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 | |
|---|---|---|---|---|---|---|
|
NBIS
2951
PUT
Nebius Group N.V.
NBIS
$57.3B
| $449K | ﹤0.01% |
+4,000
| New | +$278K |
|
2952
Gran Tierra Energy
GTE
$352M
| $448K | ﹤0.01% |
102,921
-1,066
| -1% | -$4.52K |
|
|
FSCS
2953
First Trust SMID Capital Strength ETF
FSCS
$61.1M
| $448K | ﹤0.01% |
12,200
+2,100
| +21% | +$76.8K |
|
2954
PUT
Southwest Airlines
LUV
$19.9B
| $447K | ﹤0.01% |
+14,000
| New | +$458K |
|
2955
Design Therapeutics
DSGN
$953M
| $446K | ﹤0.01% |
59,237
-30,074
| -34% | -$151K |
|
|
CTNM
2956
Contineum Therapeutics
CTNM
$626M
| $446K | ﹤0.01% |
37,943
-23,020
| -38% | -$186K |
|
2957
Ovid Therapeutics
OVID
$551M
| $443K | ﹤0.01% |
+341,134
| New | +$296K |
|
2958
PUT
Marathon Petroleum
MPC
$102B
| $443K | ﹤0.01% |
+2,300
| New | +$404K |
|
|
PONY
2959
Pony AI Inc
PONY
$3.28B
| $443K | ﹤0.01% |
+19,700
| New | +$300K |
|
2960
Riverview Bancorp
RVSB
$103M
| $443K | ﹤0.01% |
82,440
+72,384
| +720% | +$377K |
|
2961
iShares Core Dividend Growth ETF
DGRO
$43.9B
| $443K | ﹤0.01% |
+6,500
| New | +$430K |
|
2962
Yum China
YUMC
$16.7B
| $442K | ﹤0.01% |
10,300
-71,548
| -87% | -$3.25M |
|
2963
Crawford & Co Class A
CRD.A
$639M
| $441K | ﹤0.01% |
41,224
+11,170
| +37% | +$118K |
|
2964
CALL
First Solar
FSLR
$22.4B
| $441K | ﹤0.01% |
+2,000
| New | +$384K |
|
2965
Accuray
ARAY
$32.4M
| $441K | ﹤0.01% |
+263,845
| New | +$390K |
|
2966
Inogen
INGN
$146M
| $440K | ﹤0.01% |
+53,902
| New | +$403K |
|
|
FBLA
2967
FB Bancorp
FBLA
$230M
| $439K | ﹤0.01% |
+36,552
| New | +$432K |
|
2968
Matthews International
MATW
$662M
| $438K | ﹤0.01% |
18,039
+7,180
| +66% | +$176K |
|
2969
PUT
Credo Technology Group
CRDO
$41.5B
| $437K | ﹤0.01% |
+3,000
| New | +$367K |
|
2970
Larimar Therapeutics
LRMR
$421M
| $435K | ﹤0.01% |
134,729
-768,882
| -85% | -$2.88M |
|
2971
Mattel
MAT
$4.23B
| $435K | ﹤0.01% |
25,851
-11,400
| -31% | -$208K |
|
2972
Franklin Covey
FC
$232M
| $434K | ﹤0.01% |
22,334
-15,262
| -41% | -$302K |
|
2973
US Gold Corp
USAU
$266M
| $433K | ﹤0.01% |
26,287
-18,834
| -42% | -$240K |
|
2974
Amer Sports
AS
$18.2B
| $433K | ﹤0.01% |
12,448
-492,970
| -98% | -$18.6M |
|
2975
Renasant Corp
RNST
$3.79B
| $432K | ﹤0.01% |
11,713
-74,103
| -86% | -$2.8M |
|
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.