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 |
iShares Expanded Tech-Software Sector ETF
IGV
|
+$312M |
| 2 |
UnitedHealth
UNH
|
+$286M |
| 3 |
Duolingo
DUOL
|
+$247M |
| 4 |
Aon
AON
|
+$226M |
| 5 |
Chubb
CB
|
+$221M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$338M |
| 2 |
Marvell Technology
MRVL
|
+$241M |
| 3 |
Advanced Micro Devices
AMD
|
+$240M |
| 4 |
ServiceNow
NOW
|
+$203M |
| 5 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$193M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 16.79% |
| 2 | Financials | 14.46% |
| 3 | Healthcare | 12.9% |
| 4 | Consumer Discretionary | 8.97% |
| 5 | Industrials | 8.82% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1826
Clearwater Paper
CLW
$351M
| $1.82M | ﹤0.01% |
66,779
+40,696
| +156% | +$1.1M |
|
1827
LXP Industrial Trust
LXP
$3.6B
| $1.82M | ﹤0.01% |
44,044
-75,143
| -63% | -$3.09M |
|
|
GOLD
1828
Gold.com Inc
GOLD
$1.36B
| $1.81M | ﹤0.01% |
81,770
+1,224
| +2% | +$27.2K |
|
1829
Camden National
CAC
$952M
| $1.81M | ﹤0.01% |
44,681
+1,401
| +3% | +$54.9K |
|
1830
V2X
VVX
$2.4B
| $1.81M | ﹤0.01% |
37,336
+5,095
| +16% | +$242K |
|
1831
Boyd Gaming
BYD
$5.89B
| $1.81M | ﹤0.01% |
23,157
-28,322
| -55% | -$2.02M |
|
1832
Enova International
ENVA
$6.06B
| $1.81M | ﹤0.01% |
16,242
-20,490
| -56% | -$1.96M |
|
1833
Designer Brands
DBI
$280M
| $1.81M | ﹤0.01% |
760,328
+172,363
| +29% | +$520K |
|
1834
Hancock Whitney
HWC
$5.99B
| $1.81M | ﹤0.01% |
31,511
-30,769
| -49% | -$1.64M |
|
1835
Kennametal
KMT
$2.23B
| $1.81M | ﹤0.01% |
78,755
-115,154
| -59% | -$2.4M |
|
1836
Nurix Therapeutics
NRIX
$2.8B
| $1.81M | ﹤0.01% |
158,724
-98,801
| -38% | -$1.07M |
|
1837
Valley National Bancorp
VLY
$7.79B
| $1.81M | ﹤0.01% |
202,269
-349,854
| -63% | -$3.04M |
|
1838
Supernus Pharmaceuticals
SUPN
$2.64B
| $1.81M | ﹤0.01% |
57,305
-39,919
| -41% | -$1.28M |
|
1839
First Trust NASDAQ ABA Community Bank Index Fund
QABA
$91.3M
| $1.8M | ﹤0.01% |
33,300
-9,700
| -23% | -$501K |
|
1840
Amalgamated Financial
AMAL
$1.45B
| $1.8M | ﹤0.01% |
57,818
-19,882
| -26% | -$582K |
|
|
ESPR
1841
DELISTED
Esperion Therapeutics
ESPR
| $1.8M | ﹤0.01% |
1,827,994
-903,293
| -33% | -$904K |
|
1842
NBT Bancorp
NBTB
$2.67B
| $1.8M | ﹤0.01% |
43,296
-18,316
| -30% | -$762K |
|
1843
Bain Capital Specialty
BCSF
$784M
| $1.8M | ﹤0.01% |
119,394
-157,895
| -57% | -$2.41M |
|
|
CLDT
1844
Chatham Lodging
CLDT
$642M
| $1.79M | ﹤0.01% |
257,257
-138,212
| -35% | -$965K |
|
1845
Kura Oncology
KURA
$1.21B
| $1.79M | ﹤0.01% |
310,238
+151,251
| +95% | +$927K |
|
|
TGI
1846
DELISTED
Triumph Group
TGI
| $1.79M | ﹤0.01% |
69,500
+23,000
| +49% | +$586K |
|
1847
Worthington Enterprises
WOR
$2.8B
| $1.79M | ﹤0.01% |
28,114
+8,060
| +40% | +$447K |
|
1848
PTC
PTC
$16.4B
| $1.79M | ﹤0.01% |
10,373
-81,809
| -89% | -$13.2M |
|
|
MREO
1849
Mereo BioPharma
MREO
$45M
| $1.79M | ﹤0.01% |
659,158
+413,952
| +169% | +$999K |
|
1850
First Watch Restaurant Group
FWRG
$802M
| $1.78M | ﹤0.01% |
111,043
+23,485
| +27% | +$394K |
|
Similar funds
John Overdeck's Q2 2025 Portfolio in Review
As of Q2 2025, John Overdeck held 3,681 positions worth $56.5B, up 21% from $46.8B the previous quarter. Its ten largest holdings account for 7.7% of the portfolio.
John Overdeck deployed $2.96B of net new capital in Q2 2025, opening 509 new positions and adding to 1,200 existing holdings. Its largest new stake was iShares Expanded Tech-Software Sector ETF: 3,154,300 shares worth $345M.
By sector, the portfolio is most concentrated in Technology at 17% of assets, down from 18% a quarter earlier, followed by Financials and Healthcare.
On the sell side, the largest reduction was Broadcom, an estimated $338M trimmed.
- John Overdeck's largest Q2 2025 buy was iShares Expanded Tech-Software Sector ETF: 3,154,300 shares worth $345M.
- John Overdeck added most to UnitedHealth in Q2 2025, an estimated $286M increase.
- John Overdeck's biggest Q2 2025 reduction was Broadcom, cutting an estimated $338M.
- John Overdeck fully exited State Street Utilities Select Sector SPDR ETF in Q2 2025, selling an estimated $134M.
- John Overdeck's ten largest holdings make up 7.7% of its $56.5B portfolio in Q2 2025.
- John Overdeck opened 509 new positions and closed 531 in Q2 2025.
- John Overdeck's portfolio value rose 21% quarter-over-quarter to $56.5B.
Based on Two Sigma Investments's 13F filing for Q2 2025, filed 14 Aug 2025.