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 | |
|---|---|---|---|---|---|---|
|
AOMR
2326
Angel Oak Mortgage REIT
AOMR
$196M
| $1.32M | ﹤0.01% |
140,727
+28,194
| +25% | +$270K |
|
2327
StoneCo
STNE
$2.26B
| $1.32M | ﹤0.01% |
+69,700
| New | +$1.11M |
|
2328
Hawkins
HWKN
$2.47B
| $1.32M | ﹤0.01% |
7,200
-10
| -0.1% | -$1.67K |
|
2329
WisdomTree Trust WisdomTree US SmallCap Quality Dividend Growth Fund
DGRS
$410M
| $1.31M | ﹤0.01% |
26,300
-14,900
| -36% | -$736K |
|
2330
Tejon Ranch
TRC
$437M
| $1.31M | ﹤0.01% |
+82,219
| New | +$1.43M |
|
2331
Millicom
TIGO
$16B
| $1.31M | ﹤0.01% |
27,026
-3,443
| -11% | -$151K |
|
2332
Meridian
MRBK
$233M
| $1.31M | ﹤0.01% |
+82,838
| New | +$1.24M |
|
|
PCSC
2333
DELISTED
Perceptive Capital Solutions
PCSC
| $1.31M | ﹤0.01% |
123,838
| – | – |
|
2334
OptimizeRx
OPRX
$148M
| $1.31M | ﹤0.01% |
63,704
-39,041
| -38% | -$619K |
|
2335
Keros Therapeutics
KROS
$232M
| $1.31M | ﹤0.01% |
82,523
+69,001
| +510% | +$1.02M |
|
2336
Invesco S&P SmallCap Value with Momentum ETF
XSVM
$654M
| $1.3M | ﹤0.01% |
23,100
-54,400
| -70% | -$3M |
|
|
BELFB
2337
Bel Fuse Inc Class B
BELFB
$3.61B
| $1.3M | ﹤0.01% |
+9,242
| New | +$1.18M |
|
2338
Avantis Responsible US Equity ETF
AVSU
$482M
| $1.3M | ﹤0.01% |
+17,700
| New | +$1.26M |
|
2339
ZIM Integrated Shipping Services
ZIM
$3.38B
| $1.3M | ﹤0.01% |
95,728
-1,722,227
| -95% | -$26.1M |
|
2340
CubeSmart
CUBE
$9.15B
| $1.29M | ﹤0.01% |
31,725
-96,743
| -75% | -$3.94M |
|
|
SUPV
2341
Grupo Supervielle
SUPV
$769M
| $1.29M | ﹤0.01% |
260,400
+170,742
| +190% | +$1.49M |
|
2342
SL Green Realty
SLG
$4.24B
| $1.28M | ﹤0.01% |
+21,371
| New | +$1.27M |
|
2343
PUT
Capital One
COF
$133B
| $1.28M | ﹤0.01% |
+6,000
| New | +$1.31M |
|
2344
EA Bridgeway Omni Small-Cap Value ETF
BSVO
$2.44B
| $1.28M | ﹤0.01% |
+56,300
| New | +$1.24M |
|
2345
CALL
Altria Group
MO
$114B
| $1.27M | ﹤0.01% |
+19,300
| New | +$1.22M |
|
2346
Kilroy Realty
KRC
$4.33B
| $1.27M | ﹤0.01% |
30,160
+153
| +0.5% | +$6.03K |
|
2347
Columbia Research Enhanced Core ETF
RECS
$6.03B
| $1.27M | ﹤0.01% |
31,500
-572,100
| -95% | -$22M |
|
2348
Miller Industries
MLR
$649M
| $1.27M | ﹤0.01% |
31,356
-13,687
| -30% | -$576K |
|
2349
Vanguard US Quality Factor ETF
VFQY
$501M
| $1.27M | ﹤0.01% |
+8,400
| New | +$1.25M |
|
2350
CALL
PepsiCo
PEP
$194B
| $1.26M | ﹤0.01% |
+9,000
| New | +$1.29M |
|
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.