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 | |
|---|---|---|---|---|---|---|
26
Walmart Inc
WMT
$825B
| $248M | 0.37% |
2,406,858
+2,255,971
| +1,495% | +$225M |
|
27
Adobe
ADBE
$109B
| $248M | 0.37% |
702,326
+33,688
| +5% | +$12.1M |
|
28
Astera Labs
ALAB
$49.4B
| $247M | 0.37% |
1,263,510
+464,224
| +58% | +$76.3M |
|
29
Boston Scientific
BSX
$73B
| $247M | 0.37% |
2,531,581
+65,205
| +3% | +$6.75M |
|
30
Nu Holdings
NU
$70.4B
| $247M | 0.37% |
15,424,872
+8,265,475
| +115% | +$115M |
|
31
Rivian
RIVN
$24.6B
| $247M | 0.37% |
16,794,685
+2,395,584
| +17% | +$32.1M |
|
32
Intuitive Surgical
ISRG
$134B
| $246M | 0.37% |
551,017
+150,146
| +37% | +$72.1M |
|
33
Interactive Brokers
IBKR
$42.5B
| $246M | 0.37% |
3,575,453
+552,725
| +18% | +$34.8M |
|
34
Bristol-Myers Squibb
BMY
$137B
| $246M | 0.37% |
5,453,357
+4,588,601
| +531% | +$214M |
|
|
SCHW
35
Charles Schwab
SCHW
$194B
| $244M | 0.36% |
2,555,620
-288,306
| -10% | -$27.4M |
|
36
Netflix
NFLX
$331B
| $244M | 0.36% |
2,031,900
-120,260
| -6% | -$14.7M |
|
37
Union Pacific
UNP
$183B
| $243M | 0.36% |
1,029,076
+9,544
| +0.9% | +$2.15M |
|
|
38
Advanced Micro Devices
AMD
$773B
| $243M | 0.36% |
1,501,331
+1,456,403
| +3,242% | +$235M |
|
39
Honeywell
HON
$68.4B
| $243M | 0.36% |
1,224,133
+990,649
| +424% | +$207M |
|
|
SPYM
40
State Street SPDR Portfolio S&P 500 ETF
SPYM
$169B
| $242M | 0.36% |
3,083,300
+664,300
| +27% | +$50.1M |
|
41
TSMC
TSM
$2.17T
| $241M | 0.36% |
864,427
+823,371
| +2,005% | +$201M |
|
42
Iris Energy
IREN
$15B
| $241M | 0.36% |
5,143,276
+4,207,667
| +450% | +$102M |
|
43
T-Mobile US
TMUS
$196B
| $241M | 0.36% |
1,007,577
-16,609
| -2% | -$4.02M |
|
44
TJX Companies
TJX
$155B
| $240M | 0.36% |
1,660,004
+1,634,417
| +6,388% | +$217M |
|
|
45
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$46.4B
| $240M | 0.36% |
517,080
+511,430
| +9,052% | +$231M |
|
46
Alphabet (Google) Class A
GOOGL
$4.22T
| $235M | 0.35% |
968,128
-454,015
| -32% | -$95.1M |
|
47
Salesforce
CRM
$171B
| $235M | 0.35% |
991,388
-1,999
| -0.2% | -$504K |
|
48
Roblox
RBLX
$27.4B
| $235M | 0.35% |
1,693,356
-788,667
| -32% | -$98M |
|
|
49
Accenture
ACN
$113B
| $234M | 0.35% |
948,139
+944,639
| +26,990% | +$246M |
|
50
SoFi Technologies
SOFI
$24.4B
| $232M | 0.35% |
8,799,706
-5,441,879
| -38% | -$129M |
|
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.