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 | |
|---|---|---|---|---|---|---|
526
Canadian Pacific Kansas City
CP
$85B
| $24.4M | 0.04% |
327,050
+146,429
| +81% | +$11.2M |
|
527
Kymera Therapeutics
KYMR
$9.96B
| $24.3M | 0.04% |
429,975
+270,812
| +170% | +$12.2M |
|
528
MongoDB
MDB
$34.7B
| $24.3M | 0.04% |
78,407
-135,382
| -63% | -$34.8M |
|
529
Vanguard Dividend Appreciation ETF
VIG
$114B
| $24.3M | 0.04% |
112,600
-10,903
| -9% | -$2.29M |
|
530
National Health Investors
NHI
$3.6B
| $24.3M | 0.04% |
305,397
+108,754
| +55% | +$8.14M |
|
531
Robert Half
RHI
$4.58B
| $24.1M | 0.04% |
709,170
+300,283
| +73% | +$11.3M |
|
532
Cardinal Health
CAH
$53.4B
| $24.1M | 0.04% |
153,424
-844,727
| -85% | -$130M |
|
533
Euronet Worldwide
EEFT
$2.62B
| $24M | 0.04% |
273,837
+205,248
| +299% | +$19.7M |
|
534
Innodata
INOD
$2.21B
| $23.9M | 0.04% |
310,334
-80,397
| -21% | -$4.06M |
|
535
Coca-Cola Consolidated
COKE
$12.6B
| $23.8M | 0.04% |
203,269
+127,783
| +169% | +$14.8M |
|
536
Walker & Dunlop
WD
$1.38B
| $23.8M | 0.04% |
284,067
+200,074
| +238% | +$16.1M |
|
537
e.l.f. Beauty
ELF
$6.02B
| $23.7M | 0.04% |
178,635
+124,646
| +231% | +$15.4M |
|
538
iShares Core S&P US Value ETF
IUSV
$28B
| $23.6M | 0.04% |
+235,800
| New | +$23M |
|
539
GlobalFoundries
GFS
$26.4B
| $23.6M | 0.04% |
657,269
+622,480
| +1,789% | +$22.2M |
|
540
Jackson Financial
JXN
$8.8B
| $23.5M | 0.04% |
232,624
+114,954
| +98% | +$10.7M |
|
|
ALE
541
DELISTED
Allete
ALE
| $23.5M | 0.04% |
353,755
+169,200
| +92% | +$11M |
|
542
Dimensional US Targeted Value ETF
DFAT
$14.7B
| $23.5M | 0.03% |
+403,300
| New | +$23M |
|
543
Amdocs
DOX
$6.41B
| $23.3M | 0.03% |
284,089
+19,700
| +7% | +$1.71M |
|
544
Gerdau
GGB
$8.5B
| $23.2M | 0.03% |
7,491,210
-299,818
| -4% | -$907K |
|
545
Insperity
NSP
$2.02B
| $23.2M | 0.03% |
470,820
+403,679
| +601% | +$22.1M |
|
546
APA Corp
APA
$15.2B
| $23M | 0.03% |
947,947
-1,000,519
| -51% | -$21.1M |
|
547
Northrop Grumman
NOC
$78.3B
| $22.7M | 0.03% |
37,320
-39,749
| -52% | -$22.5M |
|
548
Boise Cascade
BCC
$2.88B
| $22.6M | 0.03% |
292,556
+231,302
| +378% | +$19.8M |
|
549
WisdomTree
WT
$3.56B
| $22.6M | 0.03% |
1,624,237
+392,532
| +32% | +$5.24M |
|
550
Portland General Electric
POR
$5.83B
| $22.5M | 0.03% |
511,890
+42,675
| +9% | +$1.79M |
|
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.