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 |
Intuit
INTU
|
+$753M |
| 2 |
Boston Scientific
BSX
|
+$540M |
| 3 |
Dow Inc
DOW
|
+$485M |
| 4 |
Wells Fargo
WFC
|
+$457M |
| 5 |
Goldman Sachs
GS
|
+$378M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$1.32B |
| 2 |
NVIDIA
NVDA
|
+$1.02B |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$787M |
| 4 |
SNDK
Sandisk
SNDK
|
+$744M |
| 5 |
Dell
DELL
|
+$688M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 19.71% |
| 2 | Financials | 15.22% |
| 3 | Healthcare | 11.94% |
| 4 | Industrials | 11.55% |
| 5 | Consumer Discretionary | 9.6% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2976
Hartford Multifactor US Equity ETF
ROUS
$752M
| $1.86M | ﹤0.01% |
+27,600
| New | +$1.78M |
|
2977
New Oriental
EDU
$8.88B
| $1.86M | ﹤0.01% |
40,494
+8,375
| +26% | +$426K |
|
|
SSEA
2978
Starry Sea Acquisition Corp
SSEA
| $1.86M | ﹤0.01% |
181,250
| – | – |
|
|
OCAC.U
2979
Ocean Capital Acquisition Corp Units
OCAC.U
| $1.85M | ﹤0.01% |
+181,250
| New | +$1.85M |
|
2980
KBR
KBR
$4.86B
| $1.85M | ﹤0.01% |
53,484
-1,056,979
| -95% | -$36.9M |
|
2981
Deluxe
DLX
$1.08B
| $1.85M | ﹤0.01% |
+77,335
| New | +$2.01M |
|
2982
Ryder
R
$9.58B
| $1.85M | ﹤0.01% |
7,000
+300
| +4% | +$73.3K |
|
2983
Surrozen
SRZN
$282M
| $1.85M | ﹤0.01% |
71,119
+31,637
| +80% | +$869K |
|
2984
Replimune Group
REPL
$1.39B
| $1.84M | ﹤0.01% |
166,592
-178,159
| -52% | -$1.09M |
|
|
BCYC
2985
Bicycle Therapeutics
BCYC
$306M
| $1.84M | ﹤0.01% |
434,577
+269,777
| +164% | +$1.24M |
|
2986
Caribou Biosciences
CRBU
$178M
| $1.84M | ﹤0.01% |
1,046,279
-713,655
| -41% | -$1.41M |
|
2987
CALL
Occidental Petroleum
OXY
$61.3B
| $1.84M | ﹤0.01% |
37,900
+15,600
| +70% | +$886K |
|
|
PPLI
2988
People Inc
PPLI
$2.86B
| $1.84M | ﹤0.01% |
39,830
+12,413
| +45% | +$530K |
|
2989
Kura Oncology
KURA
$1.06B
| $1.84M | ﹤0.01% |
167,581
-190,374
| -53% | -$1.8M |
|
2990
Nicolet Bankshares
NIC
$3.63B
| $1.84M | ﹤0.01% |
+11,115
| New | +$1.64M |
|
|
PLUN.U
2991
Plutonian Acquisition Corp II Units
PLUN.U
| $1.84M | ﹤0.01% |
+181,250
| New | +$1.83M |
|
2992
Mama's Creations
MAMA
$764M
| $1.84M | ﹤0.01% |
+102,913
| New | +$1.56M |
|
2993
Alexandria Real Estate Equities
ARE
$9.21B
| $1.83M | ﹤0.01% |
34,700
-26,170
| -43% | -$1.25M |
|
|
EMIS
2994
Emmis Acquisition Corp
EMIS
$161M
| $1.83M | ﹤0.01% |
181,250
| – | – |
|
|
OTAI.U
2995
Starlink AI Acquisition Corp Units
OTAI.U
| $1.83M | ﹤0.01% |
+181,250
| New | +$1.83M |
|
2996
PUT
Iris Energy
IREN
$15B
| $1.83M | ﹤0.01% |
40,000
+10,000
| +33% | +$520K |
|
|
LAFA
2997
LaFayette Acquisition Corp
LAFA
$159M
| $1.83M | ﹤0.01% |
181,250
| – | – |
|
2998
CALL
KKR & Co
KKR
$97.4B
| $1.83M | ﹤0.01% |
19,900
+16,900
| +563% | +$1.64M |
|
2999
CALL
Tractor Supply
TSCO
$18.2B
| $1.82M | ﹤0.01% |
57,700
+42,000
| +268% | +$1.45M |
|
3000
PUT
Toronto Dominion Bank
TD
$194B
| $1.82M | ﹤0.01% |
15,000
-1,600
| -10% | -$175K |
|
Similar funds
John Overdeck's Q2 2026 Portfolio in Review
As of Q2 2026, John Overdeck held 5,589 positions worth $138B, up 11% from $124B the previous quarter. Its ten largest holdings account for 8.3% of the portfolio.
John Overdeck withdrew a net $4.38B in Q2 2026, closing 572 positions and reducing 1,756 holdings. Its most notable exit was State Street Technology Select Sector SPDR ETF, an estimated $172M position sold in full.
By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 19% a quarter earlier, followed by Financials and Healthcare.
Against the trend, John Overdeck opened a new position in Intuit worth $564M.
- John Overdeck's largest Q2 2026 buy was Intuit: 2,161,507 shares worth $564M.
- John Overdeck added most to Boston Scientific in Q2 2026, an estimated $540M increase.
- John Overdeck's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $1.32B.
- John Overdeck fully exited State Street Technology Select Sector SPDR ETF in Q2 2026, selling an estimated $172M.
- John Overdeck's ten largest holdings make up 8.3% of its $138B portfolio in Q2 2026.
- John Overdeck opened 1,050 new positions and closed 572 in Q2 2026.
- John Overdeck's portfolio value rose 11% quarter-over-quarter to $138B.
Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.