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 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$474M |
| 2 |
State Street Consumer Staples Select Sector SPDR ETF
XLP
|
+$357M |
| 3 |
Accenture
ACN
|
+$246M |
| 4 |
Advanced Micro Devices
AMD
|
+$235M |
| 5 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$231M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$381M |
| 2 |
State Street Technology Select Sector SPDR ETF
XLK
|
+$375M |
| 3 |
iShares Expanded Tech-Software Sector ETF
IGV
|
+$348M |
| 4 |
Thermo Fisher Scientific
TMO
|
+$292M |
| 5 |
Snowflake
SNOW
|
+$258M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 16.18% |
| 2 | Financials | 15.54% |
| 3 | Industrials | 10.5% |
| 4 | Healthcare | 9.8% |
| 5 | Consumer Discretionary | 8.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1326
Gold Royalty Corp
GROY
$802M
| $5.41M | 0.01% |
1,400,411
+145,222
| +12% | +$448K |
|
1327
Village Farms International
VFF
$331M
| $5.4M | 0.01% |
1,724,648
+1,124,085
| +187% | +$2.44M |
|
1328
Certara
CERT
$1.21B
| $5.39M | 0.01% |
440,981
+61,734
| +16% | +$675K |
|
1329
Olin
OLN
$2B
| $5.38M | 0.01% |
215,283
-261,071
| -55% | -$5.8M |
|
1330
HF Sinclair
DINO
$16.9B
| $5.36M | 0.01% |
102,349
+126
| +0.1% | +$5.97K |
|
|
VCIC
1331
DELISTED
Vine Hill Capital Investment Corp
VCIC
| $5.36M | 0.01% |
500,000
| – | – |
|
1332
FuelCell Energy
FCEL
$1.5B
| $5.35M | 0.01% |
+685,699
| New | +$3.73M |
|
1333
CrowdStrike
CRWD
$194B
| $5.34M | 0.01% |
43,596
-1,084,996
| -96% | -$123M |
|
1334
Alamos Gold
AGI
$16B
| $5.34M | 0.01% |
153,300
-754,092
| -83% | -$21.6M |
|
1335
Evertec
EVTC
$1.77B
| $5.34M | 0.01% |
158,107
-69,638
| -31% | -$2.43M |
|
|
VRNA
1336
DELISTED
Verona Pharma
VRNA
| $5.34M | 0.01% |
49,997
-300,545
| -86% | -$31.4M |
|
1337
3D Systems Corp
DDD
$518M
| $5.32M | 0.01% |
1,836,053
+816,239
| +80% | +$1.68M |
|
1338
Warby Parker
WRBY
$3.24B
| $5.32M | 0.01% |
192,881
-68,660
| -26% | -$1.73M |
|
1339
Hims & Hers Health
HIMS
$7.25B
| $5.31M | 0.01% |
93,698
+47,500
| +103% | +$2.43M |
|
1340
Take-Two Interactive
TTWO
$43.7B
| $5.31M | 0.01% |
20,554
+6,628
| +48% | +$1.57M |
|
1341
Altria Group
MO
$114B
| $5.31M | 0.01% |
80,343
-87,153
| -52% | -$5.52M |
|
|
KOYN
1342
CSLM Digital Asset Acquisition Corp III
KOYN
$323M
| $5.28M | 0.01% |
+532,249
| New | +$5.29M |
|
1343
Amerant Bancorp
AMTB
$1.13B
| $5.28M | 0.01% |
274,045
+38,588
| +16% | +$778K |
|
1344
Vanguard Morningstar Small-Cap Value ETF
VBR
$37.8B
| $5.28M | 0.01% |
+25,300
| New | +$5.17M |
|
|
TONT
1345
Graf Global Corp
TONT
$154M
| $5.27M | 0.01% |
500,000
| – | – |
|
|
SIMA
1346
SIM Acquisition Corp I
SIMA
$90M
| $5.27M | 0.01% |
500,000
| – | – |
|
1347
Vanguard Consumer Discretionary ETF
VCR
$6.1B
| $5.27M | 0.01% |
+13,300
| New | +$5.07M |
|
1348
Myriad Genetics
MYGN
$292M
| $5.27M | 0.01% |
728,674
+184,220
| +34% | +$1.09M |
|
|
TPC
1349
Tutor Perini Cor
TPC
$4.64B
| $5.26M | 0.01% |
+80,249
| New | +$4.47M |
|
|
CUB
1350
Lionheart Holdings
CUB
$284M
| $5.25M | 0.01% |
500,000
| – | – |
|
Similar funds
John Overdeck's Q3 2025 Portfolio in Review
As of Q3 2025, John Overdeck held 4,027 positions worth $67.2B, up 19% from $56.5B the previous quarter. Its ten largest holdings account for 6.2% of the portfolio.
John Overdeck deployed $4.46B of net new capital in Q3 2025, opening 877 new positions and adding to 1,461 existing holdings. Its largest new stake was Berkshire Hathaway Class B: 379,096 shares worth $191M.
By sector, the portfolio is most concentrated in Technology at 16% of assets, down from 17% a quarter earlier, followed by Financials and Industrials.
On the sell side, the largest reduction was Invesco QQQ Trust, an estimated $381M trimmed.
- John Overdeck's largest Q3 2025 buy was Berkshire Hathaway Class B: 379,096 shares worth $191M.
- John Overdeck added most to State Street Financial Select Sector SPDR ETF in Q3 2025, an estimated $474M increase.
- John Overdeck's biggest Q3 2025 reduction was Invesco QQQ Trust, cutting an estimated $381M.
- John Overdeck fully exited NextEra Energy, Inc. 6.926% Corporate Units in Q3 2025, selling an estimated $115M.
- John Overdeck's ten largest holdings make up 6.2% of its $67.2B portfolio in Q3 2025.
- John Overdeck opened 877 new positions and closed 399 in Q3 2025.
- John Overdeck's portfolio value rose 19% quarter-over-quarter to $67.2B.
Based on Two Sigma Investments's 13F filing for Q3 2025, filed 14 Nov 2025.