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 | |
|---|---|---|---|---|---|---|
|
JBTM
3876
JBT Marel
JBTM
$6.06B
| $646K | ﹤0.01% |
4,455
| – | – |
|
|
SUIG
3877
Sui Group Holdings
SUIG
$83.7M
| $645K | ﹤0.01% |
556,197
-824,105
| -60% | -$1.19M |
|
3878
Urban Outfitters
URBN
$6.36B
| $645K | ﹤0.01% |
9,100
-4,100
| -31% | -$292K |
|
3879
International General Insurance
IGIC
$1.13B
| $644K | ﹤0.01% |
24,607
-1,222
| -5% | -$31.2K |
|
3880
OP Bancorp
OPBK
$228M
| $644K | ﹤0.01% |
42,956
+12,177
| +40% | +$173K |
|
3881
CALL
Frontline
FRO
$9.72B
| $644K | ﹤0.01% |
+18,500
| New | +$680K |
|
3882
CALL
Aehr Test Systems
AEHR
$3.32B
| $644K | ﹤0.01% |
+6,700
| New | +$612K |
|
|
AIRO
3883
AIRO Group Holdings
AIRO
$271M
| $643K | ﹤0.01% |
87,075
+76,775
| +745% | +$601K |
|
3884
PUT
PPG Industries
PPG
$25.3B
| $643K | ﹤0.01% |
+5,300
| New | +$590K |
|
|
SFIX
3885
Stitch Fix
SFIX
$446M
| $643K | ﹤0.01% |
156,336
+55,136
| +54% | +$201K |
|
3886
CALL
Textron
TXT
$14.3B
| $642K | ﹤0.01% |
+7,000
| New | +$636K |
|
3887
Arq
ARQ
$100M
| $642K | ﹤0.01% |
251,777
+223,077
| +777% | +$553K |
|
3888
CALL
On Holding
ONON
$10B
| $641K | ﹤0.01% |
18,100
-20,500
| -53% | -$749K |
|
3889
PUT
Omnicom Group
OMC
$24B
| $641K | ﹤0.01% |
8,800
+2,800
| +47% | +$211K |
|
3890
CALL
Wynn Resorts
WYNN
$10.3B
| $641K | ﹤0.01% |
6,600
+600
| +10% | +$61.9K |
|
3891
CALL
Boot Barn
BOOT
$5.01B
| $641K | ﹤0.01% |
3,900
+1,600
| +70% | +$259K |
|
3892
Valvoline
VVV
$4.33B
| $641K | ﹤0.01% |
16,200
-7,000
| -30% | -$243K |
|
3893
AmpliTech
AMPG
$104M
| $641K | ﹤0.01% |
92,032
+42,993
| +88% | +$180K |
|
|
ADUR
3894
Aduro Clean Technologies
ADUR
$569M
| $640K | ﹤0.01% |
40,616
+10,854
| +36% | +$147K |
|
|
CAI
3895
Caris Life Sciences
CAI
$7.42B
| $640K | ﹤0.01% |
+35,900
| New | +$643K |
|
3896
USCB Financial Holdings
USCB
$415M
| $640K | ﹤0.01% |
+31,261
| New | +$595K |
|
3897
PUT
HubSpot
HUBS
$12B
| $639K | ﹤0.01% |
+3,500
| New | +$732K |
|
3898
PUT
Woodward
WWD
$20.3B
| $638K | ﹤0.01% |
1,500
+100
| +7% | +$37.9K |
|
3899
StoneX
SNEX
$8.26B
| $637K | ﹤0.01% |
+8,064
| New | +$605K |
|
3900
CALL
eBay
EBAY
$46.3B
| $637K | ﹤0.01% |
5,700
-5,500
| -49% | -$587K |
|
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.