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 | |
|---|---|---|---|---|---|---|
4476
CALL
Canadian Pacific Kansas City
CP
$85B
| $286K | ﹤0.01% |
+3,300
| New | +$283K |
|
4477
State Street SPDR S&P 1500 Value Tilt ETF
VLU
$776M
| $286K | ﹤0.01% |
+1,200
| New | +$279K |
|
|
YARW
4478
Yarrow Bioscience
YARW
$97.2M
| $286K | ﹤0.01% |
8,776
+248
| +3% | +$8.04K |
|
4479
PUT
Allstate
ALL
$64.2B
| $286K | ﹤0.01% |
1,200
-4,800
| -80% | -$1.04M |
|
4480
AdaptHealth
AHCO
$751M
| $286K | ﹤0.01% |
27,401
+8,593
| +46% | +$95.9K |
|
4481
PUT
O'Reilly Automotive
ORLY
$72.1B
| $285K | ﹤0.01% |
+3,100
| New | +$283K |
|
|
MCN
4482
Madison Covered Call & Equity Strategy Fund
MCN
$119M
| $285K | ﹤0.01% |
51,709
| – | – |
|
4483
CALL
Burlington
BURL
$20.6B
| $285K | ﹤0.01% |
+900
| New | +$290K |
|
4484
Forte Biosciences
FBRX
$1.63B
| $285K | ﹤0.01% |
13,411
-2,098
| -14% | -$49.7K |
|
4485
enGene Therapeutics
ENGN
$119M
| $285K | ﹤0.01% |
164,570
+5,501
| +3% | +$22.4K |
|
4486
CALL
Ventas
VTR
$47.7B
| $284K | ﹤0.01% |
3,200
-2,700
| -46% | -$230K |
|
4487
PUT
Pilgrim's Pride
PPC
$7.68B
| $284K | ﹤0.01% |
+10,100
| New | +$310K |
|
4488
State Street Industrial Select Sector SPDR ETF
XLI
$33.8B
| $283K | ﹤0.01% |
+1,530
| New | +$266K |
|
4489
PUT
Nice
NICE
$5.87B
| $282K | ﹤0.01% |
+3,100
| New | +$301K |
|
4490
Tenaya Therapeutics
TNYA
$156M
| $281K | ﹤0.01% |
380,790
-899,600
| -70% | -$683K |
|
|
BLSH
4491
Bullish
BLSH
$4.61B
| $281K | ﹤0.01% |
12,000
+4,900
| +69% | +$170K |
|
4492
CALL
Under Armour
UAA
$2.32B
| $281K | ﹤0.01% |
43,900
+26,200
| +148% | +$155K |
|
4493
CALL
Lennar Class A
LEN
$21B
| $281K | ﹤0.01% |
+3,100
| New | +$277K |
|
4494
Better Online Solutions
BOSC
$32.8M
| $280K | ﹤0.01% |
62,335
+18,882
| +43% | +$85.1K |
|
|
B
4495
CALL
Barrick Mining
B
$78.3B
| $279K | ﹤0.01% |
7,600
-18,400
| -71% | -$754K |
|
4496
Exagen
XGN
$192M
| $279K | ﹤0.01% |
59,992
-97,829
| -62% | -$368K |
|
4497
AirSculpt Technologies
AIRS
$198M
| $278K | ﹤0.01% |
61,771
-4,300
| -7% | -$17.4K |
|
4498
PUT
EPAM Systems
EPAM
$5.69B
| $278K | ﹤0.01% |
+3,500
| New | +$370K |
|
4499
PUT
Wayfair
W
$13.9B
| $277K | ﹤0.01% |
+3,000
| New | +$221K |
|
4500
AerSale
ASLE
$265M
| $277K | ﹤0.01% |
43,778
-137,133
| -76% | -$896K |
|
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.