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 | |
|---|---|---|---|---|---|---|
751
Silgan Holdings
SLGN
$4.49B
| $30.9M | 0.02% |
666,541
+384,473
| +136% | +$15.4M |
|
752
Innodata
INOD
$1.96B
| $30.9M | 0.02% |
408,976
+69,005
| +20% | +$5.07M |
|
|
LADR
753
Ladder Capital
LADR
$1.27B
| $30.8M | 0.02% |
3,096,940
+284,937
| +10% | +$2.89M |
|
754
Herbalife
HLF
$1.32B
| $30.7M | 0.02% |
2,337,889
+91,624
| +4% | +$1.26M |
|
755
Albany International
AIN
$1.66B
| $30.7M | 0.02% |
412,149
-21,937
| -5% | -$1.37M |
|
756
Marvell Technology
MRVL
$206B
| $30.7M | 0.02% |
102,923
+13,523
| +15% | +$2.71M |
|
757
National Bank Holdings
NBHC
$1.86B
| $30.6M | 0.02% |
689,242
+116,509
| +20% | +$4.92M |
|
758
Atkore
ATKR
$3.16B
| $30.6M | 0.02% |
402,131
+49,131
| +14% | +$3.7M |
|
759
Kaiser Aluminum
KALU
$2.49B
| $30.6M | 0.02% |
156,166
+35,535
| +29% | +$6.04M |
|
760
SLM Corp
SLM
$4.95B
| $30.5M | 0.02% |
1,176,708
-300,463
| -20% | -$6.77M |
|
761
Alcon
ALC
$35.6B
| $30.5M | 0.02% |
454,562
-131,038
| -22% | -$9.18M |
|
762
LeMaitre Vascular
LMAT
$1.83B
| $30.4M | 0.02% |
316,528
+34,550
| +12% | +$3.54M |
|
763
State Street SPDR S&P Semiconductor ETF
XSD
$2.59B
| $30.3M | 0.02% |
+48,640
| New | +$25.5M |
|
764
VF Corp
VFC
$5.63B
| $30.2M | 0.02% |
1,810,682
+563,852
| +45% | +$10.1M |
|
765
PUT
Astera Labs
ALAB
$48.1B
| $30.2M | 0.02% |
62,500
-67,900
| -52% | -$18M |
|
766
American Express
AXP
$228B
| $30.1M | 0.02% |
89,126
+66,077
| +287% | +$21.2M |
|
767
Merit Medical Systems
MMSI
$5.39B
| $30.1M | 0.02% |
434,687
+323,620
| +291% | +$21.3M |
|
768
PUT
Tesla
TSLA
$1.38T
| $30.1M | 0.02% |
71,600
-30,700
| -30% | -$12.2M |
|
769
Boise Cascade
BCC
$2.87B
| $30.1M | 0.02% |
387,542
+31,684
| +9% | +$2.35M |
|
770
First Commonwealth Financial
FCF
$2.12B
| $30.1M | 0.02% |
1,478,338
+395,459
| +37% | +$7.47M |
|
771
ProPetro Holding
PUMP
$1.33B
| $30M | 0.02% |
2,093,342
+1,148,312
| +122% | +$17.8M |
|
772
CALL
Nike
NKE
$60.5B
| $29.9M | 0.02% |
727,900
+355,400
| +95% | +$15.6M |
|
773
OFG Bancorp
OFG
$2.21B
| $29.9M | 0.02% |
608,895
+96,937
| +19% | +$4.39M |
|
774
Wabtec
WAB
$50.3B
| $29.8M | 0.02% |
110,638
-201,268
| -65% | -$53.2M |
|
775
PUT
CrowdStrike
CRWD
$194B
| $29.7M | 0.02% |
155,600
+7,200
| +5% | +$1.02M |
|
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.