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 | |
|---|---|---|---|---|---|---|
4876
DHI Group
DHX
$182M
| $46.1K | ﹤0.01% |
+12,426
| New | +$41K |
|
4877
Zedge
ZDGE
$38M
| $45.1K | ﹤0.01% |
+14,561
| New | +$45.1K |
|
4878
FerroAtlántica
GSM
$762M
| $42K | ﹤0.01% |
13,200
+1,900
| +17% | +$7.86K |
|
|
ZENA
4879
ZenaTech Inc
ZENA
$180M
| $41.8K | ﹤0.01% |
+27,861
| New | +$49.9K |
|
|
OGI
4880
Organigram Holdings
OGI
$176M
| $37.1K | ﹤0.01% |
36,365
-50,605
| -58% | -$61.8K |
|
4881
Solid Power
SLDP
$541M
| $36K | ﹤0.01% |
13,900
-133,300
| -91% | -$412K |
|
|
ALLR
4882
Allarity Therapeutics
ALLR
$22.6M
| $35.5K | ﹤0.01% |
27,492
| – | – |
|
4883
TROOPS Inc
TROO
$235M
| $34.7K | ﹤0.01% |
14,116
| – | – |
|
|
APMCR
4884
AmperCap Acquisition Co Right
APMCR
| $34K | ﹤0.01% |
+226,562
| New | +$36.3K |
|
4885
Pasithea Therapeutics
KTTA
$18M
| $33.1K | ﹤0.01% |
64,166
+43,112
| +205% | +$29.7K |
|
4886
Indonesia Energy Corp
INDO
$44.8M
| $32.8K | ﹤0.01% |
11,962
+1,016
| +9% | +$3.1K |
|
|
IMMP
4887
Immutep
IMMP
$56.9M
| $32.2K | ﹤0.01% |
77,130
-47,630
| -38% | -$20.7K |
|
4888
Sentage Holdings
SNTG
$4.83M
| $30.4K | ﹤0.01% |
15,057
-3,900
| -21% | -$8.15K |
|
4889
Xcel Brands
XELB
$5.7M
| $29.7K | ﹤0.01% |
16,518
-587
| -3% | -$1.17K |
|
4890
TOP Financial Group
TOP
$1.75B
| $29.7K | ﹤0.01% |
+3,243
| New | +$15.9K |
|
4891
Sera Prognostics
SERA
$84.4M
| $29.5K | ﹤0.01% |
16,221
-5,743
| -26% | -$11.4K |
|
4892
Full House Resorts
FLL
$76.6M
| $28.7K | ﹤0.01% |
+10,286
| New | +$27.2K |
|
4893
Organogenesis Holdings
ORGO
$232M
| $27.9K | ﹤0.01% |
11,461
-15,536
| -58% | -$38K |
|
4894
Health Catalyst
HCAT
$115M
| $27.3K | ﹤0.01% |
+13,713
| New | +$19.8K |
|
4895
374Water
SCWO
$42.9M
| $25.9K | ﹤0.01% |
13,627
| – | – |
|
|
SY
4896
So-Young International
SY
$230M
| $24.9K | ﹤0.01% |
16,800
+3,900
| +30% | +$9.37K |
|
4897
Battalion Oil
BATL
$77.9M
| $24.2K | ﹤0.01% |
18,496
| – | – |
|
|
BHR
4898
Braemar Hotels & Resorts
BHR
$142M
| $23.7K | ﹤0.01% |
10,983
-458
| -4% | -$1.1K |
|
4899
Humacyte
HUMA
$178M
| $23.1K | ﹤0.01% |
29,548
-147,988
| -83% | -$137K |
|
4900
Kaltura
KLTR
$246M
| $22.8K | ﹤0.01% |
+17,572
| New | +$23.8K |
|
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.