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 | |
|---|---|---|---|---|---|---|
2451
Olema Pharmaceuticals
OLMA
$955M
| $1.07M | ﹤0.01% |
109,526
+17,025
| +18% | +$102K |
|
2452
Inspire 100 ETF
BIBL
$496M
| $1.07M | ﹤0.01% |
+24,100
| New | +$1.03M |
|
|
SVC
2453
Service Properties Trust
SVC
$1.03B
| $1.07M | ﹤0.01% |
78,809
-44,929
| -36% | -$609K |
|
2454
Yext
YEXT
$660M
| $1.07M | ﹤0.01% |
125,332
-263,033
| -68% | -$2.23M |
|
|
NFGC
2455
New Found Gold
NFGC
$784M
| $1.07M | ﹤0.01% |
449,432
+324,723
| +260% | +$571K |
|
2456
nCino
NCNO
$2.28B
| $1.05M | ﹤0.01% |
38,885
-12,896
| -25% | -$377K |
|
2457
Invesco S&P SmallCap Information Technology ETF
PSCT
$484M
| $1.05M | ﹤0.01% |
+19,800
| New | +$955K |
|
2458
FS Bancorp
FSBW
$336M
| $1.05M | ﹤0.01% |
26,316
+3,331
| +14% | +$137K |
|
2459
American Healthcare REIT
AHR
$12.4B
| $1.05M | ﹤0.01% |
24,995
+5,926
| +31% | +$238K |
|
|
TEM
2460
CALL
Tempus AI
TEM
$12.4B
| $1.05M | ﹤0.01% |
+13,000
| New | +$910K |
|
2461
AAR Corp
AIR
$5.45B
| $1.05M | ﹤0.01% |
11,700
+994
| +9% | +$75.7K |
|
2462
Espey Mfg & Electronics Corp
ESP
$186M
| $1.05M | ﹤0.01% |
+26,437
| New | +$1.23M |
|
2463
Waters Corp
WAT
$40.7B
| $1.04M | ﹤0.01% |
3,483
-35,831
| -91% | -$10.8M |
|
2464
Omega Flex
OFLX
$272M
| $1.04M | ﹤0.01% |
33,474
+6,305
| +23% | +$214K |
|
2465
ZipRecruiter
ZIP
$358M
| $1.04M | ﹤0.01% |
246,999
+211,199
| +590% | +$988K |
|
2466
Kadant
KAI
$3.58B
| $1.04M | ﹤0.01% |
3,500
+300
| +9% | +$97.9K |
|
|
LAND
2467
Gladstone Land Corp
LAND
$379M
| $1.04M | ﹤0.01% |
113,629
+48,316
| +74% | +$457K |
|
2468
Compass Minerals
CMP
$1.03B
| $1.04M | ﹤0.01% |
54,076
| – | – |
|
2469
PUT
D-Wave Quantum Inc
QBTS
$7.21B
| $1.04M | ﹤0.01% |
+42,000
| New | +$765K |
|
2470
Corebridge Financial
CRBG
$14.2B
| $1.04M | ﹤0.01% |
+32,300
| New | +$1.1M |
|
2471
ReposiTrak
TRAK
$147M
| $1.03M | ﹤0.01% |
69,741
+30,217
| +76% | +$524K |
|
2472
Ollie's Bargain Outlet
OLLI
$4.51B
| $1.03M | ﹤0.01% |
+8,047
| New | +$1.07M |
|
2473
Crexendo
CXDO
$210M
| $1.03M | ﹤0.01% |
158,853
-27,516
| -15% | -$171K |
|
2474
Silgan Holdings
SLGN
$4.51B
| $1.03M | ﹤0.01% |
23,973
-149,518
| -86% | -$7.23M |
|
2475
State Street SPDR S&P Dividend ETF
SDY
$22.1B
| $1.03M | ﹤0.01% |
+7,359
| New | +$1.03M |
|
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.