83M |
|
1449
Maravai LifeSciences
MRVI
$1.26B
| $3.21M | 0.01% |
1,332,761
-101,710
| -7% | -$214K |
|
1450
Bilibili
BILI
$6.91B
| $3.21M | 0.01% |
149,572
-1,385,477
| -90% | -$25.5M |
|
Similar funds
John Overdeck's Q2 2025 Portfolio in Review
As of Q2 2025, John Overdeck held 3,681 positions worth $56.5B, up 21% from $46.8B the previous quarter. Its ten largest holdings account for 7.7% of the portfolio.
John Overdeck deployed $2.96B of net new capital in Q2 2025, opening 509 new positions and adding to 1,200 existing holdings. Its largest new stake was iShares Expanded Tech-Software Sector ETF: 3,154,300 shares worth $345M.
By sector, the portfolio is most concentrated in Technology at 17% of assets, down from 18% a quarter earlier, followed by Financials and Healthcare.
On the sell side, the largest reduction was Broadcom, an estimated $338M trimmed.
- John Overdeck's largest Q2 2025 buy was iShares Expanded Tech-Software Sector ETF: 3,154,300 shares worth $345M.
- John Overdeck added most to UnitedHealth in Q2 2025, an estimated $286M increase.
- John Overdeck's biggest Q2 2025 reduction was Broadcom, cutting an estimated $338M.
- John Overdeck fully exited State Street Utilities Select Sector SPDR ETF in Q2 2025, selling an estimated $134M.
- John Overdeck's ten largest holdings make up 7.7% of its $56.5B portfolio in Q2 2025.
- John Overdeck opened 509 new positions and closed 531 in Q2 2025.
- John Overdeck's portfolio value rose 21% quarter-over-quarter to $56.5B.
Based on Two Sigma Investments's 13F filing for Q2 2025, filed 14 Aug 2025.