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 Technology Select Sector SPDR ETF
XLK
|
+$395M |
| 2 |
Vanguard Real Estate ETF
VNQ
|
+$321M |
| 3 |
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
|
+$318M |
| 4 |
ServiceNow
NOW
|
+$272M |
| 5 |
Schwab US REIT ETF
SCHH
|
+$248M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$547M |
| 2 |
State Street Consumer Staples Select Sector SPDR ETF
XLP
|
+$447M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$377M |
| 4 |
iShares MSCI USA Quality Factor ETF
QUAL
|
+$299M |
| 5 |
Alphabet (Google) Class A
GOOGL
|
+$269M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 15.53% |
| 2 | Financials | 13% |
| 3 | Industrials | 11.22% |
| 4 | Healthcare | 10.29% |
| 5 | Consumer Discretionary | 9.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3601
PUT
Pultegroup
PHM
$24.7B
| $235K | ﹤0.01% |
+2,000
| New | +$245K |
|
3602
PUT
Dominion Energy
D
$58.6B
| $234K | ﹤0.01% |
4,000
-6,900
| -63% | -$416K |
|
|
KLRS
3603
Kalaris Therapeutics
KLRS
$97.6M
| $234K | ﹤0.01% |
+27,759
| New | +$177K |
|
3604
CALL
Zions Bancorporation
ZION
$9.91B
| $234K | ﹤0.01% |
+4,000
| New | +$218K |
|
|
FITB
3605
PUT
Fifth Third Bancorp
FITB
$49.8B
| $234K | ﹤0.01% |
+5,000
| New | +$220K |
|
3606
Alpha Teknova
TKNO
$394M
| $234K | ﹤0.01% |
61,463
+24,466
| +66% | +$119K |
|
3607
PUT
HCA Healthcare
HCA
$92.9B
| $233K | ﹤0.01% |
+500
| New | +$232K |
|
3608
CALL
CarMax
KMX
$8.91B
| $232K | ﹤0.01% |
+6,000
| New | +$240K |
|
|
3609
PUT
CarMax
KMX
$8.91B
| $232K | ﹤0.01% |
+6,000
| New | +$240K |
|
3610
CALL
Union Pacific
UNP
$184B
| $231K | ﹤0.01% |
+1,000
| New | +$228K |
|
3611
PUT
Altria Group
MO
$114B
| $231K | ﹤0.01% |
4,000
-6,000
| -60% | -$362K |
|
3612
PUT
Natera
NTRA
$47.2B
| $229K | ﹤0.01% |
+1,000
| New | +$209K |
|
3613
PUT
Pool Corp
POOL
$6.84B
| $229K | ﹤0.01% |
+1,000
| New | +$260K |
|
3614
Hawthorn Bancshares
HWBK
$270M
| $229K | ﹤0.01% |
+6,556
| New | +$210K |
|
3615
PUT
Sysco
SYY
$40.1B
| $228K | ﹤0.01% |
3,100
-600
| -16% | -$45.6K |
|
3616
ETC 6 Meridian Small Cap Equity ETF
SIXS
$146M
| $228K | ﹤0.01% |
+4,500
| New | +$224K |
|
3617
Star Holdings Shares of Beneficial Interest
STHO
$118M
| $228K | ﹤0.01% |
27,703
-2,390
| -8% | -$18.3K |
|
3618
CALL
Antero Resources
AR
$11.7B
| $227K | ﹤0.01% |
+6,600
| New | +$224K |
|
3619
Lifecore Biomedical
LFCR
$172M
| $227K | ﹤0.01% |
+27,803
| New | +$206K |
|
3620
Red Violet
RDVT
$1.13B
| $227K | ﹤0.01% |
3,982
-4,201
| -51% | -$228K |
|
3621
Wipro
WIT
$18.6B
| $227K | ﹤0.01% |
+79,757
| New | +$218K |
|
3622
ATI
ATI
$28.6B
| $226K | ﹤0.01% |
+1,967
| New | +$192K |
|
3623
Corporacion America
CAAP
$3.9B
| $226K | ﹤0.01% |
8,674
-10,576
| -55% | -$237K |
|
3624
Kopin
KOPN
$881M
| $225K | ﹤0.01% |
95,992
-294,231
| -75% | -$850K |
|
3625
XPEL
XPEL
$1.39B
| $225K | ﹤0.01% |
+4,500
| New | +$188K |
|
Similar funds
John Overdeck's Q4 2025 Portfolio in Review
As of Q4 2025, John Overdeck held 4,545 positions worth $70.9B, up 5.5% from $67.2B the previous quarter. Its ten largest holdings account for 4.9% of the portfolio.
John Overdeck's Q4 2025 filing shows 899 new, 1,598 increased, 1,287 reduced and 504 closed positions. Its largest new stake was Vanguard Real Estate ETF: 3,573,400 shares worth $316M. The largest sale was State Street Financial Select Sector SPDR ETF, an estimated $547M.
By sector, the portfolio is most concentrated in Technology at 16% of assets, down from 16% a quarter earlier, followed by Financials and Industrials.
- John Overdeck's largest Q4 2025 buy was Vanguard Real Estate ETF: 3,573,400 shares worth $316M.
- John Overdeck added most to State Street Technology Select Sector SPDR ETF in Q4 2025, an estimated $395M increase.
- John Overdeck's biggest Q4 2025 reduction was State Street Financial Select Sector SPDR ETF, cutting an estimated $547M.
- John Overdeck fully exited State Street SPDR Dow Jones Industrial Average ETF Trust in Q4 2025, selling an estimated $240M.
- John Overdeck's ten largest holdings make up 4.9% of its $70.9B portfolio in Q4 2025.
- John Overdeck opened 899 new positions and closed 504 in Q4 2025.
- John Overdeck's portfolio value rose 5.5% quarter-over-quarter to $70.9B.
Based on Two Sigma Investments's 13F filing for Q4 2025, filed 17 Feb 2026.