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 | |
|---|---|---|---|---|---|---|
3076
Utah Medical Products
UTMD
$228M
| $346K | ﹤0.01% |
5,497
-8,211
| -60% | -$486K |
|
3077
PUT
TeraWulf
WULF
$7.72B
| $346K | ﹤0.01% |
+30,300
| New | +$232K |
|
3078
Impinj
PI
$4.92B
| $346K | ﹤0.01% |
1,914
-2,412
| -56% | -$380K |
|
|
JOYY
3079
JOYY Inc
JOYY
$3.7B
| $346K | ﹤0.01% |
+5,900
| New | +$324K |
|
3080
Graphic Packaging
GPK
$3.39B
| $345K | ﹤0.01% |
+17,625
| New | +$383K |
|
3081
Sutro Biopharma
STRO
$340M
| $345K | ﹤0.01% |
39,679
+28,172
| +245% | +$240K |
|
3082
CALL
Dow Inc
DOW
$22.7B
| $344K | ﹤0.01% |
+15,000
| New | +$374K |
|
|
ALMS
3083
Alumis Inc
ALMS
$2.98B
| $343K | ﹤0.01% |
+86,084
| New | +$355K |
|
3084
Acumen Pharmaceuticals
ABOS
$223M
| $341K | ﹤0.01% |
199,446
-1,339
| -0.7% | -$1.85K |
|
3085
Sinclair Inc
SBGI
$1.05B
| $340K | ﹤0.01% |
22,542
-29,138
| -56% | -$418K |
|
|
MITT
3086
TPG Mortgage Investment Trust
MITT
$214M
| $340K | ﹤0.01% |
46,989
-52,866
| -53% | -$401K |
|
3087
Lyell Immunopharma
LYEL
$361M
| $338K | ﹤0.01% |
20,827
+10,768
| +107% | +$123K |
|
3088
Hillman Solutions
HLMN
$1.61B
| $338K | ﹤0.01% |
+36,800
| New | +$332K |
|
3089
PUT
American Electric Power
AEP
$66.4B
| $338K | ﹤0.01% |
+3,000
| New | +$328K |
|
3090
PUT
CoStar Group
CSGP
$13.3B
| $337K | ﹤0.01% |
+4,000
| New | +$353K |
|
|
NBIS
3091
CALL
Nebius Group N.V.
NBIS
$57.3B
| $337K | ﹤0.01% |
+3,000
| New | +$208K |
|
|
CBIO
3092
Crescent Biopharma
CBIO
$630M
| $337K | ﹤0.01% |
+28,318
| New | +$376K |
|
3093
VanEck Agribusiness ETF
MOO
$1.02B
| $336K | ﹤0.01% |
+4,570
| New | +$338K |
|
3094
Corbus Pharmaceuticals
CRBP
$207M
| $335K | ﹤0.01% |
26,457
-19,044
| -42% | -$181K |
|
3095
Zimmer Biomet
ZBH
$19.3B
| $334K | ﹤0.01% |
+3,393
| New | +$336K |
|
3096
CALL
Qualcomm
QCOM
$166B
| $333K | ﹤0.01% |
+2,000
| New | +$317K |
|
3097
Xos
XOS
$49.6M
| $331K | ﹤0.01% |
+122,745
| New | +$370K |
|
3098
Amplify Etho Climate Leadership US ETF
ETHO
$197M
| $331K | ﹤0.01% |
+5,200
| New | +$318K |
|
3099
PUT
Occidental Petroleum
OXY
$60.1B
| $331K | ﹤0.01% |
+7,000
| New | +$316K |
|
|
CLPR
3100
Clipper Realty
CLPR
$55.4M
| $330K | ﹤0.01% |
86,968
+14,045
| +19% | +$55.8K |
|
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.