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 | |
|---|---|---|---|---|---|---|
251
Black Hills Corp
BKH
$5.47B
| $124M | 0.09% |
1,663,178
-552,825
| -25% | -$40.7M |
|
252
Intuitive Machines
LUNR
$2.94B
| $123M | 0.09% |
5,752,300
+4,846,745
| +535% | +$136M |
|
253
FNB Corp
FNB
$6.6B
| $123M | 0.09% |
6,435,169
-1,035,569
| -14% | -$18.4M |
|
254
Nucor
NUE
$55.3B
| $123M | 0.09% |
550,567
+469,792
| +582% | +$106M |
|
255
Ultragenyx Pharmaceutical
RARE
$2.55B
| $121M | 0.09% |
3,621,200
+1,415,380
| +64% | +$35.2M |
|
256
Comcast
CMCSA
$95.3B
| $120M | 0.09% |
+4,899,902
| New | +$126M |
|
257
Iris Energy
IREN
$15B
| $119M | 0.09% |
2,613,062
-251,820
| -9% | -$13.1M |
|
258
Paylocity
PCTY
$8.14B
| $119M | 0.09% |
1,138,489
+5,816
| +0.5% | +$619K |
|
259
Keysight
KEYS
$53.8B
| $119M | 0.09% |
339,315
+333,460
| +5,695% | +$114M |
|
260
KB Home
KBH
$3.39B
| $117M | 0.09% |
1,876,888
+130,544
| +7% | +$6.79M |
|
261
Cipher Digital
CIFR
$6.55B
| $117M | 0.08% |
4,775,520
+1,768,258
| +59% | +$37.3M |
|
262
NuScale Power
SMR
$3.86B
| $117M | 0.08% |
11,655,351
+7,932,077
| +213% | +$89.5M |
|
263
CALL
Invesco QQQ Trust
QQQ
$486B
| $116M | 0.08% |
157,300
+113,300
| +258% | +$78M |
|
|
264
PUT
Invesco QQQ Trust
QQQ
$486B
| $116M | 0.08% |
157,300
+113,300
| +258% | +$78M |
|
265
Northrop Grumman
NOC
$78.3B
| $116M | 0.08% |
227,386
-88,835
| -28% | -$51.2M |
|
266
Invesco S&P 500 Low Volatility ETF
SPLV
$7.07B
| $115M | 0.08% |
1,536,900
-2,619,700
| -63% | -$193M |
|
267
Oscar Health
OSCR
$9.89B
| $115M | 0.08% |
4,035,689
+1,686,164
| +72% | +$36.3M |
|
268
Itaú Unibanco
ITUB
$82.4B
| $115M | 0.08% |
14,050,490
-6,037,691
| -30% | -$50M |
|
269
Toronto Dominion Bank
TD
$194B
| $115M | 0.08% |
944,156
+64,044
| +7% | +$7.01M |
|
270
Linde
LIN
$225B
| $114M | 0.08% |
219,076
-257,574
| -54% | -$130M |
|
271
PUT
Rivian
RIVN
$24.6B
| $113M | 0.08% |
6,508,000
+710,200
| +12% | +$11.1M |
|
272
Hilton Worldwide
HLT
$73.5B
| $113M | 0.08% |
341,453
-334,238
| -49% | -$110M |
|
273
BCE
BCE
$22.1B
| $112M | 0.08% |
5,216,019
-3,196,487
| -38% | -$76.7M |
|
274
Scorpio Tankers
STNG
$3.93B
| $112M | 0.08% |
1,617,426
+228,416
| +16% | +$17.9M |
|
275
Aehr Test Systems
AEHR
$3.32B
| $112M | 0.08% |
1,164,614
+950,242
| +443% | +$86.8M |
|
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.