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 | |
|---|---|---|---|---|---|---|
2476
First Trust Dow Jones Select MicroCap Index Fund
FDM
$269M
| $1.03M | ﹤0.01% |
13,600
| – | – |
|
|
DEA
2477
Easterly Government Properties
DEA
$1.19B
| $1.03M | ﹤0.01% |
44,880
-121,866
| -73% | -$2.77M |
|
2478
RBB Bancorp
RBB
$448M
| $1.03M | ﹤0.01% |
54,809
+26,662
| +95% | +$510K |
|
2479
VistaGen Therapeutics
VTGN
$11M
| $1.03M | ﹤0.01% |
289,409
+199,958
| +224% | +$597K |
|
|
2480
iShares Expanded Tech-Software Sector ETF
IGV
$14B
| $1.02M | ﹤0.01% |
8,900
-3,145,400
| -100% | -$348M |
|
2481
Esquire Financial Holdings
ESQ
$1.37B
| $1.02M | ﹤0.01% |
10,019
+3,513
| +54% | +$346K |
|
|
PDS
2482
Precision Drilling
PDS
$1.12B
| $1.02M | ﹤0.01% |
18,112
+11,898
| +191% | +$651K |
|
2483
Orion
OEC
$337M
| $1.02M | ﹤0.01% |
134,373
+67,379
| +101% | +$681K |
|
2484
CALL
D.R. Horton
DHI
$42.2B
| $1.02M | ﹤0.01% |
+6,000
| New | +$944K |
|
2485
Keysight
KEYS
$54.5B
| $1.02M | ﹤0.01% |
5,812
-19,982
| -77% | -$3.33M |
|
2486
BRC Group Holdings
RILY
$290M
| $1.02M | ﹤0.01% |
169,977
+143,877
| +551% | +$795K |
|
2487
CALL
Citigroup
C
$224B
| $1.01M | ﹤0.01% |
+10,000
| New | +$949K |
|
2488
DXC Technology
DXC
$1.74B
| $1.01M | ﹤0.01% |
+74,253
| New | +$1.05M |
|
|
OPRA
2489
Opera Ltd
OPRA
$1.73B
| $1M | ﹤0.01% |
48,675
-88,557
| -65% | -$1.58M |
|
2490
Investar Holding Corp
ISTR
$417M
| $1M | ﹤0.01% |
43,168
+7,220
| +20% | +$162K |
|
2491
PUT
Ford
F
$55.6B
| $1M | ﹤0.01% |
+83,700
| New | +$964K |
|
2492
Adtran
ADTN
$653M
| $1M | ﹤0.01% |
106,692
+26,828
| +34% | +$250K |
|
|
OMDA
2493
Omada Health Inc
OMDA
$1.47B
| $1,000K | ﹤0.01% |
45,219
+35,219
| +352% | +$721K |
|
|
NOA
2494
North American Construction
NOA
$359M
| $999K | ﹤0.01% |
70,380
-31,822
| -31% | -$463K |
|
2495
CALL
Lockheed Martin
LMT
$128B
| $998K | ﹤0.01% |
+2,000
| New | +$907K |
|
2496
Boyd Gaming
BYD
$5.89B
| $998K | ﹤0.01% |
11,545
-11,612
| -50% | -$975K |
|
2497
Axsome Therapeutics
AXSM
$10.8B
| $997K | ﹤0.01% |
+8,207
| New | +$924K |
|
2498
Holley
HLLY
$350M
| $996K | ﹤0.01% |
317,172
+306,820
| +2,964% | +$914K |
|
2499
PUT
Broadcom
AVGO
$1.7T
| $990K | ﹤0.01% |
+3,000
| New | +$920K |
|
2500
TAL Education Group
TAL
$6.43B
| $989K | ﹤0.01% |
+88,300
| New | +$951K |
|
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.