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 | |
|---|---|---|---|---|---|---|
3501
CALL
Genuine Parts
GPC
$18.5B
| $1.05M | ﹤0.01% |
+8,900
| New | +$929K |
|
3502
PUT
Herbalife
HLF
$1.33B
| $1.05M | ﹤0.01% |
79,600
| – | – |
|
3503
Compass Minerals
CMP
$1.09B
| $1.05M | ﹤0.01% |
33,605
-2,269
| -6% | -$64.2K |
|
3504
Baidu
BIDU
$31.6B
| $1.05M | ﹤0.01% |
+9,150
| New | +$1.13M |
|
3505
FS KKR Capital
FSK
$3.29B
| $1.05M | ﹤0.01% |
99,589
+35,800
| +56% | +$385K |
|
3506
Intellicheck
IDN
$59.8M
| $1.04M | ﹤0.01% |
254,763
+31,605
| +14% | +$189K |
|
|
IRD
3507
Opus Genetics
IRD
$337M
| $1.04M | ﹤0.01% |
253,962
+145,321
| +134% | +$678K |
|
3508
CALL
Aflac
AFL
$58.2B
| $1.04M | ﹤0.01% |
+8,900
| New | +$1.02M |
|
3509
CALL
Bank of Montreal
BMO
$122B
| $1.04M | ﹤0.01% |
+5,900
| New | +$927K |
|
3510
Protolabs
PRLB
$1.9B
| $1.04M | ﹤0.01% |
12,734
+534
| +4% | +$37.6K |
|
3511
Enanta Pharmaceuticals
ENTA
$392M
| $1.04M | ﹤0.01% |
71,162
-196,202
| -73% | -$2.64M |
|
3512
Real Brokerage
REAX
$575M
| $1.04M | ﹤0.01% |
569,403
+553,203
| +3,415% | +$1.12M |
|
3513
Mine Safety
MSA
$7.31B
| $1.03M | ﹤0.01% |
+5,923
| New | +$992K |
|
3514
Babcock & Wilcox
BW
$1.23B
| $1.03M | ﹤0.01% |
73,211
-741,638
| -91% | -$12.6M |
|
3515
Lear
LEA
$8.56B
| $1.03M | ﹤0.01% |
7,700
-1,700
| -18% | -$228K |
|
3516
CALL
Pool Corp
POOL
$6.83B
| $1.03M | ﹤0.01% |
4,800
+3,800
| +380% | +$758K |
|
3517
PUT
TJX Companies
TJX
$155B
| $1.03M | ﹤0.01% |
6,800
-11,600
| -63% | -$1.83M |
|
3518
PUT
Mastercard
MA
$509B
| $1.03M | ﹤0.01% |
2,000
-2,900
| -59% | -$1.45M |
|
3519
PUT
NextEra Energy
NEE
$174B
| $1.03M | ﹤0.01% |
11,700
+8,200
| +234% | +$742K |
|
3520
CALL
Generac Holdings
GNRC
$12.2B
| $1.02M | ﹤0.01% |
+3,500
| New | +$877K |
|
3521
Bank First Corp
BFC
$1.69B
| $1.02M | ﹤0.01% |
6,896
-28,831
| -81% | -$4.11M |
|
3522
PUT
Chubb
CB
$132B
| $1.02M | ﹤0.01% |
+3,000
| New | +$979K |
|
3523
Teradata
TDC
$2.58B
| $1.02M | ﹤0.01% |
29,500
-139,683
| -83% | -$4.25M |
|
3524
PUT
Nutrien
NTR
$35.9B
| $1.02M | ﹤0.01% |
+16,200
| New | +$1.13M |
|
|
RAPP
3525
Rapport Therapeutics
RAPP
$2.31B
| $1.02M | ﹤0.01% |
24,470
-3,633
| -13% | -$134K |
|
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.