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 | |
|---|---|---|---|---|---|---|
|
ACH
1376
Accendra Health
ACH
$89.2M
| $5.08M | 0.01% |
1,059,371
+356,653
| +51% | +$2.27M |
|
1377
S&T Bancorp
STBA
$1.77B
| $5.08M | 0.01% |
135,174
+44,058
| +48% | +$1.69M |
|
1378
Veeco
VECO
$2.86B
| $5.07M | 0.01% |
166,729
-206,995
| -55% | -$4.93M |
|
1379
Icon
ICLR
$13.4B
| $5.07M | 0.01% |
28,961
-103,664
| -78% | -$17.3M |
|
1380
Oaktree Specialty Lending
OCSL
$1.16B
| $5.07M | 0.01% |
388,157
+267,318
| +221% | +$3.68M |
|
1381
ServiceNow
NOW
$132B
| $5.04M | 0.01% |
27,410
-89,390
| -77% | -$16.7M |
|
1382
ASML
ASML
$668B
| $5.04M | 0.01% |
5,209
-241,474
| -98% | -$190M |
|
|
GLDD
1383
DELISTED
Great Lakes Dredge & Dock
GLDD
| $5.04M | 0.01% |
420,497
+71,677
| +21% | +$831K |
|
1384
NextEra Energy
NEE
$175B
| $5.03M | 0.01% |
66,684
-146,452
| -69% | -$10.7M |
|
|
CYBR
1385
DELISTED
CyberArk
CYBR
| $5.03M | 0.01% |
10,419
+1
| +0% | +$429 |
|
1386
Invesco KBW Property & Casualty Insurance ETF
KBWP
$290M
| $5.03M | 0.01% |
40,700
+14,300
| +54% | +$1.72M |
|
|
WCLD
1387
WisdomTree Cloud Computing Fund
WCLD
$334M
| $5.03M | 0.01% |
143,086
-12,400
| -8% | -$438K |
|
1388
EastGroup Properties
EGP
$10.9B
| $5.03M | 0.01% |
29,700
+20,017
| +207% | +$3.32M |
|
1389
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.79B
| $5M | 0.01% |
+37,799
| New | +$4.88M |
|
1390
Cognizant
CTSH
$28B
| $5M | 0.01% |
+74,496
| New | +$5.39M |
|
1391
Vera Therapeutics
VERA
$2.43B
| $4.99M | 0.01% |
171,659
+42,524
| +33% | +$983K |
|
1392
Chipotle Mexican Grill
CMG
$48.1B
| $4.98M | 0.01% |
+127,200
| New | +$5.73M |
|
1393
APi Group
APG
$17.6B
| $4.98M | 0.01% |
144,965
-168,510
| -54% | -$5.88M |
|
1394
Shopify
SHOP
$193B
| $4.96M | 0.01% |
33,400
-52,230
| -61% | -$7.08M |
|
1395
NOV
NOV
$7.04B
| $4.96M | 0.01% |
374,460
+339,485
| +971% | +$4.39M |
|
1396
Argan
AGX
$6.57B
| $4.96M | 0.01% |
18,371
-121,218
| -87% | -$27.8M |
|
1397
PUT
ExxonMobil
XOM
$675B
| $4.96M | 0.01% |
+44,000
| New | +$4.89M |
|
|
LPAA
1398
Launch One Acquisition Corp
LPAA
| $4.96M | 0.01% |
472,012
-27,988
| -6% | -$292K |
|
|
SOCA
1399
Solarius Capital Acquisition Corp
SOCA
$242M
| $4.95M | 0.01% |
+497,161
| New | +$4.96M |
|
1400
Nutanix
NTNX
$18B
| $4.95M | 0.01% |
66,528
-345,341
| -84% | -$25.3M |
|
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.