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 | |
|---|---|---|---|---|---|---|
2376
CALL
MP Materials
MP
$10.7B
| $1.21M | ﹤0.01% |
+18,000
| New | +$1.13M |
|
|
ETJ
2377
Eaton Vance Risk-Managed Diversified Equity Income Fund
ETJ
$568M
| $1.21M | ﹤0.01% |
134,156
+75,909
| +130% | +$681K |
|
2378
Ziff Davis
ZD
$1.9B
| $1.21M | ﹤0.01% |
+31,640
| New | +$1.11M |
|
2379
M-tron Industries
MPTI
$346M
| $1.2M | ﹤0.01% |
21,700
+15,085
| +228% | +$676K |
|
2380
Vertical Aerospace
EVTL
$133M
| $1.2M | ﹤0.01% |
231,967
+83,404
| +56% | +$464K |
|
2381
Vishay Precision Group
VPG
$859M
| $1.2M | ﹤0.01% |
37,513
+7,075
| +23% | +$205K |
|
2382
KNOT Offshore Partners
KNOP
$369M
| $1.2M | ﹤0.01% |
136,160
-19,636
| -13% | -$150K |
|
2383
Principal Exchange-Traded Funds Principal Value ETF
PY
$246M
| $1.2M | ﹤0.01% |
22,800
-9,500
| -29% | -$485K |
|
2384
Monte Rosa Therapeutics
GLUE
$1.24B
| $1.2M | ﹤0.01% |
161,481
-78,456
| -33% | -$416K |
|
2385
Oppenheimer Holdings
OPY
$1.24B
| $1.2M | ﹤0.01% |
16,182
-7,035
| -30% | -$510K |
|
2386
Align Technology
ALGN
$11.3B
| $1.19M | ﹤0.01% |
+9,543
| New | +$1.49M |
|
2387
Consolidated Water Co
CWCO
$482M
| $1.19M | ﹤0.01% |
33,844
+19,717
| +140% | +$628K |
|
2388
PUT
D.R. Horton
DHI
$42.2B
| $1.19M | ﹤0.01% |
+7,000
| New | +$1.1M |
|
2389
CALL
Nike
NKE
$58.6B
| $1.19M | ﹤0.01% |
+17,000
| New | +$1.27M |
|
2390
PUT
Salesforce
CRM
$168B
| $1.19M | ﹤0.01% |
+5,000
| New | +$1.26M |
|
2391
Red Robin
RRGB
$183M
| $1.18M | ﹤0.01% |
172,489
+29,045
| +20% | +$186K |
|
|
MRUS
2392
DELISTED
Merus
MRUS
| $1.18M | ﹤0.01% |
12,544
-106,550
| -89% | -$6.94M |
|
2393
Fortune Brands Innovations
FBIN
$5.45B
| $1.18M | ﹤0.01% |
22,116
-17,133
| -44% | -$967K |
|
|
ONTF
2394
DELISTED
ON24
ONTF
| $1.18M | ﹤0.01% |
206,340
+88,936
| +76% | +$478K |
|
2395
Clear Channel Outdoor Holdings
CCO
$1.21B
| $1.18M | ﹤0.01% |
+745,366
| New | +$929K |
|
2396
First United
FUNC
$279M
| $1.18M | ﹤0.01% |
32,010
-3,270
| -9% | -$115K |
|
2397
Federal Agricultural Mortgage
AGM
$2.38B
| $1.18M | ﹤0.01% |
7,005
-9,759
| -58% | -$1.83M |
|
2398
CALL
Micron Technology
MU
$1.05T
| $1.17M | ﹤0.01% |
+7,000
| New | +$896K |
|
2399
First Financial Corp
THFF
$942M
| $1.17M | ﹤0.01% |
20,666
-10,494
| -34% | -$594K |
|
2400
iHeartMedia
IHRT
$415M
| $1.16M | ﹤0.01% |
405,327
+148,279
| +58% | +$328K |
|
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.