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 | |
|---|---|---|---|---|---|---|
1251
Primerica
PRI
$9.23B
| $13.4M | 0.01% |
47,226
+11,125
| +31% | +$3.04M |
|
1252
Comfort Systems
FIX
$56.7B
| $13.4M | 0.01% |
6,740
-1,654
| -20% | -$3M |
|
1253
PUT
Citigroup
C
$221B
| $13.3M | 0.01% |
95,200
+13,100
| +16% | +$1.71M |
|
|
1254
CALL
Citigroup
C
$221B
| $13.3M | 0.01% |
94,700
+24,900
| +36% | +$3.24M |
|
1255
Pilgrim's Pride
PPC
$7.57B
| $13.2M | 0.01% |
471,208
+104,946
| +29% | +$3.23M |
|
1256
Expedia Group
EXPE
$40.7B
| $13.2M | 0.01% |
51,756
+17,456
| +51% | +$4.15M |
|
1257
Diamondback Energy
FANG
$57.6B
| $13.2M | 0.01% |
75,337
-6,119
| -8% | -$1.19M |
|
1258
US Bancorp
USB
$97.3B
| $13.2M | 0.01% |
219,057
+152,054
| +227% | +$8.52M |
|
1259
Xencor
XNCR
$2.16B
| $13.2M | 0.01% |
819,515
+14,094
| +2% | +$176K |
|
1260
Byline Bancorp
BY
$1.73B
| $13.2M | 0.01% |
350,081
+143,127
| +69% | +$4.81M |
|
1261
Alibaba
BABA
$284B
| $13.2M | 0.01% |
+137,300
| New | +$17.2M |
|
1262
Acuity Brands
AYI
$10.1B
| $13.2M | 0.01% |
34,957
-97,012
| -74% | -$28.8M |
|
1263
VeriSign
VRSN
$26.3B
| $13.1M | 0.01% |
52,248
-406,234
| -89% | -$113M |
|
1264
Nutanix
NTNX
$18B
| $13.1M | 0.01% |
257,782
-583,602
| -69% | -$26.4M |
|
1265
M-tron Industries
MPTI
$344M
| $13.1M | 0.01% |
132,465
+70,002
| +112% | +$5.57M |
|
|
PDS
1266
Precision Drilling
PDS
$1.13B
| $13.1M | 0.01% |
171,317
-23,929
| -12% | -$2.19M |
|
1267
Cars.com
CARS
$662M
| $13.1M | 0.01% |
1,199,978
+1,052,691
| +715% | +$10.7M |
|
1268
Relay Therapeutics
RLAY
$4.33B
| $13.1M | 0.01% |
700,921
-668,228
| -49% | -$9.7M |
|
1269
Perdoceo Education
PRDO
$2.07B
| $13.1M | 0.01% |
408,595
-135,410
| -25% | -$4.64M |
|
1270
Everspin Technologies
MRAM
$393M
| $13.1M | 0.01% |
540,138
+441,271
| +446% | +$9.89M |
|
1271
PUT
Valero Energy
VLO
$99.6B
| $12.9M | 0.01% |
49,700
+34,700
| +231% | +$8.54M |
|
1272
iShares US Oil & Gas Exploration & Production ETF
IEO
$616M
| $12.9M | 0.01% |
117,548
+108,348
| +1,178% | +$12.6M |
|
1273
Nike
NKE
$60.5B
| $12.9M | 0.01% |
313,740
+192,875
| +160% | +$8.48M |
|
1274
Turkcell
TKC
$4.72B
| $12.9M | 0.01% |
2,190,172
-239,320
| -10% | -$1.47M |
|
1275
MP Materials
MP
$10.2B
| $12.9M | 0.01% |
229,696
-1,278,877
| -85% | -$77.8M |
|
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.