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 | |
|---|---|---|---|---|---|---|
|
PTACU
2576
Patriot Acquisition Corp Units
PTACU
| $2.9M | ﹤0.01% |
+290,000
| New | +$2.89M |
|
2577
PUT
CVS Health
CVS
$119B
| $2.9M | ﹤0.01% |
28,000
+21,500
| +331% | +$1.92M |
|
2578
Pennant Group
PNTG
$1.36B
| $2.9M | ﹤0.01% |
78,362
-48,320
| -38% | -$1.58M |
|
|
HLXC
2579
Helix Acquisition Corp III
HLXC
$241M
| $2.89M | ﹤0.01% |
271,875
| – | – |
|
2580
Vanguard Russell 2000 Value ETF
VTWV
$1.36B
| $2.89M | ﹤0.01% |
14,800
-9,800
| -40% | -$1.81M |
|
2581
Nature's Sunshine
NATR
$252M
| $2.89M | ﹤0.01% |
132,644
-23,692
| -15% | -$553K |
|
2582
WhiteHorse Finance
WHF
$154M
| $2.89M | ﹤0.01% |
430,600
-4,972
| -1% | -$35.4K |
|
2583
Achieve Life Sciences
ACHV
$822M
| $2.88M | ﹤0.01% |
441,187
-147,364
| -25% | -$703K |
|
2584
ESAB
ESAB
$5.06B
| $2.88M | ﹤0.01% |
29,182
+2,730
| +10% | +$264K |
|
2585
Franklin Covey
FC
$229M
| $2.88M | ﹤0.01% |
117,240
+12,952
| +12% | +$295K |
|
2586
Alpha Architect US Quantitative Momentum ETF
QMOM
$434M
| $2.87M | ﹤0.01% |
+36,500
| New | +$2.81M |
|
|
OHAC
2587
Oceanhawk Acquisition Corp
OHAC
| $2.87M | ﹤0.01% |
+290,000
| New | +$2.87M |
|
2588
Marriott International
MAR
$92.9B
| $2.87M | ﹤0.01% |
+7,732
| New | +$2.85M |
|
2589
State Street SPDR S&P 600 Small Cap Value ETF
SLYV
$5.07B
| $2.86M | ﹤0.01% |
26,252
+10,272
| +64% | +$1.06M |
|
2590
PUT
SolarEdge
SEDG
$1.9B
| $2.86M | ﹤0.01% |
48,900
+30,300
| +163% | +$1.59M |
|
2591
Mitek Systems
MITK
$837M
| $2.86M | ﹤0.01% |
141,883
-91,285
| -39% | -$1.42M |
|
2592
Rocky Brands
RCKY
$351M
| $2.85M | ﹤0.01% |
69,224
+32,529
| +89% | +$1.27M |
|
2593
Simulations Plus
SLP
$372M
| $2.85M | ﹤0.01% |
155,891
+53,292
| +52% | +$819K |
|
2594
PUT
Madison Square Garden
MSGS
$9.78B
| $2.85M | ﹤0.01% |
+7,100
| New | +$2.51M |
|
2595
Sensata Technologies
ST
$6.23B
| $2.85M | ﹤0.01% |
59,700
-10,465
| -15% | -$473K |
|
|
NNE
2596
Nano Nuclear Energy
NNE
$1.01B
| $2.84M | ﹤0.01% |
134,565
-154,243
| -53% | -$3.8M |
|
2597
AGCO
AGCO
$7.48B
| $2.84M | ﹤0.01% |
23,697
-74,852
| -76% | -$8.7M |
|
|
LINE
2598
Lineage Inc
LINE
$9.48B
| $2.84M | ﹤0.01% |
65,584
-34,355
| -34% | -$1.35M |
|
2599
Civista Bancshares
CIVB
$574M
| $2.83M | ﹤0.01% |
100,432
+11,922
| +13% | +$303K |
|
2600
Ardagh Metal Packaging
AMBP
$3.2B
| $2.83M | ﹤0.01% |
596,870
-257,694
| -30% | -$1.06M |
|
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.