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 | |
|---|---|---|---|---|---|---|
2276
Liberty All-Star Equity Fund
USA
$1.84B
| $1.42M | ﹤0.01% |
+224,023
| New | +$1.48M |
|
2277
Future Fuel
FF
$236M
| $1.42M | ﹤0.01% |
365,960
+80,418
| +28% | +$317K |
|
2278
Marriott Vacations Worldwide
VAC
$4.02B
| $1.42M | ﹤0.01% |
+21,293
| New | +$1.64M |
|
2279
LSI Industries
LYTS
$758M
| $1.41M | ﹤0.01% |
59,774
+737
| +1% | +$15K |
|
2280
Simpson Manufacturing
SSD
$7.65B
| $1.41M | ﹤0.01% |
8,423
-6,501
| -44% | -$1.16M |
|
2281
LifeMD
LFMD
$157M
| $1.41M | ﹤0.01% |
207,528
-242,999
| -54% | -$2.01M |
|
2282
PUT
Iris Energy
IREN
$15.1B
| $1.41M | ﹤0.01% |
+30,000
| New | +$729K |
|
2283
Nuveen ESG Large-Cap Growth ETF
NULG
$2.73B
| $1.4M | ﹤0.01% |
+14,100
| New | +$1.37M |
|
2284
Enova International
ENVA
$6.06B
| $1.4M | ﹤0.01% |
12,159
-4,083
| -25% | -$467K |
|
2285
Woodside Energy
WDS
$43.5B
| $1.4M | ﹤0.01% |
92,946
+3,700
| +4% | +$61K |
|
2286
PUT
Lockheed Martin
LMT
$128B
| $1.4M | ﹤0.01% |
+2,800
| New | +$1.27M |
|
|
CNTA
2287
DELISTED
Centessa Pharmaceuticals
CNTA
| $1.39M | ﹤0.01% |
57,444
-14,700
| -20% | -$261K |
|
2288
First Mid Bancshares
FMBH
$1.33B
| $1.39M | ﹤0.01% |
36,766
+12,168
| +49% | +$475K |
|
|
ASG
2289
Liberty All-Star Growth Fund
ASG
$333M
| $1.39M | ﹤0.01% |
250,567
-49,389
| -16% | -$272K |
|
|
MH
2290
McGraw Hill
MH
$2.49B
| $1.39M | ﹤0.01% |
+110,470
| New | +$1.6M |
|
2291
Middlesex Water
MSEX
$1.11B
| $1.39M | ﹤0.01% |
+25,593
| New | +$1.37M |
|
|
DAY
2292
DELISTED
Dayforce
DAY
| $1.38M | ﹤0.01% |
20,100
+6,600
| +49% | +$411K |
|
2293
Achieve Life Sciences
ACHV
$841M
| $1.38M | ﹤0.01% |
+439,064
| New | +$1.21M |
|
|
GRVY
2294
GRAVITY
GRVY
$508M
| $1.38M | ﹤0.01% |
21,587
+8,427
| +64% | +$540K |
|
|
TDAC
2295
Translational Development Acquisition Corp
TDAC
$209M
| $1.38M | ﹤0.01% |
+133,325
| New | +$1.38M |
|
2296
GoPro
GPRO
$112M
| $1.37M | ﹤0.01% |
648,473
-898,439
| -58% | -$1.34M |
|
2297
Arhaus
ARHS
$1.26B
| $1.37M | ﹤0.01% |
129,203
-52,085
| -29% | -$548K |
|
2298
Bioventus
BVS
$962M
| $1.37M | ﹤0.01% |
+205,026
| New | +$1.42M |
|
2299
Business First Bancshares
BFST
$1.01B
| $1.37M | ﹤0.01% |
57,982
+22,356
| +63% | +$553K |
|
2300
Simulations Plus
SLP
$372M
| $1.37M | ﹤0.01% |
+90,725
| New | +$1.32M |
|
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.