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 | |
|---|---|---|---|---|---|---|
|
PMT
1526
PUT
PennyMac Mortgage Investment
PMT
$810M
| $2.79M | ﹤0.01% |
217,100
| – | – |
|
1527
Peapack-Gladstone Financial
PGC
$804M
| $2.79M | ﹤0.01% |
98,683
+25,989
| +36% | +$714K |
|
1528
Fidelity MSCI Communication Services Index ETF
FCOM
$1.78B
| $2.79M | ﹤0.01% |
+43,000
| New | +$2.51M |
|
1529
Principal Exchange-Traded Funds Principal US Small-Cap ETF
PSC
$2.53B
| $2.79M | ﹤0.01% |
+52,300
| New | +$2.6M |
|
1530
Gold Royalty Corp
GROY
$802M
| $2.77M | ﹤0.01% |
1,255,189
+466,235
| +59% | +$818K |
|
1531
Delek US
DK
$4.17B
| $2.77M | ﹤0.01% |
130,919
-139,792
| -52% | -$2.35M |
|
|
PGAC
1532
Pantages Capital Acquisition Corp
PGAC
| $2.77M | ﹤0.01% |
271,875
| – | – |
|
1533
Independent Bank Corp
IBCP
$820M
| $2.76M | ﹤0.01% |
85,037
+35,234
| +71% | +$1.09M |
|
1534
Towne Bank
TOWN
$3.5B
| $2.75M | ﹤0.01% |
80,566
+61,547
| +324% | +$2.05M |
|
|
NFBK
1535
DELISTED
Northfield Bancorp
NFBK
| $2.75M | ﹤0.01% |
239,598
-25,358
| -10% | -$282K |
|
1536
Diodes
DIOD
$4.13B
| $2.75M | ﹤0.01% |
51,993
-46,980
| -47% | -$2.07M |
|
|
IPEX
1537
Inflection Point Acquisition Corp V
IPEX
$126M
| $2.75M | ﹤0.01% |
271,875
| – | – |
|
1538
Titan International
TWI
$454M
| $2.73M | ﹤0.01% |
266,269
+10,146
| +4% | +$78.3K |
|
|
SNCY
1539
DELISTED
Sun Country Airlines
SNCY
| $2.73M | ﹤0.01% |
232,630
+160,756
| +224% | +$1.77M |
|
1540
AZZ Inc
AZZ
$4.23B
| $2.73M | ﹤0.01% |
+28,931
| New | +$2.55M |
|
1541
Banner Corp
BANR
$2.41B
| $2.73M | ﹤0.01% |
42,602
+19,415
| +84% | +$1.2M |
|
1542
Granite Ridge Resources
GRNT
$666M
| $2.73M | ﹤0.01% |
427,863
-9,053
| -2% | -$49.9K |
|
|
SPKL
1543
Spark I Acquisition Corp
SPKL
$100M
| $2.73M | ﹤0.01% |
250,000
| – | – |
|
1544
Northwest Natural Holdings
NWN
$2.11B
| $2.72M | ﹤0.01% |
+68,514
| New | +$2.84M |
|
1545
Par Pacific Holdings
PARR
$3.72B
| $2.71M | ﹤0.01% |
102,214
-154,798
| -60% | -$2.95M |
|
1546
TriplePoint Venture Growth BDC
TPVG
$217M
| $2.71M | ﹤0.01% |
386,248
-156,847
| -29% | -$1.03M |
|
1547
Invesco Dorsey Wright Momentum ETF
PDP
$1.45B
| $2.71M | ﹤0.01% |
+24,933
| New | +$2.55M |
|
1548
Belden
BDC
$4.56B
| $2.7M | ﹤0.01% |
+23,342
| New | +$2.45M |
|
1549
Global Industrial
GIC
$1.51B
| $2.69M | ﹤0.01% |
99,713
+1,212
| +1% | +$30.4K |
|
1550
CGI
GIB
$15.5B
| $2.69M | ﹤0.01% |
25,687
-156,831
| -86% | -$16.5M |
|
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.