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 | |
|---|---|---|---|---|---|---|
|
VSXY
3751
PUT
Victoria's Secret
VSXY
$6.79B
| $760K | ﹤0.01% |
+9,100
| New | +$545K |
|
3752
CALL
TJX Companies
TJX
$155B
| $758K | ﹤0.01% |
5,000
-11,300
| -69% | -$1.79M |
|
|
NVO
3753
Novo Nordisk
NVO
$207B
| $757K | ﹤0.01% |
15,800
-6,270,701
| -100% | -$269M |
|
|
HDSN
3754
Hudson Technologies
HDSN
$237M
| $757K | ﹤0.01% |
131,960
-140,965
| -52% | -$802K |
|
3755
CALL
Eastman Chemical
EMN
$8.47B
| $757K | ﹤0.01% |
+11,300
| New | +$826K |
|
3756
PUT
Toast
TOST
$21.2B
| $757K | ﹤0.01% |
+27,200
| New | +$709K |
|
3757
First Trust NASDAQ ABA Community Bank Index Fund
QABA
$91.8M
| $757K | ﹤0.01% |
11,243
-3,257
| -22% | -$204K |
|
3758
Labcorp
LH
$27.3B
| $756K | ﹤0.01% |
+2,700
| New | +$710K |
|
3759
CALL
Baxter International
BAX
$13.6B
| $755K | ﹤0.01% |
+35,400
| New | +$660K |
|
|
TBI
3760
Trueblue
TBI
$323M
| $752K | ﹤0.01% |
107,860
-26,804
| -20% | -$149K |
|
3761
PUT
ITT
ITT
$18.6B
| $751K | ﹤0.01% |
+3,800
| New | +$768K |
|
3762
Prudential
PUK
$35B
| $751K | ﹤0.01% |
28,000
-4,000
| -13% | -$117K |
|
3763
CALL
Equinor
EQNR
$102B
| $750K | ﹤0.01% |
+23,900
| New | +$893K |
|
3764
Zegna
ZGN
$3.73B
| $750K | ﹤0.01% |
57,632
-119,000
| -67% | -$1.53M |
|
3765
iShares US Home Construction ETF
ITB
$2.27B
| $748K | ﹤0.01% |
+7,164
| New | +$680K |
|
3766
Excelerate Energy
EE
$1.23B
| $748K | ﹤0.01% |
19,700
-110,842
| -85% | -$3.82M |
|
3767
Hawaiian Electric Industries
HE
$1.99B
| $748K | ﹤0.01% |
55,306
-302,975
| -85% | -$4.32M |
|
3768
CALL
Procter & Gamble
PG
$336B
| $748K | ﹤0.01% |
+5,100
| New | +$742K |
|
|
MTLS
3769
Materialise
MTLS
$382M
| $747K | ﹤0.01% |
100,527
-7,456
| -7% | -$44.1K |
|
3770
CALL
Emcor
EME
$34.3B
| $747K | ﹤0.01% |
+900
| New | +$761K |
|
3771
Cytek Biosciences
CTKB
$625M
| $745K | ﹤0.01% |
168,218
+142,618
| +557% | +$609K |
|
3772
CALL
BridgeBio Pharma
BBIO
$15.9B
| $745K | ﹤0.01% |
+10,000
| New | +$700K |
|
3773
First Bancorp
FBNC
$2.68B
| $744K | ﹤0.01% |
11,643
+7,342
| +171% | +$435K |
|
3774
Lyell Immunopharma
LYEL
$381M
| $744K | ﹤0.01% |
52,927
+41,342
| +357% | +$748K |
|
3775
CALL
Williams Companies
WMB
$86.2B
| $743K | ﹤0.01% |
10,000
-21,000
| -68% | -$1.55M |
|
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.