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 | |
|---|---|---|---|---|---|---|
1076
Seaboard Corp
SEB
$4.05B
| $18.2M | 0.01% |
4,080
-325
| -7% | -$1.7M |
|
1077
O'Reilly Automotive
ORLY
$73.4B
| $18.2M | 0.01% |
197,174
-2,654,006
| -93% | -$242M |
|
|
PDM
1078
Piedmont Realty Trust
PDM
$1.23B
| $18.1M | 0.01% |
1,981,922
+443,101
| +29% | +$3.65M |
|
1079
CALL
Lumentum
LITE
$74.5B
| $18M | 0.01% |
21,000
+14,000
| +200% | +$12.5M |
|
1080
Unitil
UTL
$977M
| $18M | 0.01% |
341,664
+69,675
| +26% | +$3.61M |
|
1081
Century Communities
CCS
$1.97B
| $18M | 0.01% |
251,173
+49,108
| +24% | +$2.84M |
|
1082
First Trust NASDAQ Technology Dividend Index Fund
TDIV
$4.3B
| $18M | 0.01% |
+156,576
| New | +$17.4M |
|
1083
Adecoagro
AGRO
$1.62B
| $17.9M | 0.01% |
1,878,635
+770,438
| +70% | +$9.7M |
|
1084
Worthington Enterprises
WOR
$2.78B
| $17.9M | 0.01% |
333,110
+129,917
| +64% | +$7.24M |
|
1085
Sphere Entertainment
SPHR
$5.65B
| $17.9M | 0.01% |
103,456
-602,030
| -85% | -$83.9M |
|
1086
Amerant Bancorp
AMTB
$1.13B
| $17.9M | 0.01% |
700,533
+259,986
| +59% | +$6.05M |
|
1087
Westamerica Bancorp
WABC
$1.35B
| $17.8M | 0.01% |
303,836
-49,196
| -14% | -$2.72M |
|
1088
Vishay Precision Group
VPG
$881M
| $17.8M | 0.01% |
118,862
+78,893
| +197% | +$7.32M |
|
1089
Financial Institutions
FISI
$804M
| $17.8M | 0.01% |
457,098
+182,358
| +66% | +$6.48M |
|
1090
AnaptysBio
ANAB
$1.73B
| $17.8M | 0.01% |
262,995
-202,088
| -43% | -$12.2M |
|
1091
FLEX LNG
FLNG
$1.72B
| $17.7M | 0.01% |
631,553
-96,972
| -13% | -$3M |
|
1092
Natural Gas Services Group
NGS
$448M
| $17.7M | 0.01% |
410,330
+45,121
| +12% | +$1.83M |
|
1093
Navigator Holdings
NVGS
$1.37B
| $17.6M | 0.01% |
947,189
+507,896
| +116% | +$11M |
|
1094
Dana Inc
DAN
$3.24B
| $17.6M | 0.01% |
645,035
+108,726
| +20% | +$3.71M |
|
1095
Procter & Gamble
PG
$341B
| $17.5M | 0.01% |
119,597
+75,095
| +169% | +$10.9M |
|
1096
iRadimed
IRMD
$1.11B
| $17.5M | 0.01% |
182,894
+17,225
| +10% | +$1.57M |
|
1097
Arcutis Biotherapeutics
ARQT
$3.11B
| $17.4M | 0.01% |
663,877
+429,570
| +183% | +$10M |
|
1098
Tennant Co
TNC
$1.16B
| $17.4M | 0.01% |
198,668
+16,660
| +9% | +$1.38M |
|
1099
Newmont
NEM
$139B
| $17.4M | 0.01% |
186,064
-69,948
| -27% | -$7.62M |
|
1100
Riley Exploration Permian
REPX
$833M
| $17.2M | 0.01% |
523,161
+101,341
| +24% | +$3.61M |
|
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.