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 |
Sandisk
SNDK
|
+$744M |
| 5 |
Dell
DELL
|
+$688M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 19.7% |
| 2 | Financials | 15.22% |
| 3 | Miscellaneous | 12.05% |
| 4 | Healthcare | 11.94% |
| 5 | Industrials | 11.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
5501
BHAV Acquisition Corp Units
BHAVU
| – | – |
-181,250
| Closed | -$1.81M | – |
|
5502
Blue Water Acquisition Corp IV Units
BWIV.U
| – | – |
-226,562
| Closed | -$2.25M | – |
|
5503
Armada Acquisition Corp III Warrant
AACIW
$2.86M
| – | – |
-203,906
| Closed | -$42.9K | – |
|
5504
Colombier Acquisition Corp III Warrants
CLBR.WS
| – | – |
-58,906
| Closed | -$39.5K | – |
|
5505
Future Money Acquisition Corp Units
FMACU
| – | – |
-166,145
| Closed | -$1.66M | – |
|
5506
Inflection Point Acquisition Corp VI Units
IPFXU
$226M
| – | – |
-307,500
| Closed | -$3.11M | – |
|
5507
QDRO Acquisition Corp Units
QADRU
| – | – |
-342,708
| Closed | -$3.4M | – |
|
5508
KPET Ultra Paceline Corp Units
KPET.U
| – | – |
-271,875
| Closed | -$2.72M | – |
|
5509
DELISTED
M-tron Industries Rights (expiring April 15 2026)
MPTI.RT
| – | – |
-57,858
| Closed | -$122K | – |
|
5510
Cambridge Acquisition Corp Warrants
CAQUW
$1.54M
| – | – |
-120,833
| Closed | -$30.2K | – |
|
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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 $5.38B 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 Miscellaneous.
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.