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 | |
|---|---|---|---|---|---|---|
|
GOGL
1326
DELISTED
Golden Ocean Group
GOGL
| $3.89M | 0.01% |
530,738
-17,501
| -3% | -$133K |
|
1327
Bentley Systems
BSY
$11.4B
| $3.87M | 0.01% |
71,759
-185,355
| -72% | -$8.58M |
|
1328
Progress Software
PRGS
$1.78B
| $3.87M | 0.01% |
60,619
-8,121
| -12% | -$494K |
|
1329
HCA Healthcare
HCA
$92.9B
| $3.87M | 0.01% |
10,100
| – | – |
|
1330
Magna International
MGA
$18.1B
| $3.87M | 0.01% |
100,141
+4,664
| +5% | +$165K |
|
1331
Carriage Services
CSV
$549M
| $3.86M | 0.01% |
84,482
+36,915
| +78% | +$1.54M |
|
1332
Prosperity Bancshares
PB
$8.74B
| $3.86M | 0.01% |
54,983
+3,289
| +6% | +$227K |
|
1333
Sociedad Química y Minera de Chile
SQM
$23.5B
| $3.86M | 0.01% |
109,486
+39,794
| +57% | +$1.36M |
|
|
NTWO
1334
Newbury Street II Acquisition Corp
NTWO
$276M
| $3.86M | 0.01% |
375,000
| – | – |
|
1335
Avery Dennison
AVY
$13.9B
| $3.85M | 0.01% |
21,921
-186,303
| -89% | -$32.7M |
|
1336
Avantor
AVTR
$9.64B
| $3.84M | 0.01% |
285,584
+219,972
| +335% | +$3.01M |
|
1337
Sherwin-Williams
SHW
$84.2B
| $3.84M | 0.01% |
11,194
-69,816
| -86% | -$24.2M |
|
|
SOBO
1338
South Bow Corp
SOBO
$7.78B
| $3.83M | 0.01% |
147,721
-276,183
| -65% | -$7.03M |
|
1339
McEwen Inc
MUX
$1.29B
| $3.83M | 0.01% |
398,118
-60,956
| -13% | -$497K |
|
1340
Coursera
COUR
$1.59B
| $3.82M | 0.01% |
436,533
-79,849
| -15% | -$654K |
|
1341
Yeti Holdings
YETI
$3.14B
| $3.8M | 0.01% |
+120,716
| New | +$3.62M |
|
1342
Lithia Motors
LAD
$8.1B
| $3.79M | 0.01% |
11,224
+10,224
| +1,022% | +$3.16M |
|
1343
OneMain Financial
OMF
$7.23B
| $3.79M | 0.01% |
+66,500
| New | +$3.32M |
|
1344
Criteo S.A.
CRTO
$837M
| $3.78M | 0.01% |
157,569
+24,016
| +18% | +$676K |
|
1345
Charter Communications
CHTR
$17.9B
| $3.77M | 0.01% |
9,225
-52,880
| -85% | -$20.2M |
|
1346
FedEx
FDX
$79.1B
| $3.77M | 0.01% |
16,588
+15,588
| +1,559% | +$3.41M |
|
1347
Pilgrim's Pride
PPC
$7.57B
| $3.76M | 0.01% |
83,662
-140,504
| -63% | -$6.89M |
|
1348
iShares US Regional Banks ETF
IAT
$665M
| $3.76M | 0.01% |
75,900
-6,800
| -8% | -$310K |
|
1349
BlackSky Technology
BKSY
$1.05B
| $3.76M | 0.01% |
182,614
+162,127
| +791% | +$1.75M |
|
|
PDM
1350
Piedmont Realty Trust
PDM
$1.23B
| $3.75M | 0.01% |
514,872
-110,709
| -18% | -$765K |
|
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.