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 | |
|---|---|---|---|---|---|---|
2201
First Trust Nasdaq Bank ETF
FTXO
$304M
| $1.59M | ﹤0.01% |
44,600
-500
| -1% | -$17.4K |
|
2202
QuinStreet
QNST
$1.15B
| $1.59M | ﹤0.01% |
102,620
+66,120
| +181% | +$1.05M |
|
|
NXDR
2203
Nextdoor Holdings
NXDR
$925M
| $1.59M | ﹤0.01% |
759,344
+76,640
| +11% | +$149K |
|
2204
State Street SPDR Portfolio S&P 600 Small Cap ETF
SPSM
$17.1B
| $1.58M | ﹤0.01% |
+34,200
| New | +$1.53M |
|
2205
Northwest Natural Holdings
NWN
$2.1B
| $1.58M | ﹤0.01% |
35,104
-33,410
| -49% | -$1.39M |
|
|
LOVE
2206
LoveSac
LOVE
$233M
| $1.58M | ﹤0.01% |
93,133
+10,070
| +12% | +$187K |
|
2207
Global Industrial
GIC
$1.51B
| $1.58M | ﹤0.01% |
42,978
-56,735
| -57% | -$1.9M |
|
|
ONCH
2208
1RT Acquisition Corp
ONCH
$222M
| $1.57M | ﹤0.01% |
+150,624
| New | +$1.55M |
|
2209
AngioDynamics
ANGO
$659M
| $1.57M | ﹤0.01% |
140,730
+93,815
| +200% | +$905K |
|
2210
Forrester Research
FORR
$229M
| $1.57M | ﹤0.01% |
148,024
+55,058
| +59% | +$558K |
|
|
DTSQ
2211
DT Cloud Star Acquisition Corp
DTSQ
$41.4M
| $1.57M | ﹤0.01% |
150,000
| – | – |
|
|
CAPN
2212
Cayson Acquisition Corp
CAPN
$59.5M
| $1.57M | ﹤0.01% |
150,000
| – | – |
|
|
SHOE
2213
Shoe Station Group
SHOE
$389M
| $1.56M | ﹤0.01% |
75,265
-57,252
| -43% | -$1.24M |
|
2214
Ouster
OUST
$2.61B
| $1.56M | ﹤0.01% |
57,802
-156,295
| -73% | -$4.36M |
|
2215
NexGen Energy
NXE
$7.52B
| $1.56M | ﹤0.01% |
+174,525
| New | +$1.29M |
|
2216
Harmonic Inc
HLIT
$1.34B
| $1.56M | ﹤0.01% |
153,297
+83,693
| +120% | +$789K |
|
2217
WisdomTree US Multifactor Fund
USMF
$286M
| $1.56M | ﹤0.01% |
+29,800
| New | +$1.53M |
|
2218
Quad
QUAD
$526M
| $1.56M | ﹤0.01% |
248,685
+74,055
| +42% | +$456K |
|
2219
StealthGas
GASS
$348M
| $1.55M | ﹤0.01% |
237,238
+56,493
| +31% | +$392K |
|
|
BWAY
2220
Brainsway
BWAY
$580M
| $1.55M | ﹤0.01% |
205,804
+41,412
| +25% | +$286K |
|
2221
PUT
Centrus Energy
LEU
$3.86B
| $1.55M | ﹤0.01% |
+5,000
| New | +$1.11M |
|
|
VBTX
2222
DELISTED
Veritex Holdings
VBTX
| $1.55M | ﹤0.01% |
46,221
-186,586
| -80% | -$6.02M |
|
2223
Sabra Healthcare REIT
SBRA
$5.32B
| $1.55M | ﹤0.01% |
+83,127
| New | +$1.55M |
|
2224
Colony Bankcorp
CBAN
$449M
| $1.55M | ﹤0.01% |
91,031
-5,941
| -6% | -$101K |
|
2225
Texas Capital Bancshares
TCBI
$4.29B
| $1.55M | ﹤0.01% |
18,311
+14,880
| +434% | +$1.27M |
|
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.