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 | |
|---|---|---|---|---|---|---|
1301
Texas Roadhouse
TXRH
$13.5B
| $12.4M | 0.01% |
64,000
-283,176
| -82% | -$48.2M |
|
1302
PUT
Applied Materials
AMAT
$384B
| $12.4M | 0.01% |
17,100
+5,100
| +43% | +$2.35M |
|
|
VGNT
1303
Versigent PLC
VGNT
$3.33B
| $12.4M | 0.01% |
+294,161
| New | +$11.7M |
|
1304
Curtiss-Wright
CW
$22.7B
| $12.4M | 0.01% |
16,300
-25,011
| -61% | -$18.3M |
|
1305
PUT
Microsoft
MSFT
$3.62T
| $12.3M | 0.01% |
33,100
-18,800
| -36% | -$7.61M |
|
1306
Select Water Solutions
WTTR
$2.48B
| $12.3M | 0.01% |
617,238
+452,845
| +275% | +$7.93M |
|
1307
Recursion Pharmaceuticals
RXRX
$1.74B
| $12.3M | 0.01% |
3,353,658
-712,657
| -18% | -$2.37M |
|
1308
CEVA Inc
CEVA
$751M
| $12.3M | 0.01% |
260,476
-42,358
| -14% | -$1.5M |
|
|
SNDK
1309
PUT
Sandisk
SNDK
$219B
| $12.3M | 0.01% |
5,400
-17,700
| -77% | -$25.3M |
|
1310
Mercantile Bank Corp
MBWM
$1.04B
| $12.3M | 0.01% |
213,740
+32,093
| +18% | +$1.69M |
|
1311
Opendoor
OPEN
$3.33B
| $12.3M | 0.01% |
2,656,469
-4,117,563
| -61% | -$19.7M |
|
1312
Southside Bancshares
SBSI
$956M
| $12.3M | 0.01% |
348,461
-46,359
| -12% | -$1.54M |
|
1313
Autodesk
ADSK
$53.7B
| $12.2M | 0.01% |
62,994
+7,984
| +15% | +$1.82M |
|
|
TRTX
1314
TPG RE Finance Trust
TRTX
$600M
| $12.2M | 0.01% |
1,458,255
-416,874
| -22% | -$3.48M |
|
1315
T. Rowe Price Blue Chip Growth ETF
TCHP
$2.15B
| $12.2M | 0.01% |
243,600
-28,000
| -10% | -$1.4M |
|
1316
nLIGHT
LASR
$2.54B
| $12.2M | 0.01% |
175,200
+17,880
| +11% | +$1.25M |
|
1317
American Financial Group
AFG
$12B
| $12.1M | 0.01% |
86,750
-236,770
| -73% | -$31.4M |
|
1318
Ennis
EBF
$544M
| $12.1M | 0.01% |
571,035
+28,872
| +5% | +$600K |
|
1319
PUT
Cisco
CSCO
$434B
| $12.1M | 0.01% |
103,100
-30,000
| -23% | -$3.14M |
|
1320
PUT
Constellation Energy
CEG
$96.9B
| $12.1M | 0.01% |
48,600
+29,300
| +152% | +$8.25M |
|
1321
Ocular Therapeutix
OCUL
$2.37B
| $12M | 0.01% |
1,218,513
-611,646
| -33% | -$5.54M |
|
1322
DT Midstream
DTM
$12.8B
| $12M | 0.01% |
81,477
-595,134
| -88% | -$84.2M |
|
1323
Koppers
KOP
$867M
| $11.9M | 0.01% |
266,052
-151,484
| -36% | -$6.2M |
|
1324
Methode Electronics
MEI
$498M
| $11.9M | 0.01% |
629,659
-70,290
| -10% | -$726K |
|
1325
Steris
STE
$23.2B
| $11.9M | 0.01% |
56,707
-422,439
| -88% | -$90.6M |
|
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.