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 | |
|---|---|---|---|---|---|---|
|
PGAC
1826
Pantages Capital Acquisition Corp
PGAC
| $2.79M | ﹤0.01% |
271,875
| – | – |
|
1827
Axogen
AXGN
$2.67B
| $2.79M | ﹤0.01% |
156,331
+145,371
| +1,326% | +$2.11M |
|
|
IPEX
1828
Inflection Point Acquisition Corp V
IPEX
$126M
| $2.78M | ﹤0.01% |
271,875
| – | – |
|
|
BBUC
1829
Brookfield Business Corp Class A Subordinate Voting Shares
BBUC
$5.76B
| $2.78M | ﹤0.01% |
83,002
+40,471
| +95% | +$1.31M |
|
|
EFOR
1830
Everforth Inc
EFOR
$1.3B
| $2.78M | ﹤0.01% |
+58,773
| New | +$3M |
|
1831
Astronics
ATRO
$3.22B
| $2.78M | ﹤0.01% |
73,202
-71,691
| -49% | -$2.18M |
|
1832
PUT
Hercules Capital
HTGC
$3.28B
| $2.78M | ﹤0.01% |
146,900
| – | – |
|
1833
CALL
Costco
COST
$428B
| $2.78M | ﹤0.01% |
+3,000
| New | +$2.88M |
|
|
BAND
1834
Bandwidth Inc
BAND
$1.48B
| $2.77M | ﹤0.01% |
166,464
+72,575
| +77% | +$1.12M |
|
|
PLYM
1835
DELISTED
Plymouth Industrial REIT
PLYM
| $2.77M | ﹤0.01% |
124,152
-232,555
| -65% | -$4.27M |
|
1836
Tecnoglass Holdings
TGLS
$1.81B
| $2.77M | ﹤0.01% |
41,402
-40,650
| -50% | -$3M |
|
1837
Norfolk Southern
NSC
$79.2B
| $2.77M | ﹤0.01% |
9,220
+6,630
| +256% | +$1.84M |
|
|
SEZL
1838
Sezzle
SEZL
$4.14B
| $2.77M | ﹤0.01% |
34,814
-101,755
| -75% | -$11.7M |
|
|
ITRG
1839
Integra Resources
ITRG
$588M
| $2.77M | ﹤0.01% |
938,394
+852,003
| +986% | +$1.71M |
|
1840
Allient
ALNT
$1.61B
| $2.77M | ﹤0.01% |
61,833
+48,088
| +350% | +$2.06M |
|
1841
Shenandoah Telecom
SHEN
$681M
| $2.77M | ﹤0.01% |
206,048
+95,823
| +87% | +$1.32M |
|
|
NPB
1842
Northpointe Bancshares
NPB
$584M
| $2.76M | ﹤0.01% |
161,812
+120,250
| +289% | +$1.96M |
|
1843
Inspire Medical Systems
INSP
$1.77B
| $2.76M | ﹤0.01% |
37,152
+17,802
| +92% | +$1.8M |
|
1844
Bit Digital
BTBT
$570M
| $2.75M | ﹤0.01% |
917,524
+293,659
| +47% | +$891K |
|
1845
Ocular Therapeutix
OCUL
$2.44B
| $2.74M | ﹤0.01% |
234,213
+123,381
| +111% | +$1.48M |
|
1846
Pegasystems
PEGA
$5.59B
| $2.73M | ﹤0.01% |
47,540
-1,200
| -2% | -$66.1K |
|
1847
Tronox
TROX
$872M
| $2.72M | ﹤0.01% |
677,859
-56,224
| -8% | -$257K |
|
1848
CALL
Verizon
VZ
$209B
| $2.72M | ﹤0.01% |
+62,000
| New | +$2.68M |
|
1849
W&T Offshore
WTI
$554M
| $2.72M | ﹤0.01% |
1,495,254
+133,080
| +10% | +$236K |
|
1850
Shoals Technologies Group
SHLS
$1.18B
| $2.71M | ﹤0.01% |
365,849
-161,496
| -31% | -$994K |
|
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.